Designing N-Heterocyclic Carbenes: Simultaneous Enhancement of Reactivity and Enantioselectivity in the Asymmetric Hydroacylation of Cyclopropenes
作者:Fan Liu、Xavier Bugaut、Michael Schedler、Roland Fröhlich、Frank Glorius
DOI:10.1002/anie.201106155
日期:2011.12.23
Faster, higher, stronger! The N‐heterocyclic carbene (NHC) catalyzed diastereo‐ and enantioselective hydroacylation of cyclopropenes affords structurally valuable acylcyclopropanes. A new family of electron‐rich, 2,6‐dimethoxyphenyl‐substituted NHCs induces excellent reactivity and enantioselectivity. Preliminary kinetic studies unambiguously demonstrated the superiority of this family of catalysts
更快更高更强!N-杂环卡宾(NHC)催化的环丙烯的非对映和对映选择性加氢酰化可提供结构上有价值的酰基环丙烷。一个新的富含电子的2,6-二甲氧基苯基取代的NHC家族可诱导出色的反应性和对映选择性。初步的动力学研究明确表明,在这一具有挑战性的转化过程中,该催化剂家族比已知的NHC更优越。