Preparation and application of functional polymers—II. Preparation of vinyl ethers and thioethers using polymer-supported phosphonium salts |
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Authors: | Ahmed Akelah |
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Institution: | Chemistry Department, Faculty of Science, Tanta University, Tanta, Egypt |
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Abstract: | Insoluble polystyryldiphenyl-methoxymethyl- and methylthiomethyl-phosphonium chlorides have been prepared by treating polystyryldiphenylphosphine with chloromethylmethyl-ether and thioether respectively. These reagents were used for the conversion under mild conditions of carbonyl compounds into vinyl-ethers and thioethers, otherwise difficult to obtain; yields are high and work-up is easy. Moreover, methyl and ethyl β-styryl ethers were also prepared from the polymeric phosphorane by treatment with formate esters. |
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