An expedient and efficient chemoselective protection of carbonyl compounds and transthioacetalization of O,O- and S,O-acetals catalyzed by HBF4-SiO2

  • Kamble V
  • Bandgar B
  • Muley D
 et al. 
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Abstract

Trace amount of solid-supported fluoroboric acid (HBF4-SiO2) was found to be an effective catalyst for chemoselective and highly efficient protection of carbonyl compounds and transthioacetalization of O,O- and S,O-acetals under solvent-free conditions. Moreover, the catalyst can be recycled for number of times without significant loss of activity. © 2006 Elsevier B.V. All rights reserved.

Author-supplied keywords

  • Aldehydes
  • Chemoselective
  • HBF4-SiO2
  • Ketones
  • O,O- and S,O-acetals

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Authors

  • Vinod T. Kamble

  • Babasaheb P. Bandgar

  • Dnyanoba B. Muley

  • Neeta S. Joshi

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