Asymmetric Allylation Catalyzed by Chiral Phosphoric Acids: Stereoselective Synthesis of Tertiary Alcohols and a Reagent‐Based Switch in Stereopreference
作者:Mattia Lazzarotto、Peter Hartmann、Jakob Pletz、Ferdinand Belaj、Wolfgang Kroutil、Stefan E. Payer、Michael Fuchs
DOI:10.1002/adsc.202100037
日期:2021.6.21
The substrate scope of the asymmetric allylation with zinc organyls catalyzed by 3,3-bis(2,4,6-triisopropylphenyl)-1,1-binaphthyl-2,2-diyl hydrogenphosphate (TRIP) has been extended to non-cyclic ester organozinc reagents and ketones. Tertiary chiral alcohols are obtained with ee's up to 94% and two stereogenic centers can be created. Compared to the previous lactone reagent the stereopreference switches
3,3-双(2,4,6-三异丙基苯基)-1,1-联萘基-2,2-二基磷酸氢盐(TRIP)催化有机基锌不对称烯丙基化的底物范围已扩展到非环酯有机锌试剂和酮。获得的手性叔醇的 ee 高达 94%,并且可以创建两个立体中心。与之前的内酯试剂相比,立体偏好几乎完全转变,证明有机金属化合物的性质对于产物的不对称性非常重要。