Regio- and Enantioselective Palladium-Catalyzed Allylic Alkylation of Nitromethane with Monosubstituted Allyl Substrates: Synthesis of (<i>R</i>)-Rolipram and (<i>R</i>)-Baclofen
作者:Xiao-Fei Yang、Chang-Hua Ding、Xiao-Hui Li、Jian-Qiang Huang、Xue-Long Hou、Li-Xin Dai、Pin-Jie Wang
DOI:10.1021/jo301506p
日期:2012.10.19
The Pd-catalyzed asymmetric allylic alkylation (AAA) reaction of nitromethane with monosubstituted allyl substrates was realized for the first time to provide corresponding products in high yields with excellent regio- and enantioselectivities. The protocol was applied to the enantioselective synthesis of (R)-baclofen and (R)-rolipram.
首次实现了Pd催化的硝基甲烷与单取代的烯丙基底物的不对称烯丙基烷基化(AAA)反应,以高收率提供相应的产物,具有良好的区域和对映选择性。该方案应用于(R)-baclofen和(R)-咯利普兰的对映选择性合成。