Archive for March, 2014

Top 25 most-read Chemical Science articles in 2013

Chemical Science coverHave you seen the most-read Chemical Science articles from 2013?

Intramolecular C(sp3)–H amination
Jenna L. Jeffrey and Richmond Sarpong
DOI: 10.1039/C3SC51420J

Dialkylbiaryl phosphines in Pd-catalyzed amination: a user’s guide
David S. Surry and Stephen L. Buchwald
DOI: 10.1039/C0SC00331J

The role of organometallic copper(III) complexes in homogeneous catalysis

Alicia Casitas and Xavi Ribas
DOI: 10.1039/C3SC21818J

Design and preparation of new palladium precatalysts for C–C and C–N cross-coupling reactions
Nicholas C. Bruno, Matthew T. Tudge and Stephen L. Buchwald
DOI: 10.1039/C2SC20903A

Chelation-assisted Rh(III)-catalyzed C2-selective oxidative C–H/C–H cross-coupling of indoles/pyrroles with heteroarenes
Xurong Qin, Hu Liu, Dekun Qin, Qian Wu, Jingsong You, Dongbing Zhao, Qiang Guo, Xiaolei Huang and Jingbo Lan
DOI: 10.1039/C3SC22241A

A robust protocol for Pd(II)-catalyzed C-3 arylation of (1H) indazoles and pyrazoles: total synthesis of nigellidine hydrobromide
Mengchun Ye, Andrew J. F. Edmunds, James A. Morris, David Sale, Yejia Zhang and Jin-Quan Yu DOI: 10.1039/C3SC50184A

N-Heterocyclic carbene (NHC)–copper-catalysed transformations of carbon dioxide
Liang Zhang and Zhaomin Hou
DOI: 10.1039/C3SC51070K

Chiral organic contact ion pairs in metal-free catalytic enantioselective oxidative cross-dehydrogenative coupling of tertiary amines to ketones
Gen Zhang, Yunxia Ma, Shoulei Wang, Weidong Kong and Rui Wang
DOI: 10.1039/C3SC50604E

Carbofluorination via a palladium-catalyzed cascade reaction
Marie-Gabrielle Braun, Matthew H. Katcher and Abigail G. Doyle
DOI: 10.1039/C2SC22198E

Pd(II)-catalyzed alkoxylation of unactivated C(sp3)–H and C(sp2)–H bonds using a removable directing group: efficient synthesis of alkyl ethers
Fa-Jie Chen, Sheng Zhao, Fang Hu, Kai Chen, Qi Zhang, Shuo-Qing Zhang and Bing-Feng Shi
DOI: 10.1039/C3SC51993G

Pd-catalyzed oxidative C–H/C–H cross-coupling of pyridines with heteroarenes
Bo Liu, Yumin Huang, Jingbo Lan, Feijie Song and Jingsong You
DOI: 10.1039/C3SC50348H

Catalytic hydrotrifluoromethylation of styrenes and unactivated aliphatic alkenes via an organic photoredox system
Dale J. Wilger, Nathan J. Gesmundo and David A. Nicewicz
DOI: 10.1039/C3SC51209F

Rethinking the term “pi-stacking”
Chelsea R. Martinez and Brent L. Iverson
DOI: 10.1039/C2SC20045G

One-shot indole-to-carbazole π-extension by a Pd–Cu–Ag trimetallic system
Kyohei Ozaki, Hua Zhang, Hideto Ito, Aiwen Lei and Kenichiro Itami
DOI: 10.1039/C3SC51447A

Photoelectrochemical properties of LaTiO2N electrodes prepared by particle transfer for sunlight-driven water splitting
Tsutomu Minegishi, Naoyuki Nishimura, Jun Kubota and Kazunari Domen
DOI: 10.1039/C2SC21845C

Rhodium-catalyzed enantioselective cyclopropanation of electron-deficient alkenes
Hengbin Wang, David M. Guptill, Adrian Varela-Alvarez, Djamaladdin G. Musaev and Huw M. L. Davies
DOI: 10.1039/C3SC50425E

