作者:Kiyoshi Sato、Takamichi Yamagishi、Sadao Arai
DOI:10.1002/jhet.5570370453
日期:2000.7
9-(arylvinyl)thieno[3,2-a]- and 9-(arylvinyl)thieno[2,3-a]quinolizinium salts (4a-c and 5a-c), respectively, which underwent photocyclization to give a series of novel hetero[5]helicenes (6a,b and 7a-d) containing quinolizinium and thiophene rings.
噻吩并[3,2- a ]-和噻吩并[2,3- a ]-喹啉鎓盐(2b和3b)的9-甲基衍生物与适当的芳醛的Knoevenagel缩合反应生成9-(芳基乙烯基)噻吩并[3,2 -一个] -和9-(芳基乙烯基)噻吩并[2,3-一个] quinolizinium盐(4a-c中和5A-C ),分别,其后行photocyclization,得到一系列新的杂环[5] helicenes(6A,6B和7a-d)含有喹啉鎓和噻吩环。