Ortho esters transetherification

The exchange of one alkoxy group for another is very rare for ethers, though it has been accomplished with reactive R, for example, diphenylmethyl with p-toluenesulfonic acid as a catalyst,611 and by treatment of alkyl aryl ethers with alkoxide ions ROAr + R O — ROR + ArO. 612 However, acetals and ortho esters undergo transetherification readily,613 for example,614... [Pg.390]

Transetherification 0-79 Reduction of ortho esters 0-92 Reaction between Grignard reagents and ortho esters... [Pg.1269]

Enol Ethers and Esters 0-15 O-Alkylation of carbonyl compounds with diazo alkanes 0-17 Transetherification 0-20 Reaction between acyl halides and active hydrogen compounds 0-23 Transesterification 0-24 Acylation of vinylic halides 0-94 Alkylation with ortho esters 0-107 O-Acylation of 1,3-dicarbonyl compounds... [Pg.1285]

Acetals and ortho esters undergo transetherification readily,as with the trasn-... [Pg.536]

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