Organocatalytic umpolung annulative dimerization of ynones for the synthesis of 5-alkylidene-2-cyclopentenones,Organic & Biomolecular Chemistry

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Organocatalytic umpolung annulative dimerization of ynones for the synthesis of 5-alkylidene-2-cyclopentenones
Organic & Biomolecular Chemistry ( IF 3.2 ) Pub Date : 2017-11-07 00:00:00 , DOI: 10.1039/c7ob02424j
Dhevalapally B. Ramachary _{1,

2,

3,

4} , T. Prabhakar Reddy _{1,

2,

3,

4} , A. Suresh Kumar _{1,

2,

3,

4}

Affiliation

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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