<i>trans</i>-1,2-Diaminocyclopentane-Based Catalyst for the Asymmetric Addition of Alkyl-, Aryl-, and Vinyl Groups to Ketones
作者:Patrick J. Walsh、Cecilia Anaya de Parrodi
DOI:10.1055/s-2004-832826
日期:——
The catalytic asymmetric addition of ethyl-, phenyl-, and 1-hexenyl groups to ketones is reported. The new catalyst, generated from titanium isopropoxide and a bis(sulfonamide) diol ligand based on trans-1,2-diaminocyclopentane, gives good to excellent enantioselectivities with a range of substrates.
报道了乙基-、苯基-和1-己烯基与酮的催化不对称加成。这种新型催化剂由异丙醇钛和基于反式-1,2-二氨基环戊烷的双(磺酰胺)二醇配体生成,对一系列底物具有良好到优异的对映选择性。