Tetrabenzoperylene (IV) was synthesized in order to see whether it has fixed double bonds suitable for a double diene synthesis with maleic anhydride. This was found to be the case. From the double adduct (VI) tetrabenzocoronene (VIIIa) was obtained. It cannot have superaromaticity as shown in VIIIb. Attempts to obtain tetrabenzocoronene by photocyclization from IX gave diphenyltribenzopyrene (X).
合成四苯并per(IV),以查看其是否具有适合与
马来酸酐合成双二烯的固定双键。发现情况就是如此。从双加合物(VI)获得四苯并co烯(VIIIa)。如VIIIb所示,它不能具有超芳香性。尝试通过光环化从IX获得四苯并co,得到二苯基三苯并py(X)。