Work

From Dienophiles to Dienes: Catalysis by Polystyrene-Supported Triphenylphosphine with Pentane-2,4-dione as Co-Catalyst

Year: 2024

Type: article

Abstract: Three 1,1-diethoxyalk-3-yn-2-ones underwent isomerization and gave only the corresponding (3E,5E)-alkadienones in 72–87% yield when subjected to polystyrene-supported triphenylphosphine at 60 °C using acetylacetone as a co-catalyst. As a first step to make the dienes electron richer, the diethoxyacetyl moiety was reduced with sodium borohydride under Luche conditions and afforded the corresponding alcohols, with a 92% yield in the best case.

Source: Molbank

DOI: 10.3390/m1944

Authors: Ludvik O. Espeland, Leiv K. Sydnes

Institution: University of Bergen

Language: English

Topic: Phosphorus compounds and reactions

Subfield: Organic Chemistry

Field: Chemistry

Domain: Physical Sciences

Open Access status: gold

Estimated APC paid: $568

Funders: Universitetet i Bergen, Norges Forskningsråd