Formation of 2-Methylene-1,3-oxathiole Derivatives in the Rhodium(II) Acetate-Catalyzed Reaction of α -Diazocarbonyl Compounds with Carbon Disulfide
作者:Hirofumi Nakano、Toshikazu Ibata
DOI:10.1080/10426500902856313
日期:2009.5.14
The rhodium(II) acetate-catalyzed reaction of α -diazocarbonyl compound with carbon disulfide gave 1,3-oxathiole-2-thione, 2-methylene-1,3-oxathiole, and 2,2′ -spirobis(1,3-oxathiole) derivatives depending on the substituent on the diazo compounds via 1,5- or 1,3-electrocyclization of thiocarbonyl ylide intermediate formed by the reaction of rhodium carbenoid with thiocarbonyl group.
α-重氮羰基化合物与二硫化碳的乙酸铑 (II) 催化反应得到 1,3-oxathiole-2-thone、2-methylene-1,3-oxathiole 和 2,2'-spirobis(1,3- oxathiole) 衍生物取决于重氮化合物上的取代基,通过 1,5- 或 1,3- 电环化硫代羰基叶立德中间体,该中间体由铑卡宾与硫代羰基反应形成。