Friedel-crafts cyanation of some reactive aromatic hydrocarbons
作者:P.H. Gore、F.S. Kamounah、A.Y. Miri
DOI:10.1016/s0040-4020(01)99510-9
日期:1979.1
Direct cyanation, using the heterogeneous Friedel-Crafts system cyanogen bromide/aluminium chloride, has given good yields of the following carbonitriles: anthracene-9-, chrysene-6-, 2-methyl-1-naphtho-, 4-methyl-1-naphtho-, 1-naphtho-, phenanthrene-9-, 2,4,6-trimethylbenzo-, triphenylene-1- and triphenylene-2-carbonitriles.
Stereoselective (2π + 2π) Photocycloaddition of Arylalkenes to Chrysene
作者:Hajime Maeda、Shigeyuki Waseda、Kazuhiko Mizuno
DOI:10.1246/cl.2000.1238
日期:2000.11
Photocycloaddition of electron-deficient arylalkenes to chrysene stereoselectively occurred at 5,6-position of chrysene ring to give two (2π + 2π) photocycloadducts through sandwich-type singlet exciplexes. Photocycloreversion took place via the excited singlet states of the photocycloadducts.