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Visible-light driven electron-donor-acceptor (EDA) complex-initiated synthesis of thio-functionalized pyridines

Hirendra Nath Dhara¹, Amitava Rakshit¹, Dinabandhu Barik¹

¹Department of Chemistry, Indian Institute of Technology Guwahati, 781039, Assam, India. patel@iitg.ac.in.

Chemical Communications (Cambridge, England)

|June 7, 2023

Abstract:

A visible/solar-light-induced electron-donor-acceptor (EDA)-aggregated/mediated radical cyclization between (E)-2-(1,3-diarylallylidene)malononitriles and thiophenols leads to poly-functionalized pyridines. The two reacting partners form an EDA complex that absorbs light and triggers the single-electron transfer (SET) to generate a thiol radical, which undergoes addition/cyclization with dicyanodiene through the formation of C-S and C-N bonds.

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