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- W2997113363 abstract "Substituted α-alkylidene cyclopentenones are formed in up to 93% yield by the intramolecular capture of vinyl cations with pendent alkenes. An increased level of substitution at the β-position of the β-hydroxy-α-diazoketone starting material changed the course of the reaction to instead give a lactone product. A reaction path that involves bond reorganization via an acylium ion intermediate is proposed to explain these results. Substrate scope studies showed that more stable vinyl cations gave higher α-alkylidene cyclopentenone yields. This study provides a mild and efficient method to form α-alkylidene cyclopentenones that complements C–H insertion and Nazarov cyclization strategies." @default.
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- W2997113363 date "2019-12-24" @default.
- W2997113363 modified "2023-09-27" @default.
- W2997113363 title "Substituted α-Alkylidene Cyclopentenones via the Intramolecular Reaction of Vinyl Cations with Alkenes" @default.
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- W2997113363 doi "https://doi.org/10.1021/acs.orglett.9b04255" @default.
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