Abstract
Bromination (Br2, CCl4) of the anthracenone derivative (1b) under thermal or photochemical conditions gives the expected bromo-compound (1d) whereas photochemical bromination of the aryloxydifluoroboron complexes (2a,b) gives products (2c,d) of benzylic substitution; conversion of (2c) and (3a,b) into anthraquinone derivatives including madeirin (4) is described and extension of the regiospecific bromination procedure to the bicyclic difluoroboron complex (5a) is illustrated.
Original language | English |
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Pages (from-to) | 395-396 |
Number of pages | 2 |
Journal | Journal of the Chemical Society, Chemical Communications |
Issue number | 7 |
Publication status | Published - 1982 |