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Bardhan Sengupta Synthesis

Published Online: 15 SEP 2010

DOI: 10.1002/9780470638859.conrr049

Comprehensive Organic Name Reactions and Reagents

Comprehensive Organic Name Reactions and Reagents

How to Cite

2010. Bardhan Sengupta Synthesis. Comprehensive Organic Name Reactions and Reagents. 49:215–219.

Publication History

  1. Published Online: 15 SEP 2010

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Abstract

Bardhan Sengupta synthesis is the synthesis of phenanthrene via the following consecutive processes: the alkylation of arylethyl halide with cyclohexanone, the reduction of the carbonyl group, cyclization to an aromatic ring, and dehydrogenation to phenanthrene. Unfortunately, Bardhan and Sengupta's original claim of 1,4-dimethylphenanthrene prepared by this reaction has proven to be the 1,3-dimethylphenanthrene. In this reaction, some side products, including the spiro compound, might form. This reaction has been used for the synthesis of different phenanthrenes and can be further extended to other higher polynuclear aromatics.

Keywords:

  • phosphorus pentoxide;
  • 1,4-dimethylphenanthrene;
  • phenanthrene;
  • cyclohexanol