3,4-二氟氯苯

四苯基环戊二烯酮

马来酸酐

3,4,5,6-tetraphenyl-cyclohexa-3,5-diene-1r,2c-dicarboxylic acid-anhydride

4,5,6,7-tetraphenyl-3a,4,7,7a-tetrahydro-indene-7-carboxylic acid