Journal
ORGANIC LETTERS
Volume 24, Issue 41, Pages 7617-7621Publisher
AMER CHEMICAL SOC
DOI: 10.1021/acs.orglett.2c03084
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Funding
- Canada Foundation for Innovation [17545, 19119]
- Province of Ontario
- NSERC (Canada Research Chairs programs)
- NSERC (Canada Graduate Scholarship)
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A regioselective palladium-catalyzed allylic alkylation method using simple allylic alcohols as electrophile precursors is developed. An organoboron co-catalyst is used to activate the azole-type nucleophile and accelerate the formation of a pi-allylpalladium complex from the allylic alcohol. The method can be applied to various heterocycle types.
A method for regioselective palladium-catalyzed allylic alkylation of ambident nitrogen heterocycles, employing simple allylic alcohols as electrophile precursors, is described. An organoboron co-catalyst serves both to activate the azole-type nucleophile toward selective N-functionalization and to accelerate the formation of a pi-allylpalladium complex from the allylic alcohol. The method can be applied to various heterocycle types, including 1,2,3-and 1,2,4-triazoles, tetrazoles, pyrazoles, and purines, and can be extended to substituted allylic alcohol partners.
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