Access to benzo[e][1,3]thiazin-4-ones via PCy3-mediated annulations of benzo[c][1,2]dithiol-3-ones with iso(thio)cyanates

Chengxiang Yi; Mao-Mei Zhu; Jie Ren; Weimin Zhu; Chuanjun Song; Yangang Wu

doi:10.1039/d5qo01013f

January 1, 2025Organic Chemistry Frontiers

Access to benzo[e][1,3]thiazin-4-ones via PCy3-mediated annulations of benzo[c][1,2]dithiol-3-ones with iso(thio)cyanates

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Key Points

The methodology produces a variety of benzo[e][1,3]thiazin-4-ones effectively.
The reaction involves a novel exchange strategy between S and C-N units.
Organophosphine plays a crucial role in the annulations of benzo[c][1,2]dithiol-3-ones.
Proposed reactions highlight the versatility of iso(thio)cyanates in organic synthesis.

Implication

This novel methodology produces benzo[e][1,3]thiazin-4-ones through C-N unit exchange, indicating effective use of organophosphine.

Abstract

Herein, we describe a novel organophosphine-mediated annulation reaction of benzo[c][1,2]dithiol-3-ones with iso(thio)cyanates, which proceeds via an S atom to C-N unit exchange strategy. The methodology efficiently produced a variety of...

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Cite This Study

Yi et al. (2025) studied this question.

synapsesocial.com/papers/68c1b1a154b1d3bfb60e9209 https://doi.org/10.1039/d5qo01013f

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Access to benzo[e][1,3]thiazin-4-ones via PCy3-mediated annulations of benzo[c][1,2]dithiol-3-ones with iso(thio)cyanates

Key Points

Implication

Abstract

Discussion

Cite This Study

Access to benzo[e][1,3]thiazin-4-ones via PCy3-mediated annulations of benzo[c][1,2]dithiol-3-ones with iso(thio)cyanates

Key Points

Implication

Abstract

Discussion

Cite This Study

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