Feed aggregator

Total synthesis of the cyclic monoterpenoid pyrano[3,2-a]carbazole alkaloids derived from 2-hydroxy-6-methylcarbazole

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6490-6499
DOI: 10.1039/C4OB01151A, PaperCemena Gassner, Ronny Hesse, Arndt W. Schmidt, Hans-Joachim Knolker
The synthesis of seven pyrano[3,2-a]carbazole alkaloids has been achieved using their putative biogenetic precursor 2-hydroxy-6-methylcarbazole as key intermediate.
The content of this RSS Feed (c) The Royal Society of Chemistry

Stereoselective one-pot synthesis of [small beta]-alkylsulfide enol esters. Base-triggered rearrangement under mild conditions

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6516-6526
DOI: 10.1039/C4OB01011F, PaperAdrian A. Heredia, Silvia M. Soria-Castro, Lydia M. Bouchet, Gabriela Oksdath-Mansilla, Cecilia A. Barrionuevo, Daniel A. Caminos, Fabricio R. Bisogno, Juan E. Arguello, Alicia B. Penenory
(Z)-Vinyl sulfides are easily synthesised through a multicomponent reaction. An intramolecular S,O-acyl migration accounts for the observed stereoselectivity.
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis of 3,3-disubstituted-2,3-dihydroazanaphthoquinones via simultaneous alkyne oxidation and nitrile hydration of ortho-alkynylarenenitriles

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6440-6446
DOI: 10.1039/C4OB00852A, PaperKaruppusamy Sakthivel, Kannupal Srinivasan
Simultaneous activation of alkynes and nitriles in o-alkynylarenenitriles in the presence of Pd(OAc)2/H2O/(+/-)-CSA afforded 3,3-disubstituted-2,3-dihydroazanaphthoquinones in moderate to excellent yields.
The content of this RSS Feed (c) The Royal Society of Chemistry

C-H arylation of azaheterocycles: a direct ligand-free and Cu-catalyzed approach using diaryliodonium salts

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6340-6344
DOI: 10.1039/C4OB01061B, CommunicationDalip Kumar, Meenakshi Pilania, V. Arun, Savita Pooniya
An efficient and high yielding Cu-catalyzed direct C-H arylation of oxadiazoles, thiadiazoles, benzoxazoles and benzothiazoles has been achieved by employing easily accessible diaryliodonium salts.
The content of this RSS Feed (c) The Royal Society of Chemistry

P,N,N-Pincer nickel-catalyzed cross-coupling of aryl fluorides and chlorides

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6414-6424
DOI: 10.1039/C4OB01041H, PaperDan Wu, Zhong-Xia Wang
P,N,N-Pincer nickel was demonstrated to effectively catalyze cross-coupling of aryl fluorides and chlorides with aryl magnesium or zinc reagents.
The content of this RSS Feed (c) The Royal Society of Chemistry

A "click" chemistry constructed affinity system for 2-oxoglutaric acid receptors and binding proteins

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6470-6475
DOI: 10.1039/C4OB01005A, PaperYang Wang, Zeinab Assaf, Xinjun Liu, Fabio Ziarelli, Amel Latifi, Otmane Lamrabet, Gilles Quelever, Fanqi Qu, Cheng-Cai Zhang, Ling Peng
An ingenious and robust affinity resin to capture the 2-oxoglutaric acid binding proteins was constructed via "click" chemistry and validated using a known 2-OG receptor in cell lysate.
The content of this RSS Feed (c) The Royal Society of Chemistry

Facile access to amides and hydroxamic acids directly from nitroarenes

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6465-6469
DOI: 10.1039/C4OB01155D, PaperShreyans K. Jain, K. A. Aravinda Kumar, Sandip B. Bharate, Ram A. Vishwakarma
Herein, we report a new method for synthesis of amides and hydroxamic acids directly from nitroarenes and aldehydes.
The content of this RSS Feed (c) The Royal Society of Chemistry

Synthesis and properties of oligonucleotides modified with 2[prime or minute]-O-(2-carboxyethyl)nucleotides and their carbamoyl derivatives

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6457-6464
DOI: 10.1039/C4OB01260G, PaperTakeshi Yamada, Yoshiaki Masaki, Natsuki Okaniwa, Takashi Kanamori, Akihiro Ohkubo, Hirosuke Tsunoda, Kohji Seio, Mitsuo Sekine
2[prime or minute]-O-Methyl oligoribonucleotides with four kinds of 2[prime or minute]-O-modified uridine derivatives were synthesised.
The content of this RSS Feed (c) The Royal Society of Chemistry

