Direct enantioselective vinylogous Mannich‐type reactions of acyclic enals: New experimental insights into the
<i>E/Z</i>
‐dilemma
作者:Michela Vargiu、Lucilla Favero、Andrea Menichetti、Valeria Di Bussolo、Fabio Marchetti、Gennaro Pescitelli、Sebastiano Di Pietro、Mauro Pineschi
DOI:10.1002/chir.23077
日期:2019.7
The direct heterofunctionalization of acyclic α,β‐unsaturated aldehydes with N‐acylquinolinium ions contemplating the formation of two stereocentres is studied using dienamine catalysis. This work gives some new experimental insights on the remote stereocontrol in dienamine catalysis using unbiased aliphatic systems and large electrophiles, pointing to a (Z)‐preference of the reactive configuration
使用二烯胺催化研究了无环α,β-不饱和醛与N-酰基喹啉鎓离子的直接杂官能化,从而考虑了两个立体中心的形成。这项工作提供了一些关于使用无偏脂肪族体系和大型亲电试剂进行二烯胺催化的远程立体控制的实验性新见解,并指出了第二个双键的反应性构型的(Z)偏好。