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Anhydrides organic-inorganic

Alcohols can also be acylated by mixed organic-inorganic anhydrides, such as acetic-phosphoric anhydride, MeCOOPO(OH)2 (see 10-35). ... [Pg.483]

Preparation of Mixed Organic-Inorganic Anhydrides Nitrooxy-de-acyloxy-substitution... [Pg.405]

Chemical Properties. A combination of excellent chemical and mechanical properties at elevated temperatures result in high performance service in the chemical processing industry. Teflon PEA resins have been exposed to a variety of organic and inorganic compounds commonly encountered in chemical service (26). They are not attacked by inorganic acids, bases, halogens, metal salt solutions, organic acids, and anhydrides. Aromatic and ahphatic hydrocarbons, alcohols, aldehydes, ketones, ethers, amines, esters, chlorinated compounds, and other polymer solvents have Httle effect. However, like other perfluorinated polymers,they react with alkah metals and elemental fluorine. [Pg.375]

Esterification. Esters are formed by the reaction of ethanol with inorganic and organic acids, acid anhydrides, and acid halides. If the inorganic acid is oxygenated, eg, sulfuric acid, nitric acid, the ester has a carbon—oxygen linkage that is easily hydrolyzed (24—26). [Pg.403]

The preferred catalysts are salts of inorganic and organic acids as well as tertiary amines. Phthalic anhydride, succinic anhydride and maleic anhydride are typical acid anhydrides, while ethylene oxide, propylene oxide, epichlorohydrin and phenyl glycidyl ether are typical epoxides. The synthesis of a ladder polymer was carried out by using bisanhydrides264. ... [Pg.22]

The solvent system N2O4/DMF has been employed for the preparation of inorganic esters, e.g., phosphates and sulfates [221] as well as organic esters. The latter products were obtained by reacting the polymer with acyl chlorides, or acid anhydrides in the presence of a pyridine base. The nitrite ester formed has been successfully trans-esterified by the reaction with RCOCl... [Pg.138]

Whereas imidazolides of nucleotides react only in organic solvents with phosphates or pyrophosphates to give the corresponding anhydride derivatives in high yield, ATP can also be formed enzymatically in aqueous solution from AMP-Im with inorganic pyrophosphate in the presence of valyl-f-RNA synthetase.[66] A variant of this method is the one-pot reaction of a nucleoside with phosphoryltristriazole and tributylammonium pyrophosphate. 671 An a-methylphosphonyl-/ ,y-diphosphate of a thymidine derivative has been synthesized in a similar way t681... [Pg.255]

Examples Sodium Titanium tetrachloride Boron trifluoride Acetic anhydride Examples Most organic and inorganic materials are not water reactive... [Pg.57]

A plethora of weakly acidic pharmaceutical substances may be titrated effectively by making use of a suitable non-aqueous solvent with a sharp end-point. The wide spectrum of such organic compounds include anhydrides, acids, amino acids, acid halides, enols (viz., barbiturates), xanthines, sulphonamides, phenols, imides and lastly the organic salts of inorganic acids. [Pg.117]

Commodities are large-volume, low-price, homogeneous, and standardized chemicals produced in dedicated plants and used for a large variety of applications. Prices are cyclic and fully transparent. Petrochemicals, basic chemicals, heavy organic and inorganic chemicals (large-volume) monomers, commodity fibers, and plastics are all part of commodities. Typical examples of single products are ethylene, propylene, caprolactame, methanol, BTX (benzene, toluene, xylenes), phthalic anhydride, poly (vinyl chloride) soda, and sulfuric acid. [Pg.5]


See other pages where Anhydrides organic-inorganic is mentioned: [Pg.494]    [Pg.494]    [Pg.405]    [Pg.948]    [Pg.278]    [Pg.1424]    [Pg.158]    [Pg.8]    [Pg.385]    [Pg.259]    [Pg.507]    [Pg.116]    [Pg.39]    [Pg.144]    [Pg.1082]    [Pg.85]    [Pg.606]    [Pg.296]    [Pg.444]    [Pg.265]    [Pg.128]    [Pg.948]    [Pg.161]    [Pg.55]    [Pg.157]    [Pg.100]    [Pg.62]    [Pg.321]    [Pg.960]    [Pg.434]    [Pg.251]    [Pg.149]    [Pg.96]    [Pg.167]    [Pg.151]   
See also in sourсe #XX -- [ Pg.494 ]




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