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Tin-containing hydrotalcite-like compounds as catalysts for the Meerwein–Ponndorf–Verley reaction

Paper ID Volume ID Publish Year Pages File Format Full-Text
40188 45845 2014 6 PDF Available
Title
Tin-containing hydrotalcite-like compounds as catalysts for the Meerwein–Ponndorf–Verley reaction
Abstract

•Calcination products of hydrotalcites are excellent catalyst for MPV reaction.•The presence of tin in the hydrotalcite improves the catalytic activity.•A concerted mechanism is proposed that explains the catalytic results.

Hydrotalcite-like compounds (HTs) containing Mg/Al or Mg/Al/Sn were prepared and used as precursors to obtain basic catalysts by calcination at 450 °C. The catalysts were used in the Meerwein–Ponndorf–Verley (MPV) reaction of benzaldehyde and cyclohexanone in the presence of 2-propanol as hydrogen donor. The mixed oxide obtained by calcining the tin-containing HT was found to be more catalytically active than that obtained from the Mg/Al HT and the pure magnesium oxide. This result can be ascribed to the mechanism of the reaction, which involves acid–base sites on the catalyst surface. The most active catalyst was used in the MPV reactions of other carbonyl compounds including aldehydes and ketones with excellent conversion and selectivity.

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Keywords
Hydrotalcite; Hydrogen transfer; Meerwein–Ponndorf–Verley; Tin
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Tin-containing hydrotalcite-like compounds as catalysts for the Meerwein–Ponndorf–Verley reaction
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Publisher
Database: Elsevier - ScienceDirect
Journal: Applied Catalysis A: General - Volume 469, 17 January 2014, Pages 367–372
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
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Price was $35.95
You save - $31
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Full-text PDF Download
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