Preparation, Characterization and Stereochemistry of 2-Methyl-2-silabicyclo[2.2.1]heptane Derivatives
作者:Akira Hosomi、Masashi Mikami、Hideki Sakurai
DOI:10.1246/bcsj.56.2784
日期:1983.9
A new class of bicyclic compounds containing a single silicon atom at the bridge, 2-exo- and endo-substituted 2-methyl-2-silabicyclo[2.2.1]heptanes, have been prepared from the corresponding 3-cyclopentenyl-methylhydrosilane by the intramolecular hydrosilylation catalyzed by chloroplatinic acid, and their structures were unquivocally assigned by 1H and 13C NMR spectra. Dramatic crossover from inversion
由相应的 3-环戊烯基-甲基氢硅烷制备了一类在桥上含有单个硅原子的新型双环化合物,即 2-外-和内-取代的 2-甲基-2-硅杂双环[2.2.1]庚烷。由氯铂酸催化的分子内氢化硅烷化,其结构由 1H 和 13C NMR 光谱明确指定。在氯硅烷与苯基锂和苯基溴化镁在乙醚中的苯基化反应中发现了从转化到保留的剧烈交叉。已经观察到在相转移催化剂的存在下,由苯基(溴二氯甲基)汞或氯仿和氢氧化钠生成的二氯卡宾的区域选择性和立体选择性插入到 2-硅烷基冰片烷的 C(6)-H(exo) 键中。