Facile and Efficient Synthesis of 14‐Alkyl‐ or Aryl‐14‐H‐Dibenzo[a,j]xanthenes using Sulfonyl‐Functionalized Ionic Liquids

Abstract

An efficient, simple, and rapid synthesis of 14‐alkyl‐or aryl‐14‐H‐dibenzo[a,j]xanthenes is reported by one‐pot condensation of 2‐naphthol with alkyl or aryl aldehydes in the presence of sulfonyl‐functionalized acidic ionic liquids at 125°C.

Keywords:

• acidic ionic liquid
• aldehyde
• dibenzoxanthene
• 2‐naphthol
• one‐pot condensation

Acknowledgments

The authors are grateful to the Council of Scientific and Industrial Research (CSIR), New Delhi, India, and DST for financial assistance.