2,5-二甲基-2,4-己二烯 、
L-menthyl diazoacetate 在
complex of copper(II) trifluoromethanesulfonate and (1S,2S)-N,N'-di(mesitylmethyl)-1,2-diphenyl-1,2-ethanediamine 作用下,
以
1,2-二氯乙烷 为溶剂,
生成 (1S)-trans (l)-menthyl 2,2-dimethyl-3-(2-methyl-1-propenyl)-1-cyclopropanecarboxylate 、
(1R)-trans (l)-menthyl 2,2-dimethyl-3-(2-methyl-1-propenyl)-1-cyclopropanecarboxylate 、 cis (l)-menthyl 2,2-dimethyl-3-(2-methyl-1-propenyl)-1-cyclopropanecarboxylate