Irradiation of thioxanthenethione 1 with the alkyl- and alkoxysubstituted butatrienes 2a-d gives the thietanes 3a-d the cyclobutanethione 6 is formed as a byproduct. Free radical addition of iC3H7SH to 2a predominantly occurs via terminal attack of the thiyl radical on the π-system.
用烷基和烷氧基取代的
丁二烯2a -d辐照
噻吨并
噻吩酮1,得到
硫杂
环丁烷3a -d,形成
环丁烷硫酮6作为副产物。i C 3 H 7 SH自由基加成到2 a的过程主要是通过巯基自由基在π系统上的末端进攻而发生的。