Organocatalytic umpolung annulative dimerization of ynones for the synthesis of 5-alkylidene-2-cyclopentenones
Organocatalytic umpolung annulative dimerization of ynones for the synthesis of 5-alkylidene-2-cyclopentenones
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Date
2017-01-01
Authors
Ramachary, Dhevalapally B.
Prabhakar Reddy, T.
Suresh Kumar, A.
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Abstract
A novel phosphine-catalyzed umpolung [3 + 2]-annulative dimerization of ynones was developed to furnish functionally rich 5-alkylidene-2-cyclopentenones. In this protocol, ynone acts as both C2 and C3 synthons, which undergo [3 + 2]-annulative dimerization.
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Organic and Biomolecular Chemistry. v.15(46)