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Copper-catalyzed diastereoselective hydrothioetherification of oxa(aza)benzonorbornadienes

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00659A, Paper
Qifu Lin, Yongqi Yao, Wen Yang, Yun Tan, Shuqi Chen, Donghan Chen, Dingqiao Yang
A novel copper-catalyzed multicomponent one-pot syn-selective hydrothioetherification of oxa(aza)bicyclic alkenes to synthesize unsymmetrical thioethers has been established.
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Asymmetric trehalose analogues to probe disaccharide processing pathways in mycobacteria

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00253D, Paper
Open Access
  This article is licensed under a Creative Commons Attribution 3.0 Unported Licence.
Hadyn L. Parker, Ruben M. F. Tomás, Christopher M. Furze, Collette S. Guy, Elizabeth Fullam
Chemoenzymatic synthesis of azido-functionalised asymmetric trehalose analogues that are resistant to enzymatic degradation to probe carbohydrate processing pathways in mycobacteria.
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Acylation of oxindoles using methyl/phenyl esters via mixed Claisen condensation – An access to 3-alkylideneoxindoles

Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00789G, Communication
Ramdas Sreedharan, Purushothaman Rajeshwaran, Pradeep Kumar Reddy Panyam, Saurabh Yadav, C. M. Nagaraja, THIRUMANAVELAN GANDHI
Predominantly, aggressive acid chlorides and stoichiometric coupling reagents are employed in the acylating process for synthesizing carbonyl tethered heterocycles. Herein, we report simple acyl sources, viz. methyl and phenyl esters...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Heterologous expression of the trichostatin gene cluster and functional characterization of N-methyltransferase TsnB8

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00617C, Communication
Wei Liu, Vinay Gopal Jannu, Zhiwen Liu, Qingbo Zhang, Xiaodong Jiang, Liang Ma, Wenjun Zhang, Changsheng Zhang, Yiguang Zhu
N-Methyltransferase TsnB8 was demonstrated to catalyze successive methyltransfer reactions in the biosynthesis of trichostatin.
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Recent Progress on Transition Metal-catalysed Regioselective C–H Transformations Based on Noncovalent Interactions

Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00703J, Review Article
Yoichiro Kuninobu, Takeru Torigoe
Transition metal-catalysed C–H transformations are powerful tools to obtain functionalised organic molecules from simple starting materials. To control regioselectivity is one of the most important issues in C–H transformations. Since...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Synthesis of Glycosyl Sulfoximines by a Highly Chemo- and Stereoselective NH- and O-Transfer to Thioglycosides

Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00647E, Paper
Arianna Tota, Claudia Carlucci, Luisa Pisano, Giuliano Cutolo, Guy James Clarkson, Giuseppe Romanazzi, Leonardo Degennaro, James A Bull, Patrick Rollin, Renzo Luisi
A synthesis of unprecedented and stable glycosyl sulfoximines is reported. The developed strategies represent the first examples of highly stereoselective sulfoximine formation directly from thioglycosides. X-ray analysis confirmed the structure...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Copper(I)/Ganphos catalysis: enantioselective synthesis of diverse spirooxindoles using iminoesters and alkyl substituted methyleneindolinones

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00546K, Paper
Hao Cui, Ke Li, Yue Wang, Manman Song, Congcong Wang, Donghui Wei, Er-Qing Li, Zheng Duan, François Mathey
A copper/Ganphos-catalyzed asymmetric 1,3-dipolar cycloaddition of glycine iminoesters with alkyl substituted 3-methylene-2-oxindoles is described, producing the spiro[pyrrolidin-3,3'-oxindole]s in good yields with high ee.
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Enantioselective Synthesis of Indanone Spiro-Isochromanone Derivatives via Dinuclear Zinc-Catalyzed Michael/Transesterification Tandem Reaction

Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00541J, Paper
Xiao-Chao Yang, Meng Xu, Jin-Bao Wang, Meng-Meng Liu, Francois Mathey, Yuan-Zhao Hua, Mincan Wang
An enantioselective Michael/transesterification tandem reaction of α-hydroxy indanones with ortho-ester chalcones was realized by dinuclear zinc catalysts. A series of enantiomerically pure spiro[indanone-2,3’-isochromane-1-one] derivatives were obtained in good yields with...
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Synthesis and photophysical properties of selenopheno[2,3-b]quinoxaline and selenopheno[2,3-b]pyrazine heteroacenes

Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00718H, Paper
Amol Sonawane, Atsushi Shimozuma, Taro Udagawa, Masayuki Ninomiya, Mamoru Koketsu
In this paper, we report the novel synthesis of three different heterocycles namely 2-arylselenopheno[2,3-b]quinoxaline, 3-(aryl/alkylselanyl)-2-arylselenopheno[2,3-b]quinoxaline and 6-phenyl-7-(arylselanyl)selenopheno[2,3-b]pyrazine derivatives from the corresponding 2,3-dichloroquinoxaline and 2,3-dichloropyrazine derivatives. Further, photophysical properties were investigated...
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O-Cyclopropyl hydroxylamines: gram-scale synthesis and utility as precursors for N-heterocycles

Org. Biomol. Chem., 2020, 18,3281-3287
DOI: 10.1039/D0OB00611D, Paper
Kaitlyn Lovato, Urmibhusan Bhakta, Yi Pin Ng, László Kürti
A novel and scalable synthesis of O-cyclopropyl hydroxylamines is reported. These compounds are bench-stable and have been shown to be practical precursors for the synthesis of N-heterocycles via a di-heteroatom [3,3]-sigmatropic rearrangement.
The content of this RSS Feed (c) The Royal Society of Chemistry




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Late-stage synthesis and application of photoreactive probes derived from direct benzoylation of heteroaromatic C–H bonds

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00336K, Communication
Kevin D. Hesp, Jun Xiao, Graham M. West
A synthetically-driven, late-stage C–H benzoylation strategy for the expedited preparation and evaluation of heterocyclic alternatives to more classical benzophenone photoreactive probes is reported.
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Spiroconyone A, a new phytosterol with a spiro [5,6] ring system from Conyza japonica

Org. Biomol. Chem., 2020, Advance Article
DOI: 10.1039/D0OB00666A, Paper
Long-Gao Xiao, Yu Zhang, Hong-Li Zhang, Ding Li, Qiong Gu, Gui-Hua Tang, Qian Yu, Lin-Kun An
The first rearranged phytosterol (spiroconyone A) with an unusual spiro [5,6] ring system and two new TDP1 inhibitors 7 and 10 showing a strong synergistic effect with topotecan were isolated from Conyza japonica.
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Highly modified steroids from Inonotus obliquus

Org. Biomol. Chem., 2020, Accepted Manuscript
DOI: 10.1039/D0OB00474J, Paper
Chun-Xin Zou, Zilin Hou, Ming Bai, Rui Guo, Bin Lin, Xiaobo Wang, Xiaoxiao Huang, Shaojiang Song
Six undescribed steroids were isolated from the fungus Inonotus obliquus. Notably, compounds 1 and 2 represented the first example of 8, 14-seco-4-methylpregnane. By spectroscopic data analyses, quantum chemical calculations and...
The content of this RSS Feed (c) The Royal Society of Chemistry




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Fire arm, opening an eatery: get licence application forms online

Now, getting a licence for a fire-arm or operating an eatery will be easy with Delhi Police on Tuesday launching a dedicated website for its Licencing Branch.




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Delhi: 2 schools closed after students test positive for H1N1 virus

Two city schools have been closed for a week from Monday after a student each from the educational institution tested positive for swine flu.




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'My goal is playing for Manchester United one day'

Rajib Boy from Kolkata is 16-year-old and a talented footballer, recently selected after a national scouting contest to attend a Manchester United Football Club training camp.




