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。
Synthesis of amides through an oxidative amidation of tetrazoles with aldehydes under transition-metal-free conditions
作者:Juan Du、Kai Luo、Xiuli Zhang
DOI:10.1039/c4ra07658c
日期:——
A simple, inexpensive and efficient one-pot synthesis of amides was achieved in good yields via the direct oxidativeamidation of tetrazoles with aldehydes under transition-metal-free conditions.
ALKOXYTETRAZOL-1-YLBENZALDEHYDE COMPOUND AND PROCESS FOR PRODUCING THE SAME
申请人:TOYO KASEI KOGYO COMPANY LIMITED
公开号:EP1650198A1
公开(公告)日:2006-04-26
The present invention relates to a process for producing an alkoxy-(tetrazol-1-yl)benzaldehyde compound represented by Formula (2):
wherein A1 is an alkoxy group, and A2 is a hydrogen atom, alkyl group or fluorine-substituted alkyl group, the process comprising reacting a 1-(alkoxyphenyl)-1H-tetrazole compound represented by Formula (1):
wherein A1 and A2 are as defined above, with hexamethylenetetramine in a sulfonic acid solvent, followed by hydrolysis. According to the present invention, an alkoxy-(tetrazol-1-yl)benzaldehyde compound can be safely and efficiently produced by formylating a 1-(alkoxyphenyl)-1H-tetrazole compound.
Alkoxy-(tetrazol-1-yl)benzaldehyde compound and process for producing the same
申请人:Hagiya Kazutake
公开号:US20070060630A1
公开(公告)日:2007-03-15
The present invention relates to a process for producing an alkoxy-(tetrazol-1-yl)benzaldehyde compound represented by Formula (2):
wherein A
1
is an alkoxy group, and A
2
is a hydrogen atom, alkyl group or fluorine-substituted alkyl group, the process comprising reacting a 1-(alkoxyphenyl)-1H-tetrazole compound represented by Formula (1):
wherein A
1
and A
2
are as defined above, with hexamethylenetetramine in a sulfonic acid solvent, followed by hydrolysis. According to the present invention, an alkoxy-(tetrazol-1-yl)benzaldehyde compound can be safely and efficiently produced by formylating a 1-(alkoxyphenyl)-1H-tetrazole compound.