Thermal vs. Visible-Light Photoredox-Catalyzed Cascade Radical Cyclization Involving SO2 Fixation to Access 6-Alkylsulfonylmethyl Phenanthridines DOI Creative Commons
Tonish Kumar Sahu,

Abhay Kumar Vishwakarma,

V. Satish Kumar

et al.

Published: Dec. 22, 2023

Convenient access to 6-alkylsulfonylmethyl phenanthridines has been demonstrated both under thermal and visible-light photoredox-catalyzed conditions. A cascade of radical cyclization is triggered on exposure biphenyl vinyl azides the in-situ generated alkyl sulfonyl radicals from 4-substituted Hanztsch esters in presence an SO2 surrogate. Transition metal-free, mild reaction conditions, broad substrate scope constitute some highlights approach. Also, synthetic utility accessed demonstrated.

Language: Английский

Thermal vs. Visible-Light Photoredox-Catalyzed Cascade Radical Cyclization Involving SO2 Fixation to Access 6-Alkylsulfonylmethyl Phenanthridines DOI Creative Commons
Tonish Kumar Sahu,

Abhay Kumar Vishwakarma,

V. Satish Kumar

et al.

Published: Dec. 22, 2023

Convenient access to 6-alkylsulfonylmethyl phenanthridines has been demonstrated both under thermal and visible-light photoredox-catalyzed conditions. A cascade of radical cyclization is triggered on exposure biphenyl vinyl azides the in-situ generated alkyl sulfonyl radicals from 4-substituted Hanztsch esters in presence an SO2 surrogate. Transition metal-free, mild reaction conditions, broad substrate scope constitute some highlights approach. Also, synthetic utility accessed demonstrated.

Language: Английский

Citations

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