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Benzyl-diethyl

Benzyl-(diethyl-hydro-silyl)-methyl-E18, 739 (Imin-Hydrosilylier.)... [Pg.1069]

Evidence strongly supporting this latter mechanism was obtained by Cadogan and Foster, who subjected jSjS-dimethylphenylethyl diethyl phosphite and benzyl diethyl phosphite to peroxide-catalyzed reaction with carbon tetrachloride. These workers showed by careful gas chromatography the absence of any products expected from the rearrangement, dimerization or disproportionation of free /3j(3-dimethyl-phenylethyl (PhCMe2CH2 ) or benzyl radicals. [Pg.70]

Benzylphosphonic acid esters. A soln. of benzyl diethyl phosphite (0.1-0.2 M) in deoxygenated benzene irradiated in a quartz tube with a 450 W medium-pressure Hg-lamp - diethyl benzylphosphonate. Y 85-95%. With chiral O-benzyl groups, reaction proceeds with complete retention of configuration at the chiral carbon, F.e.s. W.G. Bentrude et al., J. Am. Chem. Soc. 110, 6908-9 (1988) stereochemistry s.a. Tetrahedron Letters 30, 1025-8 (1989). [Pg.398]

Cation and solvent hydrogen bonding to the hydrophilic phosphate group of the anion BNPPA (l,l-binaphthyl-2-diyl phosphate) (71) leads to bilayers with an interior hydrophilic region and with hydrophobic binaphthyl groups on both exterior sides.A simple thiophosphate-based method for 2-alkylidenation of lactones has been described. Phosphorus-derived chiral auxiliaries for a-alkylation of secondary amines by anodic oxidation has been elaborated. lodotrimethyl-sUane, which is routinely used for the dealkylation of ethers and esters, may be used to iodinate allyl or benzyl diethyl phosphates. ... [Pg.131]

Thiirans are obtained in good yields (61—78%) by treatment of aldehydes and ketones with the lithium salt of 4,4-dimethyl-2-(methylthio)-A -oxazoline (4). Other sulphur-stabilized carbanions may similarly be used, e.g. the lithium salts of 2-(alkylthio)thiazolidines, 2-(benzylthio)pyridine, and benzyl diethyl-dithiocarbamate. ... [Pg.188]

FIGURE 1.3 Examples of polycations (a) polyfdiallyl dimethyl ammonium chloride), (b) poly(vinyl benzyl phosphonium bromide), and (c) polyfvinyl benzyl diethyl sulfonium iodide). [Pg.3]

The following liquids may be used (boiling points are given in parentheses) — chlorobenzene (132-3°) bromobenzene (155°) p cymene (176°) o-dichloro-benzene (180°) aniline (184°) methyl benzoate (200°) teti-alin (207°) ethyl benzoate (212°) 1 2 4-trichlorobenzene (213°) iaopropyl benzoate (218°) methyl salicylate (223°) n-propyl benzoate (231°) diethyleneglycol (244°) n-butyl benzoate (250°) diphenyl (255°) diphenyl ether (259°) dimethyl phth ate (282°) diethyl phthalate (296°) diphenylamine (302°) benzophenone (305)° benzyl benzoate (316°). [Pg.61]

Successful results have been obtained (Renfrew and Chaney, 1946) with ethyl formate methyl, ethyl, n-propyl, iso-propyl, n-butyl, iso-butyl, sec.-butyl and iso-amyl acetat ethyleneglycol diacetate ethyl monochloro- and trichloro-acetates methyl, n-propyl, n-octyl and n-dodecyl propionates ethyl butyrate n-butyl and n-amyl valerates ethyl laurate ethyl lactate ethyl acetoacetate diethyl carbonate dimethyl and diethyl oxalates diethyl malonate diethyl adipate di-n-butyl tartrate ethyl phenylacetate methyl and ethyl benzoates methyl and ethyl salicylates diethyl and di-n-butyl phthalates. The method fails for vinyl acetate, ieri.-butyl acetate, n-octadecyl propionate, ethyl and >i-butyl stearate, phenyl, benzyl- and guaicol-acetate, methyl and ethyl cinnamate, diethyl sulphate and ethyl p-aminobenzoate. [Pg.393]

Alkylations of cinnolin-4(lf/)-one (8) with methyl iodide, ethyl iodide, dimethyl and diethyl sulfates, isopropyl bromide, benzyl chloride, etc. take place predominantly at position 2 to give 2-alkyl-4-hydroxycinnolinium anhydro salts (83), together with small amounts of l-methylcinnolin-4-one (84). [Pg.16]

