Syntheses of new chiral bicyclic sultams and their use as auxiliaries in asymmetric conjugate addition of Grignard reagents
作者:Ugo Chiacchio、Antonino Corsaro、Giovanni Gambera、Antonio Rescifina、Anna Piperno、Roberto Romeo、Giovanni Romeo
DOI:10.1016/s0957-4166(02)00465-2
日期:2002.9
Starting from l-aminoacids, 5-N-unsubstituted isothiazolo[4,5-c]isoxazole 4,4-dioxides have been synthesized and used as chiral auxiliaries in asymmetric conjugated additions of Grignard reagents to α,β-unsaturated carboxylic acids.
从1-氨基酸开始,已经合成了5- N-未取代的异噻唑并[4,5 - c ]异恶唑4,4-二氧化物,并在格氏试剂向α,β-不饱和羧酸的不对称共轭加成中用作手性助剂。