Studies of heterocyclic compounds. Part IV. Electrophilic substitution of 6-methylpyrrolo[2,1-b]thiazole
作者:S. McKenzie、B. B. Molloy、D. H. Reid
DOI:10.1039/j39660001908
日期:——
The electrophilic substitution of 6-methylpyrrolo[2,1-b]thiazole has been studied quantitatively. Acetylation, formylation, trifluoroacetylation, and nitrosation occur exclusively at position 5. Further reaction gives 5,7-disubstitution products. Tritylation gives mainly 5,7-ditrityl- and 5-trityl- together with some 7-trityl-6-methyl-pyrrolo[2,1-b]thiazole.
已经对6-甲基吡咯并[2,1- b ]噻唑的亲电取代进行了定量研究。乙酰化,甲酰化,三氟乙酰化和亚硝化仅在位置5发生。进一步的反应产生5,7-二取代产物。三酰化作用主要产生5,7-二苯甲基-和5-三苯甲基-以及一些7-三苯甲基-6-甲基-吡咯并[2,1- b ]噻唑。