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Acetalation agents

Organofluorine Compounds and Fluorinating Agents. Part 21 Perfluoroalkylidene Sugars by Non-Classical Acetalation of Pyranoses ... [Pg.476]

Solution Polymerization. Solution polymerization of vinyl acetale is carried out mainly as an intermediate step to the manufacture of poly(vinyl alcohol). A small amount of solution-polymerized vinyl acetate is prepared for the merchant market. When solution polymerization is carried out, the solvent acts as a chain-transfer agent, and depending on its transfer constant, has an effect on the molecular weight of the product. Continuous solution polymers of poly(vinyl acetatei in tubular reactors have been prepared at high yield and throughput... [Pg.1678]

It has been claimed that acetalation of25 with acetone-sulfuric acid (or other dehydrating agent) in the presence of ultrasonic waves lessens the time of reaction (to <70 min), and 26 may be isolated in 76% yield.109 In addition, several reports have been published on the use of other acid catalysts, namely, zinc chloride-phosphoric acid,110... [Pg.92]

See other pages where Acetalation agents is mentioned: [Pg.151]    [Pg.151]    [Pg.116]    [Pg.67]    [Pg.544]    [Pg.67]    [Pg.1216]   
See also in sourсe #XX -- [ Pg.76 ]

See also in sourсe #XX -- [ Pg.39 , Pg.76 ]



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Acetalation

Acetale

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