The reactions of 2-aminothiazoles and 2-aminobenzothiazoles with propiolic acid and its esters
作者:D. W. Dunwell、D. Evans
DOI:10.1039/j39710002094
日期:——
The main products from the title reactions were 7H-thiazolo[3,2-a]pyrimidin-7-ones (IV) and 2H-pyrimido-[2,1-b]benzothiazol-2-ones (V). Treatment of some of these with primary and secondary aliphatic amines yielded 2-(β-aminoacryloyl)imino-Δ4-thiazolines (X) and the corresponding benzo-analogues (XI).
标题反应的主要产物是7 H-噻唑并[3,2 - a ]嘧啶-7-酮(IV)和2 H-嘧啶-[ 2,1- b ]苯并噻唑-2-酮(V)。其中一些的伯和仲脂族胺处理得到2-(β-aminoacryloyl)亚氨基Δ 4 -thiazolines(X)和相应的苯并类似物(XI)。