Chiral cyclopentadienyl Rh<sup>III</sup>-catalyzed enantioselective cyclopropanation of electron-deficient olefins enable rapid access to UPF-648 and oxylipin natural products
作者:Coralie Duchemin、Nicolai Cramer
DOI:10.1039/c8sc05702h
日期:——
Chiral cyclopentadienyl RhIII complexes efficiently catalyze enantioselective cyclopropanations of electron-deficient olefins with N-enoxysuccinimides as the C1 unit. Excellent asymmetric inductions and high diastereoselectivities can be obtained for a wide range of substrate combinations. The reaction proceeds under mild conditions without precautions to exclude air and water. Moreover, the synthetic
手性环戊二烯基 Rh III配合物可有效催化以N-烯氧基琥珀酰亚胺为 C1 单元的缺电子烯烃的对映选择性环丙烷化反应。对于广泛的底物组合可以获得优异的不对称诱导和高非对映选择性。反应在温和条件下进行,无需采取排除空气和水的措施。此外,通过氧脂素天然产物家族成员和 KMO 抑制剂 UPF-648 的简明合成,证明了所开发方法的合成实用性。