Synthesis 2012; 44(9): 1343-1348
DOI: 10.1055/s-0031-1289742
paper
© Georg Thieme Verlag Stuttgart · New York

Enantioselective Addition of Dimethylzinc to Aldehydes Catalyzed by a Chiral Perhydro-1,3-benzoxazine-Based Amino Alcohol as Ligand

Rebeca Infante
IU CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Dr. Mergelina s/n, 47011 Valladolid, Spain, Fax: +34983423013   eMail: javiernr@qo.uva.es
,
Javier Nieto*
IU CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Dr. Mergelina s/n, 47011 Valladolid, Spain, Fax: +34983423013   eMail: javiernr@qo.uva.es
,
Celia Andrés*
IU CINQUIMA and Departamento de Química Orgánica, Facultad de Ciencias, Universidad de Valladolid, Dr. Mergelina s/n, 47011 Valladolid, Spain, Fax: +34983423013   eMail: javiernr@qo.uva.es
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Publikationsverlauf

Received: 07. Dezember 2011

Accepted after revision: 02. März 2012

Publikationsdatum:
03. April 2012 (online)


Abstract

Dimethylzinc undergoes efficient enantioselective addition to a wide variety of aromatic and aliphatic aldehydes in the presence of a catalytic amount of a chiral perhydro-1,3-benzoxazine-based amino alcohol. Methyl carbinols are obtained in good yields and in enantiomeric excesses of 99% or more in the absence of any metal other than zinc.

Supporting Information