Orthocarbonates

The prefix is also used in orthophosphates, orthocarbonates, orthoformates and ortho-silicates, which are derivatives of POCOH), the hypothetical C(OH)4, HC(OH)3 and Si(OH)4 respectively in these the word ortho is always written in full. [Pg.290]

Magnesium methylate is used as a drying agent for alcohols and other organic solvents and as an intermediate in various manufacturing processes, eg, for organomagnesium compounds (79), orthocarbonic esters (80), and for oxide coatings. [Pg.27]

Diethylene orthocarbonate, C(—0CH2CH20- )2/Ts0H or wet BF3 Et20, CHCI3, 20° 70-9STo yield. ... [Pg.191]

Tetraethyl orthocarbonate (ethyl orthocarbonate, tetraethoxy ethane) [78-09-1] M... [Pg.360]

Condensation of prednisone, 40 with tetraethyl orthocarbonate leads to the cyelie ortho-carbonate 41 liydrolysis proceeds by protonation on the most accessible ether oxygen (that on carbon 21) to give the 17 mixed carbonate ester 42. Acylation with propionyl chloride proceeds on the remaining hydroxyl group to afford prednicarbate (43) [10],... [Pg.71]

Lithium-tetradeuterido-aluminat setzt Kohlensaure-diestcr (S. 126), Carbonsauren (S. 150), Orthocarbon-saure-triester (S. 445), Carbonsaure-amide (S. 236) und Nitrile (S. Ill und 120) zu deuterierten Reduktions-produkten um. [Pg.28]

CgHigOj 112-60-7) see lotroxic acid tetraethyf orthocarbonate see under ethyl orthocarbonate... [Pg.2443]

Choi, N. S., and Heller, J., Structured orthoesters and orthocarbonate drug delivery devices, U.S. Patent 4,131,648, December 26, 1978. [Pg.159]

Ethylenimine, 30, 38 toxic properties of, 30, 40 Ethyl o-ethoxybenzoate, 32, 75 Ethyl formate, 32, 32 Ethyl glycidyl ether, 31, 3 2-Ethylhexanaldoxime, 32, 67 2-Ethylhexanamide, 32, 65 2-Ethylhexanoic acid, 32, 66 2-Ethylhexanonitrile, 32, 65 Ethylidene bromide, 32, 55 Ethyl iodide, 31, 34 Ethyl isodehydroacetate, 32, 76 Ethyl lactate, 31, 59, 60 5-ETHYL-2-METHYLPYRIDINE, 30, 41 Ethyl orthocarbonate, 32, 68 Ethyl orthoformate, 32, 5 Ethyl orthosilicate, 32, 5 Ethyl phenylazoacetoacetate, 32, 85 Ethyl phenylcyanoacetate, 30,43,80 Ethyl 0-phenyl-/3-cyanopropionate, 30, 84... [Pg.55]

Sulfur-containing spiro orthocarbonates, cationic polymerization of, 23 729 Sulfur-cured EPDM, 21 8041. See also Ethylene- propylene-diene monomer (EPDM) rubber Sulfur deposits... [Pg.903]

Sodium dinitromethanide, 0384 Sodium 5-(dinitromethyl)tetrazolide, 0681 Sodium 1,1,2,2-tetranitroethanediide, 1007 Sodium 2,2,2-trinitroethanide, 0713 Tetrakis(2,2,2-trinitroethyl) orthocarbonate, 3132... [Pg.347]

Both tris(2,2,2-trinitroethyl)orthoformate and tetrakis(2,2,2-trinitroethyl)-orthocar-bonate form powerfully explosive solutions in nitromethane. The oxygen balance of the esters are +154 and +182%, respectively. The compounds are Tetrakis(2,2,2-trinitroethyl)orthocarbonate, 3132 Tris(2,2,2-trinitroethyl) orthoformate, 2786 See OXYGEN BALANCE, POLYNITROALKYL COMPOUNDS... [Pg.411]

Orthoesters of polynitroaliphatic alcohols have been synthesized in the presence of metal chloride Lewis acid catalysts. Tetrakis(2,2,2-trinitroethyl)orthocarbonate (180) and tris(2,2,2-trinitroethyl)orthoformate (181) are obtained from the reaction of 2,2,2-trinitroethanol (159) with carbon tetrachloride and chloroform, respectively, in the presence of anhydrous ferric chloride.333729 Analogous reactions with 2-fluoro-2,2-dinitroethanol have been reported.3 ... [Pg.48]

Guanidines have been prepared by the reaction between an amine, or an amine salt, and a host of other reagents, such as a thiourea in the presence of lead or mercuric oxide [83, 157, 158], carbodi-imides [140, 174, 175],calcium cyanamide [176, 177], isonitrile dichlorides [178—180], chloroformamidines [181], dialkyl imidocarbonates [182], orthocarbonate esters [183], trichloro-methanesulphenyl chloride [184], and nitro- or nitroso-guanidines [185-188]. Substituted ureas can furnish guanidines, either by treatment with amines and phosphorus oxychloride [189], or by reaction with phenylisocyanate [190] or phosgene [191]. [Pg.133]

ETHYL ORTHOCARBONATE (Orthocarbonic acid, tetraethyl ester)... [Pg.68]

The above procedure is essentially that of Tieckelmann and Post.3 Ethyl orthocarbonate has been prepared by the reaction of chloropicrin and sodium ethoxide by Bassett4 and Rose.5 Thiocarbonyl perchloride has been reported 3 6 to react with sodium ethoxide to give good yields of ethyl orthocarbonate. [Pg.69]

Cl Atom as Part of an Acetal- and Orthocarboxylic or Orthocarbonic Acid Function ... [Pg.98]

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