Enantioselective synthesis of α-branched α-hydroxy ketones via chiral N-sulfonyl-2-alkyl-2-cyano-1,3-oxazolidines
作者:Timm Harder、Thorsten Löhl、Michael Bolte、Kerstin Wagner、Dieter Hoppe
DOI:10.1016/0040-4039(94)85315-0
日期:1994.10
N-tosyl-phenylglycinol 4, afford with two sequential Grignard additions predominantly the tertiary alcohols 8. Electrochemical detosylation, followed by aqueous work up, yields enantiomerically enriched ketones 10.
立体化学均质的标题化合物6是由原酸酯和N-甲苯磺酰基-苯基甘氨醇4分两步制备的,提供了两个连续的格氏试剂,主要是叔醇8。电化学解毒,然后进行水后处理,产生对映体富集的酮10。