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Preparation of α-hydroxyphosphonates over phosphate catalysts

Paper ID Volume ID Publish Year Pages File Format Full-Text
51792 46854 2008 6 PDF Available
Title
Preparation of α-hydroxyphosphonates over phosphate catalysts
Abstract

Catalysts based on natural phosphate (NP) are able to catalyze the synthesis of α-hydroxyphosphonates by reaction of dimethyl or diethyl phosphite with aldehydes and ketones at room temperature. This eco-friendly method is more efficient with modified phosphate, either impregnated with KF (KF/NP) or modified with sodium (Na/NP). Excellent yields (89–99%) were obtained with Na/NP in very short reaction times, 1–5 min in the case of aldehydes and 1–1.5 h in the case of ketones, a remarkable activity considering the very low surface area of the solid and the absence of solvent during the synthesis process. This catalyst was fully recoverable after calcination in four consecutive runs.

Keywords
Hydroxyphosphonate; Heterogeneous catalysis; Natural phosphate; Potassium fluoride; Sodium nitrate
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Publisher
Database: Elsevier - ScienceDirect
Journal: Catalysis Communications - Volume 9, Issue 15, 20 September 2008, Pages 2503–2508
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Catalysis
Get Full-Text Now
Don't Miss Today's Special Offer
Price was $35.95
You save - $31
Price after discount Only $4.95
100% Money Back Guarantee
Full-text PDF Download
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Any Questions? feel free to contact us