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'Treat the refugee issue as a matter of rights'

The refugee question in the Indian subcontinent dates back to 1947 when India was partitioned. A horrifying feature of the birth of free India – and Pakistan – was the large mass of refugees who were forced to relocate in the most adverse conditions and amidst brutal violence.




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Australia-India cricket rivalry has even bettered Ashes: John Harnden

CEO of the ICC World Cup 2015 John Harnden spoke with Amin Ali about ensuring excitement in cricket's mega-tournament, clamping down on racism, managing 'minnows' matches — and how Australia is sizing up India as a rival for the trophy.




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A strong and vibrant India is important for peace and stability in Asia: K Shanmugam, Singapore's foreign minister

Singapore is one of India's closest partners in Asia. In his first visit to meet PM Narendra Modi after the formation of the NDA government, K Shanmugam, Singapore's foreign minister, tells Indrani Bagchi they would build some of India's new smart cities and involve themselves in skill development programmes in India.




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Indian-American scientists develop alternative to radio tags

A team of Indian-American scientists has developed a smart tracking system, which could very well provide an honourable alternative to the radio tags.




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Indian-origin Canadian gets life term for killing wife

A Canadian court has sentenced an Indian-origin man to life in prison for murdering his pregnant wife in 2006.




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Lucknow: Youth attacked with battery acid




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Two more areas turn hotspots after 3 test +ve




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Woman kills self at AIIMS after her mother dies

A 23-year-old woman allegedly committed suicide at the AIIMS here after her mother died of cancer at the hospital, police said on Saturday. She was reported missing after her mother passed away on Wednesday and her body was found near the new private ward block of the hospital on Saturday, they said, adding that she fell to her death from a building.




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Massive asteroid 1998 OR2 to fly by planet Earth today!

It is also the largest asteroid expected to zoom by Earth within the next two months.




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Why Ayushmann is not interested in Rs 200 crores

'I can do slice-of-life kind of films anytime; But playing a cop is different. It's difficult to maintain that intensity on screen. That's where the real acting comes in place.'




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The Manoj Bajpayee interview you MUST READ!

'Mumbai is very different from the rest of India. It can be ruthless if you don't have work or friends. The struggle time and times of disappointment are horrific and can break you.'




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'Laughter is so important these days'

'Comedy comes naturally to me.'





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'You have to love yourself, no matter what'

'Everybody had told me that I was the next big thing in Bollywood because my face and body structure was like a superstar. But when it didn't happened, I learned a lot of important things in life.'




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'I want to do films that my daughter can watch'

'If you don't get married, it's not a crime. If you do, it's not an achievement either.'




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A Rani Mukerji interview you must read!

'There is an anger simmering in a few people whose mindsets are neck deep in tradition. They are simmering because they feel how is it that she's able to educate herself? How is it that she's allowed to talk over me? How is it that she's allowed to do what she wants to do? This is coming out in these crimes,' says Rani Mukerji.






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'I have not entertained negativity in my life'

'Chhapaak is definitely the most challenging film of my career.''I have gone through many emotionally challenging experiences, but none affected me the way it did when I played an acid attack survivor.'






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Folklife News & Events: New Occupational Folklife Project Interviews

The American Folklife Center (AFC) at the Library of Congress is delighted to announce that four (4) new Occupational Folklife Project collections are now available on the Library of Congress website. They are “Working the Waterfront: New Bedford, Massachusetts;” “Funeral Service Workers in the Carolinas;” “Illuminating History: Union Electricians in New York City;” and “Homeless Shelter Workers in the Upper Midwest.” The collections consist mainly of audio recordings of oral history interviews, with supporting photos and documents. The four new collections join previously released collections documenting the experiences of home health care workers, beauty shop employees, circus workers, gold miners, ironworkers, racetrack employees, and workers in the Port of Houston.

