Self-condensation of arylthioacetamides: novel syntheses of 3-aminothioacrylamides, 2,4-diaminothiophenes and four-membered-ring vinamidinium salts
作者:Andreas Rolfs、J�rgen Liebscher
DOI:10.1039/c39940001437
日期:——
Self-condensation of arylthioacetmorpholides 1 in the presence of N,N-disubstituted amides 2 and POCl3 gave 2-aryl-3-benzyl-3-morpholinothioacrylamides 4, which were converted to four-membered-ring vinamidinium salts 5 or 2,4-dimorpholino-3,5-diarylthiophenes 6 by novel synthesis of the thiophene ring.
芳基硫代乙酰吗啉 1 在 N,N-二取代酰胺 2 和 POCl3 存在下自缩合得到 2-芳基-3-苄基-3-吗啉代硫代丙烯酰胺 4,将其转化为四元环维脒盐 5 或 2,4-通过噻吩环的新颖合成得到二吗啉代-3,5-二芳基噻吩 6。