作者:Zili Chen、Wennan Xiong、Biao Jiang
DOI:10.1039/b206868k
日期:2002.9.11
A new Lewis acid, Zn(ODf)2, was first prepared from commercially available 3,3,4,4-tetrafluoro[1,2]oxathietane 2,2-dioxide in four steps with 56% yields and also was applied to catalyze highly enantioselective alkynylation of aldehydes in the presence of ligand (1S,2S)-3-(tert-butyldimethylsilyloxyl)-2-N,N-dimethylamino-1-(p-nitrophenyl)propane-1-ol or ligand (−)-N-methylephedrine to afford the corresponding propargylic alcohols in high yields with up to 99% ee.
一种新型路易斯酸Zn(ODf)2首次通过商购的3,3,4,4-四氟[1,2]氧硫杂环己烷2,2-二氧化物经四步反应以56%的产率制备得到,并被应用于催化醛的高度对映选择性炔基化反应,在配体(1S,2S)-3-(叔丁基二甲基硅氧基)-2-N,N-二甲基氨基-1-(对硝基苯基)丙烷-1-醇或配体(-)-N-甲基麻黄碱的存在下,以高产率得到相应的炔丙醇,对映体过量率高达99% ee。