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Phenyl neighbouring group participation

B. Solvolysis of Phosphoric Acid Derivatives.—Interest continues in neighbouring-group participation in the solvolysis of phosphate esters. As a potential model compound for investigating the mechanism of ribo-nuclease action, the phenyl hydrogen phosphate ester of c/j-3,4-tetrahydro-furandiol (24) has been the subject of a detailed study. Above (and probably also below) pH 4 hydrolysis gives solely the cyclic phosphate (25)... [Pg.100]

Neighbouring-group participation in the hydrolysis of esters and amides has been reviewed. The effects of urea, Na+ and Li+ on the intramolecular general-base-catalysed glycolysis of phenyl salicylate (217) in glycol-acetonitrile solvent at constant water concentration have been reported. ... [Pg.71]

Finally, an example with a neighbouring phenyl group. Participation is hinted at by the retention of relative stereochemistry. [Pg.973]

Kinetic measurements have indicated that neighbouring acetamido-group participation occurs in the spontaneous hydrolysis and methanolysis of 2-carboxy-phenyl 2-acetamido-2-deoxy-jS-D-glucopyranoside and in the spontaneous hydrolysis of 2,4-dinitrophenyl 2-acetamido-2-deoxy-j8-D-glucopyranoside and... [Pg.65]

See other pages where Phenyl neighbouring group participation is mentioned: [Pg.45]    [Pg.45]    [Pg.45]    [Pg.716]    [Pg.92]    [Pg.329]    [Pg.623]    [Pg.339]    [Pg.112]    [Pg.277]    [Pg.199]    [Pg.38]    [Pg.261]    [Pg.199]   


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Neighbouring group participation

Neighbouring-group

Participating group

Phenyl group

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