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Start Over Author "Jaume Rostoll-Berenguer" Journal organic letters
1 results on '"Jaume Rostoll-Berenguer"'

1. Photocatalytic Giese Addition of 1,4-Dihydroquinoxalin-2-ones to Electron-Poor Alkenes Using Visible Light

Author

Carlos Vila, Gonzalo Blay, Jaume Rostoll-Berenguer, and José R. Pedro

Subjects
010405 organic chemistry, Chemistry, Organic Chemistry, Electron, 010402 general chemistry, Photochemistry, 01 natural sciences, Biochemistry, Reaccions químiques, 0104 chemical sciences, Coupling (electronics), Photocatalysis, Amines, Physical and Theoretical Chemistry, Química orgànica, Visible spectrum
Abstract

The visible-light photoredox-catalyzed coupling of 1,4-dihydroquinoxalin-2-ones and Michael acceptors was achieved using Ru(bpy)3Cl2 as the photocatalyst and (PhO)2PO2H as an additive. The optimized reaction conditions provide a good yield for the radical conjugate addition products (44 examples) with a wide range of structurally different Michael acceptors. A gram scale reaction using sunlight irradiation is also described. Furthermore, several transformations were carried out with the Giese addition products.

Published
2020

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