Synthesis of 2-trifluoromethyl thiazoles via [3 + 2] cycloaddition of pyridinium 1,4-zwitterionic thiolates with CF3CN

Org Biomol Chem. 2022 Nov 16;20(44):8761-8765. doi: 10.1039/d2ob01749k.

Abstract

2,2,2-Trifluoroacetaldehyde O-(aryl)oxime was employed for the [3 + 2] cycloaddition of pyridinium 1,4-zwitterionic thiolates for the synthesis of 2-trifluoromethyl 4,5-disubstituted thiazoles. The reaction works well with various substituted pyridinium 1,4-zwitterionic thiolates in moderate to good yields. The synthetic potential of the obtained 2-trifluoromethyl 4,5-disubstituted thiazoles was demonstrated.

Publication types

  • Research Support, Non-U.S. Gov't

MeSH terms

  • Cycloaddition Reaction
  • Thiazoles*

Substances

  • Thiazoles