3-crotonoyl-5,5-dimethyl-2-oxazolidinone 、 1-chloro-3-methyl-butylaldehyde oxime 在
nickel(II) perchlorate hexahydrate 、 (R)-N,N'-bis(4-phenyl-2-quinolylmethylene)-1,1'-binaphthyl-2,2'-diamine 作用下,
以
二氯甲烷 为溶剂,
反应 13.0h,
生成 (4R,5R)-5-[(5,5-dimethyl-2-oxo-3-oxazolidinyl)carbonyl]-4-methyl-3-(2-methylpropyl)-4,5-dihydroisoxazole 、
(4S,5S)-5-[(5,5-dimethyl-2-oxo-3-oxazolidinyl)carbonyl]-4-methyl-3-(2-methylpropyl)-4,5-dihydroisoxazole 、 4-[(5,5-dimethyl-2-oxo-3-oxazolidinyl)carbonyl]-5-methyl-3-(2-methylpropyl)-4,5-dihydroisoxazole