Catalytic hydrogenation of the title compound proceeds from the site anti to the 7-methyl group to give the cis-dimethyl derivative; a possible stereoelectronic effect accounting for this selectivity is proposed based on the conformational analysis of the substrate by X-ray crystallography.
标题化合物的催化氢化从反式位点开始,经过7-甲基基团,生成顺式二甲基衍
生物;根据X射线晶体学对底物的构象分析,提出了可能产生这种选择性的立体电子效应。