Tandem homolytic addition/substitution sequences and their application to tin-free radical chemistry
作者:Sofia Lobachevsky、Carl H. Schiesser、Vijay Gupta
DOI:10.1016/j.tetlet.2007.10.139
日期:2007.12
selenides (3a, b, e and f), pent-4-enylseleno benzoate (3c) and phenyl (pent-4-enylseleno)formate (3d) act as precursors of alkyl, acyl and oxyacyl radicals by reaction with diethyl 2-phenylselenomalonate (1) under photochemical conditions in a process involving tandem homolytic addition/substitution to afford tetrahydroselenophenes (5, 11) and the corresponding phenylselenides (6).
戊烯基戊烯基硒化物(3a,b,e和f),苯甲酸戊烯基戊酯(3c)和苯基戊烯基戊酸酯(3d)通过以下方式充当烷基,酰基和氧酰基的前体用二-2- phenylselenomalonate(反应1中的处理条件的光化学涉及串联均裂除/置换,得到tetrahydroselenophenes(下)5,11)和相应的phenylselenides(6)。