Content 6.3.2.3 ion): nions Problems 7.Benzenes 2 32 the Friedel-C 0Q000 7.3 7.3.2 effects 7.4 3671319 of su benzene and thiophene 出8 8.Carbonyl Compounds:Aldehydes and Ketones n 83.3 e:eion 3.3.3.2 crwein-Ponndorf-Verlev 124