Methyl 3-<10'<5',15'-bis(4''-methylphenyl)-2',8',12',18'-tetraethyl-3',7',13',17'-tetramethylporphyrinyl>>propenoate 在
氢氧化钾 、
air 作用下,
以
甲醇 、
二氯甲烷 为溶剂,
以77%的产率得到methyl 3,9,13,19-tetraethyl-4,8,14,18-tetramethyl-6,16-bis(4'-methylphenyl)-3,4,20,21-tetradehydro-18,19-dihydrophorbine-20-carboxylate