Anomalous Ring Cleavage of 1,3-Dithiole- and 1,3-Diselenole-2-thiones under the Cross-Coupling Conditions Using Triethyl Phosphite
作者:Masahiko Iyoda、Ryoji Watanabe、Yosihiro Miyake
DOI:10.1246/cl.2004.570
日期:2004.5
The ringcleavage of 4,5-ethylenedioxy-1,3-dithiole- and - 1,3-diselenole-2-thiones, followed by the reaction with 4,5-bis(methoxycarbonyl)-1,3-diselenole-2-one took place under the phosphite-mediated cross-coupling conditions to afford 2-thioxo- and 2-(selenoxomethylidene)-1,3-diselenoles. The structure of 4,5-bis(methoxycarbonyl)-2-(thioxoalkylidene)-1,3-diselenole was confirmed by X-ray analysis