Aminocatalytic remote functionalization strategies
Hao Jiang, Łukasz Albrecht and Karl Anker Jørgensen
DOI: 10.1039/C3SC50405K

Palladium-catalyzed coupling of functionalized primary and secondary amines with aryl and heteroaryl halides: two ligands suffice in most cases
Debabrata Maiti, Brett P. Fors, Jaclyn L. Henderson, Yoshinori Nakamura and Stephen L. Buchwald
DOI: 10.1039/C0SC00330A

On the role of anionic ligands in the site-selectivity of oxidative C–H functionalization reactions of arenes
Italo A. Sanhueza, Anna M. Wagner, Melanie S. Sanford and Franziska Schoenebeck
DOI: 10.1039/C3SC00017F

Copper-mediated trifluoromethylation of propiolic acids: facile synthesis of α-trifluoromethyl ketones
Zhengbiao He, Rui Zhang, Mingyou Hu, Lingchun Li, Chuanfa Ni and Jinbo Hu
DOI: 10.1039/C3SC51613J

Synergistic catalysis: A powerful synthetic strategy for new reaction development
Anna E. Allen and David W. C. MacMillan
DOI: 10.1039/C2SC00907B

Ruthenium-catalyzed ortho-C–H bond alkylation of aromatic amides with α,β-unsaturated ketones via bidentate-chelation assistance
Guy Rouquet and Naoto Chatani
DOI: 10.1039/C3SC50310K

Development of a generic activation mode: nucleophilic α-substitution of ketones via oxy-allyl cations
Mark N. Vander Wal, Andrew K. Dilger and David W. C. MacMillan
DOI: 10.1039/C3SC51266E

Rh(III)-catalyzed C–H activation/cycloaddition of benzamides and methylenecyclopropanes: divergence in ring formation

Sunliang Cui, Yan Zhang and Qifan Wu
DOI: 10.1039/C3SC51424B

Cross coupling of thioethers with aryl boroxines to construct biaryls via Rh catalyzed C–S activation
Fei Pan, Hui Wang, Peng-Xiang Shen, Jing Zhao and Zhang-Jie Shi
DOI: 10.1039/C3SC22242J


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Hot Chemical Science articles for March

All of the articles below are free to access until 13th April 

Turn-ON fluorescent affinity labeling using a small bifunctional O-nitrobenzoxadiazole unit
Takao Yamaguchi, Miwako Asanuma, Shuichi Nakanishi, Yohei Saito, Masateru Okazaki, Kosuke Dodo and Mikiko Sodeoka
Chem. Sci., 2014,5, 1021-1029
DOI: 10.1039/C3SC52704B, Edge Article  

   


DNAzyme-based 2:1 and 4:1 multiplexers and 1:2 demultiplexer
Ron Orbach, Francoise Remacle, R. D. Levine and Itamar Willner
Chem. Sci., 2014,5, 1074-1081
DOI: 10.1039/C3SC52752B, Edge Article  

 


Incorporation of electrically charged N-alkyl amino acids into ribosomally synthesized peptides via post-translational conversion
Takashi Kawakami, Toru Sasaki, Patrick C. Reid and Hiroshi Murakami
Chem. Sci., 2014,5, 887-893
DOI: 10.1039/C3SC52744A, Edge Article   

   Click here for more free hot Chemical Science articles for March

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Four steps to asthma treatment

Montelukast works by blocking the action of chemicals released by the body as part of allergic and inflammatory reactions

Scientists based in the US have devised a new way to make Montelukast, a drug used in the treatment of asthma and seasonal allergies.

Asthma is a chronic inflammatory disease of the airways which affects up to 300 million people worldwide and caused 250,000 deaths in 2011. Although there is no cure for asthma, symptoms can be managed through the use of fast-acting medication to treat acute attacks, and long-term control achieved using inhaled corticosteroids, sometimes in conjunction with a leukotriene antagonist, such as Montelukast.


