Anti-selective and regioselective aldol addition of ketones with aldehydes using MgI2 as promoter

Autor: Han-Xun Wei, Paul W. Paré, Richard L. Jasoni, Huawa Shao, Jiali Hu
Rok vydání: 2004
Předmět:
Zdroj: Tetrahedron. 60:11829-11835
ISSN: 0040-4020
DOI: 10.1016/j.tet.2004.09.098
Popis: The first example of a direct aldehyde–ketone coupling using the secondary amine piperidine as base in the presence of MgI2 to generate high selectivity of anti-aldol products from unmodified ethyl ketones in high yield is reported. The coupling reactions were carried out in a one-pot reaction by mixing four reaction components at room temperature. In the case of unsymmetrical ketones, addition was made to the less hindered α-side.
Databáze: OpenAIRE