Multicomponent reaction of chalcones, malononitrile and DMF leading to [gamma]-ketoamides

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6389-6392
DOI: 10.1039/C4OB00971A, PaperEnxiang Wei, Bing Liu, Shaoxia Lin, Fushun Liang
An efficient synthesis of [gamma]-ketoamides was developed by the one-pot multicomponent reaction of chalcones, malononitrile and DMF (as both the reactant and solvent) in the presence of NaOH (3.0 equiv.). The reaction features high atom economy, easily available starting materials, operational simplicity, and good tolerance with diverse functional groups.
The content of this RSS Feed (c) The Royal Society of Chemistry

Tautomerisation of thymine acts against the Huckel 4N + 2 rule. The effect of metal ions and H-bond complexations on the electronic structure of thymine

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6476-6483
DOI: 10.1039/C4OB00964A, PaperOlga A. Stasyuk, Halina Szatylowicz, Tadeusz M. Krygowski
Not necessarily the [small pi]-electron delocalization is responsible for the stability of thymine tautomers.
The content of this RSS Feed (c) The Royal Society of Chemistry

Rational design of a new fluorescent 'ON/OFF' xanthene dye for phosphate detection in live cells

Org. and Biomol. Chem. - 10 August, 2014 - 14:54

Org. Biomol. Chem., 2014, 12,6432-6439
DOI: 10.1039/C4OB00951G, PaperA. Martinez-Peragon, D. Miguel, A. Orte, A. J. Mota, M. J. Ruedas-Rama, J. Justicia, J. M. Alvarez-Pez, J. M. Cuerva, L. Crovetto
A new fluorescein derivative with ON/OFF features, 9-[1-(4-tert-butyl-2-methoxyphenyl)]-6-hydroxy-3H-xanthen-3-one (Granada Green, GG), was designed and synthesised.
The content of this RSS Feed (c) The Royal Society of Chemistry

Cu2O Template Synthesis of High-Performance PtCu Alloy Yolk-Shell Cube Catalysts for Direct Methanol Fuel Cells

Chem. Commun. - 9 August, 2014 - 18:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC04108A, CommunicationSheng-Hua Ye, Xu-Jun He, Liang-Xin Ding, Zheng-Wei Pan, Ye-Xiang Tong, mingmei Wu, Gao-Ren Li
Cu2O yolk-shell cubes are firstly fabricated via combining ZnO-assisted electrodeposition with Ostwald ripening and their formation mechanism is studied. Then novel PtCu alloy yolk-shell cubes were fabricated via the disproportionation...
The content of this RSS Feed (c) The Royal Society of Chemistry

From historic review to horizon beyond: Lithium-Sulphur batteries run on the wheels

Chem. Commun. - 9 August, 2014 - 18:54
Chem. Commun., 2014, Accepted Manuscript
DOI: 10.1039/C4CC05109B, Feature ArticleRenjie Chen, Teng Zhao, Feng Wu
In terms of sustainable development and environmental issues, design and fabrication of efficient energy storage device will be more critical in the future than at any time in the past....
The content of this RSS Feed (c) The Royal Society of Chemistry

Nickel-Catalyzed Decarboxylative C–P Cross-Coupling of Alkenyl Acids with P(O)H Compounds

J. Org. Chem. - 8 August, 2014 - 20:51

TOC Graphic

The Journal of Organic ChemistryDOI: 10.1021/jo501321m

Synthesis and Accumulation of Aromatic Aldehydes in an Engineered Strain of Escherichia coli

J. Am. Chem. Soc. - 8 August, 2014 - 20:49

TOC Graphic

Journal of the American Chemical SocietyDOI: 10.1021/ja506664a

Adsorption of Small Hydrocarbons on the Three-Fold PdGa Surfaces: The Road to Selective Hydrogenation

J. Am. Chem. Soc. - 8 August, 2014 - 20:48

TOC Graphic

Journal of the American Chemical SocietyDOI: 10.1021/ja505936b

WebElements: the periodic table on the WWW [http://www.webelements.com/]

Copyright 1993-2011 Mark Winter [The University of Sheffield and WebElements Ltd, UK]. All rights reserved.