Through the Occupational Folklife Project (OFP), the AFC has now amassed more than 1,000 interviews with hundreds of contemporary American workers representing scores of trades and occupations. These hour-long oral history interviews feature workers discussing their current jobs, formative work experiences, training, aspirations, occupational communities, hopes for the future, and on-the-job challenges and rewards. They tell stories of how workers learned their trades, their skills and work routines, legendary jobs (good and bad), respected mentors, and flamboyant co-workers. They document the knowledge, dedication and insights of American workers, and add workers’ voices to the permanent record of America’s history preserved at the Library of Congress, America’s national library. Adding the collections to the Library of Congress website enables researchers, educators, and members of the public to access them from their homes, schools, and local libraries. OFP interviews can also be accessed at the AFC’s Reading Room at the Library of Congress in Washington, DC.

AFC Director Betsy Peterson notes: “AFC’s innovative Occupational Folklife Project enables researchers and members of the public to have direct access to hundreds of hours of fieldwork with some of America’s most eloquent, engaging, and passionate spokespeople for the trades and occupations that shape our shared national culture. These oral histories not only enrich our current understanding of our fellow Americans, but will inform scholars and researchers for generations to come about the lives of workers at the beginning of the 21st century. Listeners will be able to access the oral histories, images and fieldwork that previously could be accessed only by visiting the Library of Congress in Washington. ”

The OFP was launched in 2010. It is funded in part by AFC’s Archie Green Fellowships, which support teams of researchers throughout the United States, who perform interviews documenting a particular occupation.

New OFP collections available online are:

Working the Waterfront: New Bedford, Massachusetts
The New Bedford Fishing Heritage Center (NBFHC) received an Archie Green Fellowship to document workers on the New Bedford, Massachusetts, waterfront for the Occupational Folklife Project (OFP). Folklorist and NBFHC Executive Director Laura Orleans, working with anthropologists Madeleine Hall-Arber and Corinn Williams and oral historian Fred Calabretta, recorded oral histories with 58 workers involved in diverse fishing-related trades on the New Bedford waterfront. Documented tradespeople range from fish packers to net makers, navigational electronic technicians to marine divers, and maritime upholsterers to ice house workers. The individual interviews are supplemented by striking workplace portraits taken by gifted New Bedford photographer Phillip Mello, who was also interviewed about his job as general manager at Bergie’s Seafood. Mello has been taking photographs of his fellow waterfront workers since 1975, and his work is currently on exhibit at the American Folklife Center.


Funeral Services Workers in the Carolinas
Folklorist Sarah Bryan of Durham, North Carolina, received an Archie Green Fellowship from the American Folklife Center to document the work of funeral services workers in North and South Carolina. She explored how, through their work, funeral service workers engage with the funerary folklore and religious beliefs of diverse Carolina communities, including African American, Gullah, Jewish, Scottish and Scots-Irish, as well as more recently arrived immigrant groups. Interviewees included directors of multi-generational funeral homes and other funeral workers from diverse backgrounds and experiences. A total of 16 interviews are included in this collection; many are accompanied by photographs and historical images.


Homeless Shelter Workers in the Upper Midwest
Social services worker, writer, and documentarian Margaret Miles of Minneapolis, Minnesota, received an Archie Green Fellowship from the American Folklife Center to document workers in the emergency homeless services in three interrelated Midwestern urban centers: Bismarck, North Dakota; Minneapolis-St. Paul, Minnesota; and Chicago, Illinois. She recorded interviews with overnight shelter advocates, meal and clothing center coordinators, street outreach workers, daytime drop-in supervisors, and housing case managers and others who work to resolve housing issues and assist individuals with financial crises, employment, addiction, illness, or mental health concerns. As she notes: their work makes them "master-navigators of complex systems such as healthcare, social security, corrections, veterans’ benefits, and tenant-landlord law." This collection consists of 18 interviews with shelter workers serving diverse communities of clients, including ex-offenders, abused women, LGBT and Native American youth, and individuals with HIV/AIDS. Many of the interviews are accompanied by images by Miles's co-documentarian, photographer Catherine ten Broeke. Troyd Geist, Folklorist for the North Dakota Arts Council, served as a consultant to the project.


