Efficient Domino Process Based on the Catalytic Generation of Non-Metalated, Conjugated Acetylides in the Presence of Aldehydes or Activated Ketones
作者:David Tejedor、Fernando García-Tellado、José Juan Marrero-Tellado、Pedro de Armas
DOI:10.1002/chem.200204579
日期:2003.7.7
acetylides are used to generate enol-protected functionalized propargylic alcohols 1, 1,3-dioxolane compounds 2, or 3,4,5-trisubstituted 4,5-dihydrofurans 4 through serial multibond-forming processes. The method calls for a nucleophile (a tertiary amine or phosphine) as a chemical activator, a conjugated terminal acetylene as the acetylide source, and an aldehyde or activated ketone as the electrophilic
Alkynoates as a Source of Reactive Alkylinides for Aldehyde Addition Reactions
作者:Pedro de Armas、Fernando García-Tellado、José J. Marrero-Tellado、David Tejedor、Miguel A. Maestro、Javier Gonzalez-Platas
DOI:10.1021/ol015951b
日期:2001.6.1
[GRAPHCIS]The reaction of activated alkynes with carbonyl compounds in the presence of a catalytic amount of a nucleophile leads to enol-protected functionalized propargyl alcohols and 1,3-dioxolane compounds by way of a mild carbon-carbon bond formation reaction.