5]-pyrene (II), 1,2-benzo-naphtho-2′,3′:6,7]-pyrene (III) and 1,2-benzo-dinaphtho-[2′,3′:4,5]; [2″,3″ :8,9] pyrene (VI) were obtained by pyrolysis of the ketone (I). The hydrocarbon (II) was also prepared by a synthesis with phthalic anhydride. Pyrolysis of the ketone (VIII) yields 3,4-benzo-naphtho-[2′,3′:9,10]-pyrene (VIII).
Diels–Alder reactions of 9,10-anthraquinodimethane and 9-methyleneanthrone
作者:Ian T. Millar、K. E. Richards
DOI:10.1039/j39670000855
日期:——
The addition reactions of 9,10-anthraquinodimethane with maleic anhydride, dimethyl acetylenedicarboxylate, p-benzoquinone, and 1,4-naphthoquinone have been studied. Syntheses of benzo[a]pyrene, dibenzo[j,xyz]-heptaphene and some substituted and reduced derivatives of these hydrocarbons are reported, and the preparation of 1,4:11,14-dibenzo[h,rst]pentaphenediquinone. The reaction of 10-hydroxy-10-methylanthrone