Gies AE, Pfeffer M. A Novel Strategy for the Synthesis of Oxygenated Phenanthrenes Involving a Combination of Ullmann and McMurry Reactions.
J Org Chem 1999;
64:3650-3654. [PMID:
11674493 DOI:
10.1021/jo982522r]
[Citation(s) in RCA: 28] [Impact Index Per Article: 1.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
A general synthetic procedure for the preparation of polyoxygenated phenanthrenes from substituted derivatives of benzaldehyde is described. The key compound is a 6,6'-biphenyl-1,1'-dicarboxaldehyde intermediate formed through an ambient temperature Ullmann coupling. The subsequent McMurry condensation gave rise to the phenanthrene in 45-57% yields.
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