Standard Article

Paneth Technique

Published Online: 15 SEP 2010

DOI: 10.1002/9780470638859.conrr476

Comprehensive Organic Name Reactions and Reagents

Comprehensive Organic Name Reactions and Reagents

How to Cite

2010. Paneth Technique. Comprehensive Organic Name Reactions and Reagents. 476:2111–2113.

Publication History

  1. Published Online: 15 SEP 2010

Chemistry Terms

Choose one or more boxes to highlight terms.

Abstract

The preparation of alkyl or aryl radicals, primarily methyl radical by thermal decomposition of organolead compounds under a vacuum system is generally referred to as the Paneth technique. The tetramethyl lead is decomposed at 1–2 mmHg of pressure in a glass tube heated either by a mobile Bensen burner or by an electric furnace. The study finds that tetraethyl lead reacts in the same fashion, whereas other higher order alkyl lead compounds give a mixture of radicals upon thermal decomposition. Besides lead, other metals have also been found to react with methyl radicals. This technique provides a convenient method for the production of radicals.

Keywords:

  • tetramethyl lead;
  • methyl radicals;
  • Bensen burner;
  • electric furnace