Highly Enantioselective Hydrogenation of Itaconic Acid Derivatives with a Chiral Bisphospholane-Rh(I) Catalyst
作者:Juan Almena、Axel Monsees、Renat Kadyrov、Thomas H. Riermeier、Battsengel Gotov、Jens Holz、Armin Börner
DOI:10.1002/adsc.200404080
日期:2004.9
The new – commercially in multi-kg quantities available – chiral bisphospholane ligand, catASium® M, has been successfully used in the Rh(I)-catalysed enantioselective hydrogenation of itaconic acid derivatives. Chiral ß-substituted succinic acid derivatives were produced in good to excellent enantioselectivities. Turnover frequencies by up to 40,000 h−1 have been achieved.
新的-在商业上可用的多公斤量-手性配体bisphospholane,猫AS鎓®男,已成功地在的Rh(I) -催化的使用衣康酸衍生物的对映选择性氢化。手性ß-取代的琥珀酸衍生物的对映选择性很好。已实现高达40,000 h -1的周转频率。