4-(trifluoromethyl)benzonitrile oxide 、
(3-methyloxetan-3-yl)methyl (2E)-but-2-enoate 以
二氯甲烷 为溶剂,
生成 (3-methyloxetan-3-yl)-methyl 5-methyl-3-(4-trifluoromethylphenyl)-4,5-dihydroisoxazole-4-carboxylate 、 (3-methyloxetan-3-yl)-methyl 4-methyl-3-(4-trifluoromethylphenyl)-4,5-dihydroisoxazole-5-carboxylate