Various alkylating agents are used for the preparation of pyridazinyl alkyl sulfides. Methyl and ethyl iodides, dimethyl and diethyl sulfate, a-halo acids and esters, /3-halo acids and their derivatives, a-halo ketones, benzyl halides and substituted benzyl halides and other alkyl and heteroarylmethyl halides are most commonly used for this purpose. Another method is the addition of pyridazinethiones and pyridazinethiols to unsaturated compounds, such as 2,3(4//)-dihydropyran or 2,3(4//)-dihydrothiopyran, and to compounds with activated double bonds, such as acrylonitrile, acrylates and quinones. [Pg.36]

When the N-1 atom of salts of type (71) bears two prochiral groups an anisochrony of protons analogous to that of diethyl acetals is observed. For instance in compound (74) the benzylic protons show chemical shifts at 8 4.98 and 5.99p.p.m. with Ja.b = 12.2Hz (690MR(1)249). [Pg.189]

Peroxides. These are formed by aerial oxidation or by autoxidation of a wide range of organic compounds, including diethyl ether, allyl ethyl ether, allyl phenyl ether, dibenzyl ether, benzyl butyl ether, n-butyl ether, iso-butyl ether, r-butyl ether, dioxane, tetrahydrofuran, olefins, and aromatic and saturated aliphatic hydrocarbons. They accumulate during distillation and can detonate violently on evaporation or distillation when their concentration becomes high. If peroxides are likely to be present materials should be tested for peroxides before distillation (for tests see entry under "Ethers", in Chapter 2). Also, distillation should be discontinued when at least one quarter of the residue is left in the distilling flask. [Pg.5]

Water with aniline, benzene, benzyl alcohol, carbon disulfide, carbon tetrachloride, chloroform, cyclohexane, cyclohexanol, cyclohexanone, diethyl ether, ethyl acetate, isoamyl alcohol, methyl ethyl ketone, nitromethane, tributyl phosphate or toluene. [Pg.30]

Crystd from EtOH or diethyl ether. For N-benzyl chloride see entry in Chapter 6. [Pg.521]

This procedure is an adaption of one described by Hauser and Chambers. Previous preparations include the benzylation of diethyl phenylmalonate followed by hydrolysis, the benzylation of phenylacetonitrile followed by hydrolysis, the benzylation of phenylacetic acid through the Ivanov reagent, and the reduction of oi-phenylcinnamic acid using sodium amalgam. ... [Pg.40]

Reaction of 2-aminopyridine with dimethyl 2-methylmalonate in the presence of some drops of cone. HCl at 150°C for 1 h (96EUP733633), and with diethyl 2-(l-decyl)malonate at 120°C for 5 min (94JCR(S)206) gave 2-hydroxy-3-methyl- and 2-hydroxy-3-(l-decyl)-4//-pyrido[l, 2-n]pyrimidin-4-ones in 2.2% and 7.5% yields, respectively. Reaction of 3-benzyl-2-aminopyridine and diethylmalonate at 190-200 °C for 4 h yielded 9-benzyl-2-hydroxy-4//-pyrido[l, 2-n]pyrimidin-4-one (01MIP9). Cyclocondensation... [Pg.243]

The catalyst is filtered off at elevated temperature, and the filtrate is concentrated by evaporation under reduced pressure to a volume of 300 ml and added in a thin stream to 2.5 liters of diethyl ether with mechanical agitation. The precipitate is separated, washed with diethyl ether and dried in vacuo at 80° to 85°C for several hours. 325 g (96% yield) of the neutral tartrate of 1-(p-hydroxyphenyl)-2-(4-benzyl-piperidino)propan-1-ol are obtained. [Pg.802]


See other pages where Benzyl-diethyl is mentioned: [Pg.1870]    [Pg.932]    [Pg.997]    [Pg.118]    [Pg.1008]    [Pg.918]    [Pg.285]    [Pg.285]    [Pg.338]    [Pg.3]    [Pg.356]    [Pg.1870]    [Pg.932]    [Pg.997]    [Pg.118]    [Pg.1008]    [Pg.918]    [Pg.285]    [Pg.285]    [Pg.338]    [Pg.3]    [Pg.356]    [Pg.517]    [Pg.736]    [Pg.769]    [Pg.54]    [Pg.139]    [Pg.222]    [Pg.316]    [Pg.244]    [Pg.113]    [Pg.138]    [Pg.91]    [Pg.236]    [Pg.126]    [Pg.620]    [Pg.620]    [Pg.1117]    [Pg.1117]   
See also in sourсe #XX -- [ Pg.932 , Pg.997 ]




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Benzyl diethyl phosphite

Diethyl benzyl malonate

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