作者:Yutaka Nishiyama*、Yasunobu Hada、Kuniko Iwase、Noboru Sonoda*
DOI:10.1016/s0022-328x(00)00484-8
日期:2000.10
treated with an excess amount of olefins at 130°C, the addition of a vinyl radical, which was generated in situ by the denitrogenation of 1,2,3-selenadiazoles, to a carbon–carbon double bond followed by intramolecular cyclization proceeded efficiently giving the corresponding dihydroselenophenenes in moderate to good yields along with the formation of the corresponding 1,4-diselenins and selenophenes
当在130°C下用过量的烯烃处理由环状酮合成的1,2,3-硒代二唑时,会添加乙烯基,该乙烯基是通过1,2,3-硒代二唑进行脱氮而原位生成的。碳-碳双键随后分子内环化有效地进行,从而以中等至良好的收率得到了相应的二氢硒代苯烯,并形成了相应的副产物1,4-二硒代和硒代苯。在该反应中,在1,2,3-硒代二唑的合成中用作起始原料的酮的环上的碳原子数对产物的选择性起着重要作用。与由环状酮制得的1,2,3-硒代二唑的反应相反,在1,2的反应中,