4-Amino-3-mercapto-4<i>H</i>-1,2,4-triazoles and propargyl aldehydes: A new route to 3-<i>R</i>-8-aryl-1,2,4-triazolo[3,4-<i>b</i>]-1,3,4-thiadiazepines
作者:Ned D. Heindel、Jack R. Reid
DOI:10.1002/jhet.5570170547
日期:1980.7
mercapto groups on 4-amino-3-mercapto-4H-4H-1,2,4-triazoles can be cyclized by phenylpropargyl aldehydes. The aldehydes experience Michael addition of the SH to the alkyne linkage and imine formation between the NH2 and the aldehyde carbonyl to produce 3-R-8-aryl-1,2,4-triazolo[3,4-b]-1,3,4-thiadiazepines.
4-氨基-3-巯基-4 H -4 H -1,2,4-三唑上的氨基和巯基侧基可被苯基炔丙基醛环化。醛类会经历SH到炔键的迈克尔加成反应以及NH 2和醛羰基之间的亚胺形成,从而产生3- R -8-芳基-1,2,4-三唑并[3,4- b ] -1, 3,4-噻二氮杂.。