Accessing thiophene-fused furans via visible light photoredoxcatalyzed [3+2]-annulation reaction

Himani Rani; Yaseen Hussain; Pankaj Chauhan

doi:10.1039/d6cc02260j

January 1, 2026Chemical Communications

Accessing thiophene-fused furans via visible light photoredoxcatalyzed [3+2]-annulation reaction

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Key Points

This research aims to develop a visible-light-driven method for synthesizing benzothiophene-fused furans.
Utilized visible light in a photoredox-catalyzed [3+2] annulation reaction.
Applied benzothiophenone-based diazo compounds with various alkynes.
Examined the tolerance of a broad range of substrates.
Successfully synthesized benzothiophene-fused furans using the proposed method.
Demonstrated efficiency across various alkynes.
Showed good functional group tolerance in the reaction.

Implication

Demonstrates efficient synthesis of thiophene-fused furans using visible light, suggesting novel pathways for drug development.

Abstract

A visible-light-driven [3+2] annulation of benzothiophenone-based diazo compounds with alkynes has been developed for the efficient synthesis of benzothiophene-fused furans. This photoredox-catalyzed transformation tolerates a broad range of alkynes, including...

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Cite This Study

Rani et al. (2026) studied this question.

synapsesocial.com/papers/6a338de8630953a74978ea0e https://doi.org/10.1039/d6cc02260j

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Accessing thiophene-fused furans via visible light photoredoxcatalyzed [3+2]-annulation reaction

Key Points

Implication

Abstract

Discussion

Cite This Study

Accessing thiophene-fused furans via visible light photoredoxcatalyzed [3+2]-annulation reaction

Key Points

Implication

Abstract

Discussion

Cite This Study

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