Carbonyl Propargylation and Allenylation with 2-Propynyl Mesylates, Tin(IV) Iodide, and Tetrabutylammonium Iodide Controlled by Either a Steric Effect or Coordination Effect
Saniere-Karila,M. et al., Bulletin de la Societe Chimique de France, 1973, p. 3371 - 3376
作者:Saniere-Karila,M. et al.
DOI:——
日期:——
Carbonyl Propargylation and Allenylation with 2-Propynyl Mesylates, Tin(IV) Iodide, and Tetrabutylammonium Iodide Controlled by Either a Steric Effect or Coordination Effect
A combination of tin(IV) iodide and tetrabutylammonium iodide can be used for propargylation or allenylation of aldehydes with 2-propynyl mesylates in dichloromethane. 1-Methyl-2-propynyl mesylate or 2-butynyl mesylate results in propargylation or allenylation controlled by the steric effect of the 1- or 3-methyl group, and 3-trimethylsilyl-2-propynyl mesylate results in propargylation controlled by the coordination of triiodostannate to silane.