Cyclocondensation of N-aryl-3-oxobutanethioamides with 5-amino-3-R-4-R1-pyrazoles
摘要:
The cyclocondensation products of N-aryl-3-oxobutanethioamides with 5-amino-3-R-4-R-1-pyrazoles are 4-(arylamino)-2-methyl-7-R-8-R-1-pyrazolo[1,5-a]pyrimidine and pyrazolo[1,5-a]pyrimidine-4-thione derivatives, the ratio of which depends on the nucleophilicity of the starting 5-amino-3-R-4-R-1-pyrazoles and the presence of a proton donor solvent.
Cyclocondensation of N-aryl-3-oxobutanethioamides with 5-amino-3-R-4-R1-pyrazoles
作者:V. N. Britsun
DOI:10.1007/s10593-009-0168-z
日期:2008.10
The cyclocondensation products of N-aryl-3-oxobutanethioamides with 5-amino-3-R-4-R-1-pyrazoles are 4-(arylamino)-2-methyl-7-R-8-R-1-pyrazolo[1,5-a]pyrimidine and pyrazolo[1,5-a]pyrimidine-4-thione derivatives, the ratio of which depends on the nucleophilicity of the starting 5-amino-3-R-4-R-1-pyrazoles and the presence of a proton donor solvent.