Synlett 2006(17): 2719-2722  
DOI: 10.1055/s-2006-950282
LETTER
© Georg Thieme Verlag Stuttgart · New York

A Remarkable HBF4-SiO2-Catalyzed Synthesis of Acylals from Aldehydes under Solvent-Free Conditions

Vinod T. Kamble*a, Babasaheb P. Bandgara, Neeta S. Joshia, Vasant S. Jamodeb
a Organic Chemistry Research Laboratory, School of Chemical Sciences, Swami Ramanand Teerth Marathwada University, Nanded 431606, Maharashtra, India
Fax: +91(2462)259465; e-Mail: vtkd@rediffmail.com;
b Department of Chemistry, Amravati University, Amravati 444602, Maharashtra, India
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Publikationsverlauf

Received 10 April 2006
Publikationsdatum:
09. Oktober 2006 (online)

Abstract

HBF4-SiO2 has been found to be an outstanding catalyst for the protection of carbonyl compounds as acylals under entirely solvent-free conditions. Some of the major advantages of this procedure are high yields, ease of operation, high chemoselectivity, high atom efficiency, and compatibility with other protecting groups.