5-tert-Butoxycarbonylamino-3,5-dimethyl-6-nitro-cyclohex-3-enecarboxylic acid methyl ester 在
1,8-diazabicyclo [5.4.0] undec-4-ene 作用下,
以
苯 为溶剂,
反应 6.0h,
以6.799 g的产率得到3-(tert-butoxycarbonylamino)-3,5-dimethylcyclohexa-1,4-dienecarboxylic acid methyl ester