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Preparation and Reactivity of a Triphosphenium Bromide Salt: A Convenient and Stable Source of Phosphorus(I)
Published on: November 22, 2016
Orthosilicate-mediated esterification of monosubstituted phosphinic acids
1Department of Chemistry, Box 298860, Texas Christian University, Fort Worth, Texas 76129, USA.
Organic Letters
|October 13, 2000
Summary
This study introduces a novel esterification method for monosubstituted phosphinic acids using orthosilicates, achieving excellent yields. The process selectively reacts phosphinylidene-containing acids, offering a convenient alternative to traditional methods.
Area of Science:
- Organic Chemistry
- Organophosphorus Chemistry
Background:
- Esterification of phosphinic acids is crucial for synthesizing organophosphorus compounds.
- Traditional methods often involve hazardous reagents or limited scope.
Purpose of the Study:
- To develop a novel, efficient, and selective method for phosphinic acid esterification.
- To explore one-pot procedures for phosphinate ester synthesis.
Main Methods:
- Esterification of monosubstituted phosphinic acids with orthosilicates.
- Selective reaction conditions for phosphinylidene-containing acids.
- One-pot synthesis of phosphinate esters from alcohols.
Main Results:
- Excellent yields achieved for monosubstituted phosphinic acid esterification.
- Selective esterification of phosphinylidene-containing acids observed.
- Disubstituted phosphinic acids and phosphonic acids remained unreacted.
- Successful one-pot procedures demonstrated for phosphinate ester preparation.
Conclusions:
- Orthosilicate-mediated esterification offers a convenient and general alternative to diazomethane or carbodiimide methods.
- The method exhibits high selectivity for specific phosphinic acid derivatives.
- This approach simplifies the synthesis of phosphinate esters.
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