Regiospecific bromination of condensed tetralones via aryloxydifluoroborn chelates

SC Mackay, PN Preston, SG Will…

Index: Mackay, Shelagh C.; Preston, Peter N.; Will, Stephen G.; Morley, John O. Journal of the Chemical Society, Chemical Communications, 1982 , # 7 p. 395 - 396

Full Text: HTML

Citation Number: 4

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 ...