Chlori nation

Butadiene is not only the most important monomer for synthetic ruh-her production, hut also a chemical intermediate with a high potential for producing useful compounds such as sulfolane hy reaction with SO2, 1,4-hutanediol hy acetoxylation-hydrogenation, and chloroprene hy chlori-nation-dehydrochlorination. [Pg.238]

Whereas a-chlori nation of sulfones usually constitutes a problem, thiane oxides are easily chlorinated at the a-position by a wide spectrum of chlorinating agents338. The mechanism is similar to that with carbonyl groups339. [Pg.469]

Holocellulose Cellulosic material obtainable from wood after removal of lignin. The term therefore means total carbohydrates (cellulose and hemicellulose) present in the wood (Refs 1 2) Ritter (Ref 3) succeded in isolating holocellulose from wood pulp by repeated chlori-nations, followed by extraction with alcohol containing 3% of monoethanolamine. The resulting product was white but changed color on standing... [Pg.166]

OL-Chlorination of carboxylic acids.2 A Hell-Volhard-Zelinsky type of a-chlori-nation of carboxylic acids with chlorosulfonic acid is possible if a competing free radical chlorination is suppressed. For this purpose, 1 is superior to oxygen 3 in addition, the reaction is applicable to both short- and long-chain acids (equation I). [Pg.464]

Only unrearranged cyclopropyl products were reported for photochemical chlori-nation and vapor phase nitration of cyclopropane. The Hunsdiecker reaction of silver cyclopropanecarboxylate and the thermal decomposition of cyclopropanoyl peroxide also gave exclusively unrearranged product as did the di-t-butyl peroxide initiated decarbonylation of 1-methyl and 1-phenylcyclopropanecarboxaldehyde. In general one can predict that when a good radical scavenger, solvent or substrate, is present in the reaction, unrearranged product will result (i.e. see Tables 11 and 13). [Pg.726]

Acetylene hydro- chlori- nation Ethylene dicliinrido Itula need acetylene/ ethylene process ( rude oil pyrolysis und in ethylene Fluidized I red dichloridc, > Fixed bed set Hydro- chloric aeitl cotes... [Pg.187]

Mixed phase Vapor, phase pyrolysis chlori- nation Air (isygen Air Oxygen Chlorine... [Pg.187]

Bromimtion. The combination of bromine and chlorine effects, under irradiation, bromination at the site where chlorine normally appears in chlori-nations. The reaction is catalyzed by the hydrogen chloride formed. Straight... [Pg.102]

Lionel, D., Pierre, L., Keith, S. 1993. Heightened selectivity in aromatic nitrations and chlori-nations hy the use of solid supports and catalysts. Acc. Chem. Res. 26 607-613. [Pg.299]

Halland N, Braunton A, Bachmann S, Marigo M, Jprgensen KA. Direct organocatalytic asymmetric a-chlori nation of aldehydes. J. Am. Chem. Soc. 2004 126(15) 4790-4791. [Pg.1299]

Components, kg Raw materials Interme- diates By-prod ucts Aqueous streams Direct chlori-. a nation Vent streams Oxychlorination Distillation columns Product... [Pg.416]

Draw and name the monochlorination products you might obtain by radical chlori- V nation of 2-methylpentane. Which of the products are chiral Are any of the prod>j ucts optically active ... [Pg.380]

Hydrochloric acid (31%) from incineration of chlori- 90 000 nation residues... [Pg.30]

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