Illuminating History: Union Electricians in New York City
New York researcher and electrician Jaime Lopez, in affiliation with SUNY Empire State College's Harry Van Arsdale Jr. School of Labor Studies (HVASLS) and The International Brotherhood of Electrical Workers (IBEW, Local #3) in Queens, New York, received an Archie Green Fellowship from the American Folklife Center to document the occupational culture of urban IBEW electricians, who “through manufacture, installation, and maintenance serve the greater New York City area.” Lopez worked with a research team that included labor faculty Barrie Cline and labor historian Anne D’Orazio from HVASLS, Queens-based artist/documentarian Setare S. Arashloo, and Local #3 electrician Paul Vance. Folklorist Naomi Sturm served as consultant to the project. The team recorded 22 oral histories with IBEW Local #3 electricians reflecting a wide range of ages, backgrounds, experiences, and occupational specialties. Many interviews are accompanied by worksite photographs and photographs of union-related activities.

Click here for more information.




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[ASAP] Modifying the Electrocatalyst–Ionomer Interface via Sulfonated Poly(ionic liquid) Block Copolymers to Enable High-Performance Polymer Electrolyte Fuel Cells

ACS Energy Letters
DOI: 10.1021/acsenergylett.0c00532




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[ASAP] Controlling Surface Phase Transition and Chemical Reactivity of O3-Layered Metal Oxide Cathodes for High-Performance Na-Ion Batteries

ACS Energy Letters
DOI: 10.1021/acsenergylett.0c00700




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[ASAP] A Self-Mediating Redox Flow Battery: High-Capacity Polychalcogenide-Based Redox Flow Battery Mediated by Inherently Present Redox Shuttles

ACS Energy Letters
DOI: 10.1021/acsenergylett.0c00611




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[ASAP] Effect of Chelation on Iron–Chromium Redox Flow Batteries

ACS Energy Letters
DOI: 10.1021/acsenergylett.0c00761




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[ASAP] An Extremely Fast Charging Li<sub>3</sub>V<sub>2</sub>(PO<sub>4</sub>)<sub>3</sub> Cathode at a 4.8 V Cutoff Voltage for Li-Ion Batteries

ACS Energy Letters
DOI: 10.1021/acsenergylett.0c00702




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Do we need a loneliness minister?

One of the many ironies of modern living is that while technology is bringing people closer, the sense of loneliness is growing. That’s because a text message can never replace a hug, and virtual Siri a real friend. ​




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Nondestructive testing to identify concrete bridge deck deterioration / Nenad Gucunski ... [et al.]

Barker Library - TA440.N68 2013




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Twelfth International Conference on Recent Advances in Concrete Technology and Sustainability Issues 2012: ACI SP 289, Prague, Czech Republic, 30 October - 2 November 2012 / editors: Terence C. Holland, Pawan R. Gupta, V. M. Malhotra

Barker Library - TA439.C366 2012




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Numerical modeling of concrete cracking / edited by Günter Hofstetter, Günther Meschke

Barker Library - TA440.N86 2011




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The economics, performance, and sustainability of internally cured concrete: held at the ACI Fall 2011 [i.e. 2012] Convention, Toronto, Ontario, Canada 21-25 October 2011 [i.e. 2012] / editors, Anton K. Schindler, Jiri G. Grygar, W. Jason Weiss

Barker Library - TA440.E358 2012




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Bio-aggregate-based building materials: applications to hemp concretes / edited by Sofiane Amziane, Laurent Arnaud

Barker Library - TA441.B56 2013




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Concrete: microstructure, properties, and materials.

Barker Library - TA439.M364 2014