[3+1+1] type cyclization of ClCF<sub>2</sub>COONa for the assembly of imidazoles and tetrazoles <i>via in situ</i> generated isocyanides
作者:Ya Wang、Yao Zhou、Qiuling Song
DOI:10.1039/d0cc01919d
日期:——
A facile synthesis of imidazoles and tetrazoles via [3+1+1] type cyclization of ClCF2COONa is developed. A diverse array of imidazoles and tetrazoles were obtained in decent yields via isocyanide intermediates. Notably, this is the first example of the cycloaddition of in situ generated isocyanides.
[EN] N- CYCLOPROPYL - N- PIPERIDINYLBENZAMIDES AS GPR119 MODULATORS<br/>[FR] N-CYCLOPROPYL-N-PIPÉRIDINYLBENZAMIDES EN TANT QUE MODULATEURS DE GPR119
申请人:BOEHRINGER INGELHEIM INT
公开号:WO2012123449A1
公开(公告)日:2012-09-20
The present invention relates to compounds of general formula I, wherein the groups R1, LP, LQ, Ar, mand n are as defined in the application, which have valuable pharmacological properties, and in particular bind to the GPR119 receptor and modulate its activity.
Indium triflate-catalyzed one-pot synthesis of 1-substituted-1H-1,2,3,4-tetrazoles under solvent-free conditions
作者:Dhiman Kundu、Adinath Majee、Alakananda Hajra
DOI:10.1016/j.tetlet.2009.03.131
日期:2009.6
A simple, efficient, and general method has been developed for the synthesis of 1-substituted-1H-1,2,3,4-tetrazoles via a three-component condensation of amine, trimethyl orthoformate, and sodium azide in presence of a catalytic amount of indium triflate under solvent-free conditions. The reaction proceeds smoothly to generate the corresponding 1-substituted tetrazoles in moderate to excellent yields under heating. (C) 2009 Elsevier Ltd. All rights reserved.