作者:C. Landreau、D. Deniaud、A. Reliquet、J. C. Meslin
DOI:10.1080/10426500214568
日期:2002.11.1
The reaction of 2-amino-4-dimethylamino-1-thia-3-azabutadienes 1 with alpha-bromoketones gave rise to 2-aminothiazoles 2 together with 2-(N,N-dimethylaminomethylenamino)thiazoles 3. Competitive mechanisms are described. Furthermore, reaction of diene 1a with,methyl a-bromoacetate or hydroxylrimine-O-sulfonic acid yielded respectively 2-(N,N-dimethylaminomethylenamino)thiazolin-4-one 4 and 5-amino-1,2,4-thiadiazole 5.