Pseudo-four component synthesis of mono- and di-benzylated-1,2,3-triazoles derived from aniline

Molecules. 2013 Dec 20;19(1):55-66. doi: 10.3390/molecules19010055.

Abstract

The pseudo-four component click synthesis of dibenzylated 1,2,3-triazoles derived from aniline is reported. The cycloaddition of sodium azide to N-(prop-2-ynyl)-benzenamine (I) in the presence of equimolar amounts of p-substituted benzyl derivatives, yields a mixture of mono- and dibenzylated 1,2,3-triazoles. When two equivalents of the benzyl derivative are added to the multicomponent reaction, the selective preparation of the dibenzylated compounds is achieved. The reactivity of the aniline N-H bond in monobenzylated 1,2,3-triazoles was tested by treatment with one equivalent of a p-substituted benzyl chloride at 40 °C, rendering the dibenzylated derivatives quantitatively.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Aniline Compounds / chemistry*
  • Catalysis
  • Click Chemistry
  • Triazoles / chemical synthesis
  • Triazoles / chemistry*

Substances

  • Aniline Compounds
  • Triazoles
  • aniline