Copper(II) tetrafluoroborate as a novel and highly efficient catalyst for acetal formation

Kumar, Raj ; Chakraborti, Asit K. (2005) Copper(II) tetrafluoroborate as a novel and highly efficient catalyst for acetal formation Tetrahedron Letters, 46 (48). pp. 8319-8323. ISSN 0040-4039

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Official URL: http://www.sciencedirect.com/science/article/pii/S...

Related URL: http://dx.doi.org/10.1016/j.tetlet.2005.09.168

Abstract

Commercially available copper(II) tetrafluoroborate hydrate has been found to be a highly efficient catalyst for dimethyl/diethyl acetal formation in high yields from aldehydes and ketones by reaction with trimethyl/triethyl orthoformate at room temperature and in short period. Acetalisation was carried out under solvent-free conditions with electrophilic aldehydes/ketones. For weakly electrophilic aldehydes/ketones (e.g., benzaldehyde, cinnamaldehyde and acetophenone) and for aldehydes having a substituent that can coordinate with the catalyst, the corresponding alcohol was used as solvent.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Dimethyl Acetals; Diethyl Acetals; Aldehydes; Ketones; Copper(II) Tetrafluoroborate Hydrate; Catalyst; Trimethyl Orthoformate; Triethyl Orthoformate
ID Code:100627
Deposited On:19 Jan 2017 12:08
Last Modified:19 Jan 2017 12:08

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