Preparation and synthetic utility of 3-(benzotriazol-1-ylmethyl)areno- and -hetareno[b]thiophenes
作者:Alan R. Katritzky、Vladimir Y. Vvedensky、Dmytro O. Tymoshenko
DOI:10.1039/b008612f
日期:——
3-(Functionalized-methyl)- and 3-alkenylareno(hetareno)[b]thiophenes 13–16 are prepared via the side chain elaboration of 3-(benzotriazol-1-ylmethyl)thiophenes 10d–f,h, readily available from the condensation of 1-benzotriazolyl-3-chloroacetone 7 with aromatic or heteroaromatic thiols followed by dehydrative cyclization of 1-(benzotriazol-1-yl)-3-[aryl(hetaryl)thio]acetones 9d–f,h.
3-(功能化甲基)-和3-烯基芳烃(杂芳烃)[b]噻吩 13–16 通过对 3-(苯并三唑-1-基甲基)噻吩 10d–f,h 的侧链改造制备而成,后者可以通过 1-苯并三唑基-3-氯乙酮 7 与芳香或杂芳香硫醇的缩合反应获得,然后再通过 1-(苯并三唑-1-基)-3-[芳基(杂芳基)硫]乙酮 9d–f,h 的脱水环化反应进一步转化。