acetic acid is described. Moreover, new [1]benzothieno[2,3(3,2)-f]indolizines were synthesized in one-pot from 2(3)-(2-formylpyrrol-1-ylmethyl)-[1]benzothiophene and with diethyl acetylenedicarboxylate (DEAD) they led regiospecifically to [3,2,2] cyclazines fused to a [1]benzothiophene ring by 1,3-dipolar cycloaddition reaction rather than Diels-Alder adducts.
描述了通过在
乙酸中热解,容易地从相应的羰基
叠氮化物容易地获得稠合的
三环吡咯并[1,2-a] [1]
苯并噻吩并[2,3-e] [1,4]二氮杂。此外,新的[1]
苯并噻吩并[2,3(3,2)-f]
吲哚并
咪唑由2(3)-(2-甲酰基
吡咯-1-基甲基)-[1]
苯并噻吩与
乙炔二
羧酸二
乙酯一锅合成(
DEAD),他们通过1,3-偶极环加成反应而不是Diels-Alder加合物,将区域特异性地导致[3,2,2]环嗪与[1]
苯并噻吩环稠合。