exclusively obtained. The resulting cyclopropylidene compounds are subjected to protonolysis or trapping with electrophiles in a one-pot to give the cyclopropyl silyl ketone derivatives in good yields. Acidic treatment of derived cyclopropyl silyl ketone allows isomerization to give the thermodynamically favorable trans form exclusively.
研究了
正丁基锂存在下甲
硅烷基环丙基
溴与二
氯甲基甲基醚的反应。在碱性反应条件下,仅获得相应的环亚丙基衍
生物。将得到的环亚丙基化合物进行质子分解或一锅中用亲电子试剂捕集,以高收率得到环丙基甲
硅烷基酮衍
生物。对衍生的环丙基甲
硅烷基酮进行酸性处理,可以进行异构化,从而独家获得热力学上有利的转化形式。