Indium triflate-catalyzed one-pot synthesis of 1-substituted-1H-1,2,3,4-tetrazoles under solvent-free conditions
摘要:
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.
A Stereocontrolled 1,2-Addition Reaction of Tetrazoles with Alkyl Propiolates for the Synthesis of Highly Functionalized Enamines
作者:Kai Luo、Lingguo Meng、Yicheng Zhang、Xiuli Zhang、Lei Wang
DOI:10.1002/adsc.201200868
日期:2013.3.11
2‐addition reaction of 1‐aryl‐1H‐tetrazoles with alkyl propiolates for the synthesis of highly functionalized enamines was developed. In the presence of silver oxide (Ag2O), the 1,2‐addition reaction generated (Z)‐N‐cyano enamines in good yields with exclusive formation of the Z‐isomers. Meanwhile, the 1,2‐addition reaction generated (E)‐N‐cyano enamines in the presence of Ag2O and potassium carbonate
开发了一种立体控制的1-芳基-1 H-四唑与丙酸烷基酯的1,2-加成反应,用于合成高度官能化的烯胺。在存在氧化银(Ag 2 O)的情况下,1,2加成反应生成的(Z)-N-氰基烯胺的收率很高,并且会独家形成Z-异构体。同时,在存在Ag 2 O和碳酸钾(K 2 CO 3)的情况下,1,2加成反应生成(E)-N-氰基烯胺,且立体选择性高,收率高。
COT MODULATORS AND METHODS OF USE THEREOF
申请人:Gilead Sciences, Inc.
公开号:US20170008873A1
公开(公告)日:2017-01-12
The present disclosure relates generally to modulators of Cot (cancer Osaka thyroid) and methods of use and manufacture thereof.