Read the full article in Chemistry World»

Read the original journal article in Chemical Science – it’s free to access until 28th April:
Iron catalyzed enantioselective sulfa-Michael addition: a four-step synthesis of the anti-asthma agent Montelukast
James D. White and Subrata Shaw  
Chem. Sci., 2014, DOI: 10.1039/C4SC00051J

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Chemical Science welcomes Zhenan Bao as Associate Editor

This month, Chemical Science is delighted to welcome Zhenan Bao as Associate Editor in the area of organic materials. Zhenan received her PhD from the University of Chicago in 1995, and after a spell at Lucent Technologies’ Bell Labs, joined the Department of Chemical Engineering at Stanford University in 2004. She was appointed to her present position as Professor in 2012.

Zhenan was awarded the Beilby Medal and Prize by the Royal Society of Chemistry in 2009, for her contributions and discoveries in the field of organic semiconductors. These included demonstrating that conjugated polymers can produce high mobilities of charge carriers when self-assembled using solution deposition.

She also featured in Thomson Reuter’s ‘Top 100 Materials Scientists’ report in 2011, which identified researchers with the highest citation counts for papers published in 2000–2010.

The Bao Group’s research utilizes the basic principles in chemistry, physics and material sciences to enable novel applications and development of flexible, stretchable electronics and energy devices. Current research projects within the group include organic semi-conductor design, organic and carbon solar cells, and electronic skin.

The group has published work in a number of Royal Society of Chemistry journals, and you can read more about it in the following articles:

Probing interfacial molecular packing in TIPS-pentacene organic semiconductors by Surface enhanced Raman Scattering
Jie Xu, Ying Diao, Dongshan Zhou, Yisha Mao, Gaurav Giri, Wei Chen, Nan Liu, Stefan C B Mannsfeld, Gi Xue and Zhenan Bao  
J. Mater. Chem. C, 2014, Accepted Manuscript, DOI: 10.1039/C3TC32581D

Sequentially solution-processed, nanostructured polymer photovoltaics using selective solvents
Do Hwan Kim, Jianguo Mei, Alexander L. Ayzner, Kristin Schmidt, Gaurav Giri, Anthony L. Appleton, Michael F. Toney and Zhenan Bao  
Energy Environ. Sci., 2014, 7, 1103-1109, DOI: 10.1039/C3EE43541E, Paper

A review of fabrication and applications of carbon nanotube film-based flexible electronics
Steve Park, Michael Vosguerichian and Zhenan Bao  
Nanoscale, 2013, 5, 1727-1752, DOI: 10.1039/C3NR33560G

Confined organization of fullerene units along high polymer chains
Lei Fang, Peng Liu, Benjamin R. Sveinbjornsson, Sule Atahan-Evrenk, Koen Vandewal, Sílvia Osuna, Gonzalo Jiménez-Osés, Supriya Shrestha, Gaurav Giri, Peng Wei, Alberto Salleo, Alán Aspuru-Guzik, Robert H. Grubbs, K. N. Houk and Zhenan Bao  
J. Mater. Chem. C, 2013, 1, 5747-5755, DOI: 10.1039/C3TC31158A

5,11-Conjugation-extended low-bandgap anthradithiophene-containing polymer exhibiting enhanced thin-film order and field-effect mobility
Ying Jiang, Jianguo Mei, Alexander L. Ayzner, Michael F. Toney and Zhenan Bao  
Chem. Commun., 2012, 48, 7286-7288, DOI: 10.1039/C2CC32473C

Impact of regioregularity on thin-film transistor and photovoltaic cell performances of pentacene-containing polymers
Ying Jiang, Sanghyun Hong, Joon Hak Oh, Rajib Mondal, Toshihiro Okamoto, Eric Verploegen, Michael F. Toney, Michael D. McGehee and Zhenan Bao  
J. Mater. Chem., 2012, 22, 4356-4363, DOI: 10.1039/C2JM15483H

Graphene–sponges as high-performance low-cost anodes for microbial fuel cells
Xing Xie, Guihua Yu, Nian Liu, Zhenan Bao, Craig S. Criddle and Yi Cui  
Energy Environ. Sci., 2012, 5, 6862-6866, DOI: 10.1039/C2EE03583A

Zhenan is now accepting submissions to Chemical Science in the area of organic materials.  Submit your high-impact research to her Editorial Office.

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