It was found that the reaction of 1,2,3-selenadiazoles derived from cyclic ketones with olefins or dienes was markedly promoted by a catalytic amount of tributylstannyl radical, which was generated in situ from tributylstannyl hydride or allyltributylstannane and AIBN, to give the corresponding dihydroselenophenes in moderate to good yields. In contrast, when 1,2,3-selenadiazoles prepared from linear
已发现,催化量的三
丁基锡烷基由三
丁基锡烷基
氢化物或
烯丙基三丁基锡烷和AIBN催化生成,从而显着促进了环状酮衍生的1,2,3-
硒代二唑与烯烃或二烯的反应。二氢
硒代苯中度到良好的产量。相反,当使用由线性和芳族酮制得的1,2,3-
硒代二唑作为底物时,没有发生相同的反应,
炔烃形成了唯一的产物。