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A convenient stereoselective synthesis of conjugated 2z en 4 ynoic and 2z 4z and 2z 4e dienoic acid derivatives from propiolic acid derivatives



A convenient stereoselective synthesis of conjugated 2z en 4 ynoic and 2z 4z and 2z 4e dienoic acid derivatives from propiolic acid derivatives



Tetrahedron Letters 33(18): 2535-2538



The palladium-catalysed one-pot sequential reaction of propiolic acid derivatives with lithium halides first, and then with terminal alkynes or alkenes affords conjugated (2Z)-en-4-ynoic and (2Z,4Z)- and (2Z,4E)-dienoic acid derivatives with high stereoselectivity.

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Accession: 006939872

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