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

Vinod T. Kamble; Babasaheb P. Bandgar; Neeta S. Joshi; Vasant S. Jamode

doi:10.1055/s-2006-950282

LETTER

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

Vinod T. Kamble*^a, Babasaheb P. Bandgar^a, Neeta S. Joshi^a, Vasant S. Jamode^b
^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

Abstract

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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.

Key words

acylals - carbonyl compounds - chemoselective - HBF₄-SiO₂ - protection

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References

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