DITHIOCARBOXYLIERUNGSREAKTIONEN VON <i>cis</i>-BICYCLO[3.3.0]OCTAN-3,7-DIONEN. MOLEKÜL- UND KRISTALLSTRUKTUR VON <i>cis</i>-2,6-BIS(DIMETHYLTHIO-METHYLEN)-BICYCLO[3.3.0]OCTAN-3,7-DION
作者:Wolfgang Dölling、Hans-Martin Siebel、Matthias Biedermann、Helmut Hartung
DOI:10.1080/10426509608046398
日期:1996.6.1
Abstract The cis-bicyclo[3.3.0]octane-3,7-dione 1a and its 1,5-dimethyl derivative 1b react with carbon disulfide, strong base and an alkylating agent in dipolar aprotic solvents giving racemic mixtures of 2-dialkylthio-methylene compounds 2, whereas in the presence of two equivalents of carbon disulfide and the appropriate amount of base and further alkylating agent the cis-2,6-bis(dimethylthio-methylene)
摘要 顺式双环 [3.3.0] 辛烷 3,7-二酮 1a 及其 1,5-二甲基衍生物 1b 与二硫化碳、强碱和烷基化剂在偶极非质子溶剂中反应,得到 2-二烷硫基的外消旋混合物。亚甲基化合物2,而在两当量的二硫化碳和适量的碱和进一步的烷基化剂存在下,形成顺式-2,6-双(二甲硫基-亚甲基)衍生物3。通过X射线分析研究了3a的晶体和分子结构。