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Late-Stage Alkylation of Heterocycles Using N-(Acyloxy)phthalimides
S.K. Parida, S.K. Hota, R. Kumar,
Published in John Wiley and Sons Ltd
PMID: 33662188
Volume: 16
Issue: 8
Pages: 879 - 889
Synthetic methods enabling late-stage modification of heterocycles hold tremendous importance in the pharmaceutical and agrochemical industry and drug discovery. Accordingly, efficient, functional group tolerant and selective late-stage alkylation of valuable molecular entities is of enormous significance and well-acknowledged in medicinal chemistry. Radical alkylation of heteroarenes employing carboxylic acids as the alkyl radical precursor represents one of the most direct ways of C−H functionalizations of heterocycles. Recently, the field has undergone a revolutionary development especially with regard to the generation of alkyl radicals under much milder conditions. In this regard N-(acyloxy)phthalimides (NHPI esters) have emerged as a suitable precursor of a diverse set of alkyl radicals allowing formal C−H alkylation of not only N-heteroarenes but a diverse set of non-aromatic heterocycles under visible light photocatalysis or electrochemical conditions. This review delineates all these discoveries and provides readers a comprehensive overview of this rapidly expanding field. © 2021 Wiley-VCH GmbH
About the journal
JournalData powered by TypesetChemistry - An Asian Journal
PublisherData powered by TypesetJohn Wiley and Sons Ltd
Open AccessNo