Synthesis of 4-bromophenanthrene

MS Newman, TB Patrick, RS Darlak…

Index: Newman,M.S. et al. Journal of Organic Chemistry, 1969 , vol. 34, # 6 p. 1904 - 1906

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Citation Number: 8

Abstract

Two routes by which 4bromophenanthrene (1) has been synthesized are described in detail. In one 4 phenanthrenecarboxylic acid (2) is treated with mercuric acetate in N- methylpyrrolidone at 100". The re-sulting solution is treated with pyridinium hydrobromide perbromide (or with bromine) to give 1 in 55% yield. The second route involves conversion of diphenic acid (3) in seven steps to 1 in 11% over-all yield.

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