Asymmetric Addition of Diethylzinc to Ketones promoted by Tartaric Acid Derivatives
摘要:
The preparation of new sulfonamide ligands derived from L-tartaric acid and camphor sulfonyl chloride are described. The employment in the titanium tetraisopropoxide-promoted enantioselective addition of diethylzinc to ketones has been studied. The best enantiomeric excess is up to 99% with 7mol% catalyst loading at room temperature.
Asymmetric Addition of Diethylzinc to Ketones promoted by Tartaric Acid Derivatives
摘要:
The preparation of new sulfonamide ligands derived from L-tartaric acid and camphor sulfonyl chloride are described. The employment in the titanium tetraisopropoxide-promoted enantioselective addition of diethylzinc to ketones has been studied. The best enantiomeric excess is up to 99% with 7mol% catalyst loading at room temperature.
Asymmetric Addition of Diethylzinc to Ketones promoted by Tartaric Acid Derivatives
作者:Ailing Hui、Jintang Zhang、Zhiyong Wang
DOI:10.1080/00397910802139304
日期:2008.6.27
The preparation of new sulfonamide ligands derived from L-tartaric acid and camphor sulfonyl chloride are described. The employment in the titanium tetraisopropoxide-promoted enantioselective addition of diethylzinc to ketones has been studied. The best enantiomeric excess is up to 99% with 7mol% catalyst loading at room temperature.