作者:Christophe M. Saudan、Aurélien Berrocosa、Julie Quintaine、Stéphanie Spoehrle、Laurent Maggi、Hervé Mosimann、Lionel Saudan
DOI:10.1002/cctc.202200671
日期:2022.9.20
Phosphane Ligands: Large bite angle made the difference in directing group free site selective hydrogenation of dienals into γ,δ-unsaturated aldehydes a formal Claisen rearrangement product. Low loading of rhodium catalyst, high regio- and chemoselectivity, high yield and mild reaction condition of temperature (rt to 60 °C) and hydrogen pressure (10 to 50 bar) characterized this reaction.
磷烷配体:大咬合角使二烯醛在引导基团自由位点选择性氢化为 γ,δ-不饱和醛方面的差异成为正式的克莱森重排产物。低负载的铑催化剂、高区域和化学选择性、高产率和温和的温度(室温至 60 °C)和氢气压力(10 至 50 bar)的反应条件是该反应的特征。