Copper and zinc co-catalyzed synthesis of imidazoles via the activation of sp3 C–H and N–H bonds
摘要:
An efficient and facile approach to synthesize imidazoles from amidines and arylketone via oxidative coupling of sp(3) C-H bond and N-H bond is reported. This strategy exhibits high performance in terms of regioselectivity with moderate to high yields by using easily available materials, and provides an alternative method to synthesize multi-substituted imidazole skeletons. (C) 2014 Elsevier Ltd. All rights reserved.
Methyltriphenylphosphoniumtribromide acts as an efficient mild dethioketalization reagent with high selectivity for 2-phenyl and 2-vinyl 1,3-dithiannes versus 2-alkyl 1,3-dithiannes and without any secondary brominationreaction of the investigated substrates. The reaction was also successful with trimethylphenylammonium tribromide.
Novel ethynylaryl compounds and derivatives are described. Their use in the treatment of inflammation is also disclosed.
描述了新颖的乙炔芳基化合物及其衍生物。同时还揭示了它们在炎症治疗中的用途。
Rao, A. V. Rama; Chanda, Bhanu M.; Borate, Hanumant B., Synthetic Communications, 1984, vol. 14, # 3, p. 257 - 264
作者:Rao, A. V. Rama、Chanda, Bhanu M.、Borate, Hanumant B.
DOI:——
日期:——
[EN] N1/N2-LACTAM ACETYL-CoA CARBOXYLASE INHIBITORS<br/>[FR] INHIBITEURS DE LA N1/N2-LACTAME ACÉTYL-COA CARBOXYLASE
申请人:PFIZER
公开号:WO2012056372A1
公开(公告)日:2012-05-03
The invention provides a compound of Formula (I); or a pharmaceutically acceptable salt thereof; wherein G is Formula (II), Formula (III), Formula (IV) and Formula (V) R1, R2 and R3 are as described herein; pharmaceutical compositions thereof; and the use thereof in treating diseases, conditions or disorders modulated by the inhibition of an acetyl-CoA carboxylase enzyme(s) in an animal.
Hydrogen-Bond-Directed Catalysis: Faster, Regioselective and Cleaner Heck Arylation of Electron-Rich Olefins in Alcohols
作者:Zeynab Hyder、Jiwu Ruan、Jianliang Xiao
DOI:10.1002/chem.200800411
日期:2008.6.20
A general method for the regioselective Heckreaction of electron-richolefins is presented. Fast, highly regioselective Pd-catalysed alpha-arylation of electron-richolefins, vinyl ethers (1 a-d), hydroxyl vinyl ethers (1 e, f), enamides (1 g, h) and a substituted vinyl ether (1i) has been accomplished with a diverse range of aryl bromides (2 a-r), for the first time, in cheap, green and easily available