Dual Activation of Unsaturated Amides with Schwartz's Reagent: A Diastereoselective Access to Cyclopentanols and N,O‐Dimethylcyclopentylhydroxylamines.
作者:Aurélien Coelho、Mahasoa‐Salina Souvenir Zafindrajaona、Alexis Vallée、Jean‐Bernard Behr、Jean‐Luc Vasse
DOI:10.1002/chem.202103789
日期:2022.1.13
The concomitant generation of a nucleophilic and an electrophilic site from unsaturated Weinreb amide by using Cp2Zr(H)Cl) as the unique reagent was developed to promote a cyclisation reaction. The access to trans-2-substituted cyclopentanols or cyclopentylhydroxylamines can be selectively driven by a judicious choice of the cyclisation promotor. An access to cis-3-substituted is also described.
通过使用 Cp 2 Zr(H)Cl) 作为独特的试剂,开发了从不饱和 Weinreb 酰胺中同时产生亲核位点和亲电位点以促进环化反应。对环化促进剂的明智选择可以选择性地驱动获得反式-2-取代的环戊醇或环戊基羟胺。还描述了对顺式-3-取代的访问。