Methyl 3-[2-(2-oxo-5-propan-2-ylcyclohepta[b]furan-3-yl)ethynyl]-7-propan-2-ylazulene-1-carboxylate 、
7,7,8,8-四氰基对苯二醌二甲烷 以
乙酸乙酯 为溶剂,
反应 3.0h,
以97%的产率得到Methyl 3-[3,3-dicyano-1-[4-(dicyanomethylidene)cyclohexa-2,5-dien-1-ylidene]-2-(2-oxo-5-propan-2-ylcyclohepta[b]furan-3-yl)prop-2-enyl]-7-propan-2-ylazulene-1-carboxylate