5-allyloxy-4-(allyl-phenyl-amino)-3-methyl-4'-nitro-biphenyl-2-carboxylic acid ethyl ester 在
Grubbs catalyst first generation 作用下,
以
二氯甲烷 为溶剂,
以87%的产率得到7-methyl-9-(4-nitro-phenyl)-6-phenyl-5,6-dihydro-2H-benzo[b][1,4]oxazocine-8-carboxylic acid ethyl ester