A short and stereospecific route to cis-1,2-divinyl compounds from derivatives of the readily available 3,3-dioxide (1) of 3-thiabicyclo[3.2.0]heptane-6,7-dicarboxylic anhydride by cheleotropic elimination of SO2 is reported.
从三
硫代双环[3.2.0]
庚烷-6,7-二
羧酸酐的3,3-二氧化物(1)的衍
生物中通过趋同性消除SO而制得的短而立体定向的路线,可生成顺式-1,2-二
乙烯基化合物报告2。