Synthesis of N-trifluoromethylthio-1H-isochromen-1-imines via N-trifluoromethylthiolation/iminolactonization of o-alkynyl aryl amides with N-trifluoromethylthiosaccharin

Abstract

A simple and practical synthetic method for the construction of N-trifluoromethylthio-1H-isochromen-1-imines from o-alkynyl aryl primary amides using N-trifluoromethylthiolation/iminolactonization was developed. This unique strategy possesses a broad substrate scope, excellent compatibility, and operational simplicity, providing convenient access to target compounds in moderate to excellent yields.

Graphical abstract: Synthesis of N-trifluoromethylthio-1H-isochromen-1-imines via N-trifluoromethylthiolation/iminolactonization of o-alkynyl aryl amides with N-trifluoromethylthiosaccharin

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Article information

Article type
Research Article
Submitted
29 Aug 2025
Accepted
17 Dec 2025
First published
17 Dec 2025

Org. Chem. Front., 2026, Advance Article

Synthesis of N-trifluoromethylthio-1H-isochromen-1-imines via N-trifluoromethylthiolation/iminolactonization of o-alkynyl aryl amides with N-trifluoromethylthiosaccharin

J. Hong, F. Zheng, X. Wang, P. Cao, D. Yin, W. Li, X. Liu, Q. Wang, J. Wang and C. Zheng, Org. Chem. Front., 2026, Advance Article , DOI: 10.1039/D5QO01223F

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