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Succinic anhydride hydrolyzes readily to give succinic acid: (CH 2 CO) 2 O + H 2 O → (CH 2 CO 2 H) 2. With alcohols (ROH), a similar reaction occurs, delivering the monoester: (CH 2 CO) 2 O + ROH → RO 2 CCH 2 CH 2 CO 2 H. Succinic anhydride is used in acylations under Friedel-Crafts conditions, as illustrated by the industrial route to the ...
The patent describes the reaction of the alkenes with excess maleic anhydride at 200 °C in an autoclave. The excess alkene is removed by distillation in vacuo, the resulting alkenyl succinic anhydride hydrolyzed with dilute sodium hydroxide solution and the disodium salt reacted with an acid to achieve an alkenebutanedioic acid.
The presence of isomers other than isobutylene can have several effects including: 1) lower reactivity due to steric hindrance at the terminal carbon in, e.g., manufacture of polyisobutenyl succinic anhydride (PIBSA) dispersant manufacture; 2) the molecular weight—viscosity relationships of the two materials may also be somewhat different. [1]
PolyAnalytik Inc. is a Canadian contract research organization, headquartered in London, Ontario, Established in 2007, PolyAnalytik specializing in the analysis of polymers, bio-polymers & small molecules, offering a wide range of services including pre-clinical studies, bio-processing, and purification.
Linear alpha olefins are, once again, isomerized into linear internal olefins are then reacted with maleic anhydride to make an alkyl succinic anhydride (ASA), a popular paper sizing chemical. C 20 - C 30 linear alpha olefins production capacity is only 5-10% of the total production of a linear alpha olefin plant.
In this reaction, an arene is reacted with succinic anhydride, the subsequent product is then reduced in either a Clemmensen reduction or a Wolff-Kishner reduction. Lastly, a second Friedel-Crafts acylation takes place with addition of acid. [27]
Succinic anhydride; T. Tautomycetin; Tautomycin; Tetrahydrophthalic anhydride; Trifluoroacetic anhydride; 1,3,5-Trioxanetrione This page was last edited on 30 July ...
R)-β-butyrolactone reacts in toluene at approx. 14 bar CO pressure and 55 °C in the presence of a salen complex within 24 h with inversion of the configuration in 94% yield to optically pure (> 99% ee) (S)-methyl succinic anhydride. [13] Carbonylierung von β-BL zu 2-Methylsuccinanhydrid