Heteroarylation of 6-Aryl-2,3-dihydroimidazo[2,1-<i>b</i>]thiazole with<i>N</i>-(Ethoxycarbonyl)heteroaromatic Salts
作者:Susan Shilcrat、Ivan Lantos、Michael Mcguire、Lendon Pridgen、Louisa Davis、Drake Eggleston、David Staiger、Lee Webb
DOI:10.1002/jhet.5570300634
日期:1993.12
The ethyl chloroformate salts of a variety of benzo-fused six membered π-deficient heteroaromatics, including quinoline, isoquinoline, 4-chloroquinoline, 3-bromoquinoline, phthalazine, and quinazoline, reacted with 6-aryl-2,3-dihydroimidazo[2,1-b]thiazole at the 5-position. The dihydroheteroaromatic adducts were oxidized by o-chloranil, sulfur, or electrochemical methodology to form the 5-heteroaromatic-6-aryl-2
各种苯并稠合六元π缺陷杂芳族化合物的氯甲酸乙酯盐,包括喹啉,异喹啉,4-氯喹啉,3-溴喹啉,酞嗪和喹唑啉,与6-芳基-2,3-二氢咪唑[2, 1- b ]噻唑在5-位。二氢杂芳族加合物通过邻氯苯甲醛,硫磺或电化学方法氧化,形成5-杂芳族-6-芳基-2,3-二氢咪唑并[2,1- b ]噻唑,10-15。在每个实例中,建立了杂芳环上加成的区域化学。