Synergistic photoredox and tertiary amine catalysis: generation of allylic sulfones from Morita–Baylis–Hillman acetates and sulfur dioxide
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DOI: 10.1039/d1qo00344e
Abstract: The first example of the synthesis of allylic sulfones through synergistic photoredox and tertiary amine catalysis, starting from MBH acetates, DABCO·(SO2)2 and 4-substituted Hantzsch esters or potassium alkyltrifluoroborates via a radical pathway, is reported. read more here.
Keywords: tertiary amine; allylic sulfones; synergistic photoredox; amine catalysis ... See more keywords
Streptocyanine as an activation mode of amine catalysis for the conversion of pyridine rings to benzene rings
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DOI: 10.1039/d2sc06225a
Abstract: Amine catalysts have emerged as an invaluable tool in organic synthesis. Iminium, enamine, and enamine radical cation species are representative activation modes of amine catalysis. However, the development of new amine catalysis activation modes that… read more here.
Keywords: amine catalysis; pyridine rings; activation mode; activation ... See more keywords
Photoredox-Mediated Asymmetric Cross-Dehydrogenative Coupling of Enones and Tertiary Amines by Chiral Primary Amine Catalysis
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DOI: 10.1055/a-1463-4219
Abstract: A catalytic asymmetric dehydrogenative cross-coupling reaction between enones and tertiary amines enabled by synergistic photoredox and chiral primary amine catalysis is reported. The reaction was proposed to proceed via the interception of iminium ion intermediate,… read more here.
Keywords: chiral primary; tertiary amines; primary amine; cross ... See more keywords