About the stereoselectivity control in reactions of chiral ortho-sulfinyl benzyl carbanions with aldehydes

Autor: José L. García Ruano, M. Teresa Aranda, Jose M. Aguirre
Rok vydání: 2004
Předmět:
Zdroj: Tetrahedron. 60:5383-5392
ISSN: 0040-4020
DOI: 10.1016/j.tet.2004.04.051
Popis: Reactions of aliphatic and aromatic aldehydes with the benzyllithium derived from 2-p-tolylsulfinyl ethylbenzene yield mixtures of mainly two compounds, anti-3 and syn-4, epimers at hydroxylic carbon, easily separated by chromatography and desulfinylated into enantiomerically pure 1-alkyl (or aryl)-2-phenyl-1-propanols. The observed stereoselectivity at C(1) and C(2) is analyzed to the light of the steric and electronic effects of the substituents.
Databáze: OpenAIRE