5,5-dimethyl-3-[3-(ethoxycarbonyl)propenoyl]-2-oxazolidinone 、
benzohydroximoyl chloride 在
nickel(II) perchlorate hexahydrate 、 (R)-N,N'-bis[4-(3,5-xylyl)-2-quinolylmethylene]-1,1'-binaphthyl-2,2'-diamine 作用下,
以
二氯甲烷 为溶剂,
反应 3.0h,
生成 (4R,5SR)-5-[(5,5-dimethyl-2-oxo-3-oxazolidinyl)carbonyl]-4-ethoxycarbonyl-3-phenyl-4,5-dihydroisoxazole 、
(4S,5S)-5-[(5,5-dimethyl-2-oxo-3-oxazolidinyl)carbonyl]-4-ethoxycarbonyl-3-phenyl-4,5-dihydroisoxazole 、 4-[(5,5-dimethyl-2-oxo-3-oxazolidinyl)carbonyl]-5-ethoxycarbonyl-3-phenyl-4,5-dihydroisoxazole