Methoxy acetic acid

Acetic acid, methoxy- [625-45-6], 70 Acetic acid, phenoxy- [122-59-8], 68 Acetic acid, trifluoro-, anhydride [407-25-0], 125... 

Abietylamine, dehydro-, A tnfluoro- [Acetamide, 2,2,2-trifluoro-/V-[ [1,2,3,4,4a, 9,10,1 Oa-octahydro-l, 4a-dtmethyl-7-(l-methylethyl)-l -phenanthrenyl ] -methyl]-, [17 (la,4ad,10aa))-, 125 Acetamides, A-arylalkyl-, 7 Acetanilide, 2,2,2-tnfluoro- [Acetamide, 2,2,2-tnfluoroTV-phenyl-], 122 Acetic acid, cyano-, methyl ester, 63 Acetic acid, methoxy-, 70 Acetic acid, phenoxy-, 68 Acetic acid, phenyl- [Benzeneacetic acid],... 

Chemical Name Acetic acid, methoxy-, 2-(2-((3-(lH-benzimidazol-2-yl)propyl)methylamino)ethyl)-6-fluoro-l,2,3,4-tetrahydro-l-(l-methylethyl)-2-naphthalenyl ester, dihydrochloride, (lS-cis)-... 

Acetic acid, methoxy-H3CO-CH2-COOH Acetic acid, 2-(5-methyifuranyi)-... 

Unsaturation value can be determined by the reaction of the akyl or propenyl end group with mercuric acetate ia a methanolic solution to give acetoxymercuric methoxy compounds and acetic acid (ASTM D4671-87). The amount of acetic acid released ia this equimolar reaction is determined by titration with standard alcohoHc potassium hydroxide. Sodium bromide is normally added to convert the iasoluble mercuric oxide (a titration iaterference) to mercuric bromide. The value is usually expressed as meg KOH/g polyol which can be converted to OH No. units usiag multiplication by 56.1 or to percentage of vinyl usiag multiplication by 2.7. 

Fig. 8. Basic chemistry of acetoxy-based RTV sihcones. The reactions for curing methoxy-based RTV sihcones are the same in that case, the methoxy group (OCH ) replaces acetoxy (OOCCH ), and methanol (CH OH), rather than acetic acid (CH COOH), is formed.

The principal coloring matter in turmeric and its oleoresin is curcumin [458-37-7] (l,6-heptadiene-3,5-dione, l,7-bis[4-hydroxy-3-methoxy-phenyl] (45), an orange-yeUow, crystalline powder, insoluble in water and ether but soluble in ethanol and glacial acetic acid. It has a reported melting point of 180-183°C. 

Benzo[6]thiophene-3-acetic acid, 5-methoxy-synthesis, 4, 879... 

Methoxy-7)5-hydroxy-B-homo-estr-5(10)-en-17-one (70a) ° The buffered acetolysis solution is prepared by heating at reflux overnight a solution prepared from anhydrous potassium carbonate (3.5 g), acetic anhydride (5 ml) and glacial acetic acid (250 ml). 

Methoxy-D-Homo-estra-l,3,5(10)-trien-17a-one (96)" (/) Acetic acid (6.4 ml) is added to a stirred solution of estrone methyl ether (93 1.1 g) in ethanol (35 ml) containing potassium cyanide (6 g) at 0°. After being stirred for 1 hr at 0° and 2.5 hr at room temperature, the reactants dissolve and potassium acetate preciptates. Water (65 ml) is added to the reaction mixture and the precipitated solid is collected by filtration. The crude product is dissolved in ethyl acetate and the ethyl acetate solution is washed with water, dried over anhydrous magnesium sulfate and evaporated to dryness under reduced pressure. Recrystallization of a portion of the crude product from cyclohexane-acetone gives 3-methoxy-17a-cyano-estra-l, 3,5(10)-trien-17j5-ol (94a) as needles mp 158.5°. 

Apparently the role of methanol is to intercept unstable species which otherwise tend to polymerize or rearrange. The methoxy peroxide (72) can be isolated in crystalline form if desired, but it is preferable to treat the methylene dichloride solution at 0° with zinc dust and acetic acid until the mixture shows a negative potassium iodide test. The resulting crude seco-aldehyde (73) is then cyclized to (74) by stirring with neutral alumina in benzene at room temperature for 3 hr. ° Wechter has recently reported a number of transformations of a 5yS-hydroxy-6yS-formyl-B-norpregnane prepared in 8% yield by photolysis and hydrolysis of a 5a-hydroxy-6 -azidopregnane. 

Compare energies for the two alternative conjugate acids of methyl acetate (protonated methyl acetate and methoxy protonated methyl acetate) and dimethylacetamide (N-protonated dimethylacetamide and 0-protonated dimethylacetamide). Which acid in each pair is more stable Draw resonance contributors for the more stable conjugate acid for each system. 

The bromination of 7-methoxy-l-methyl-j8-carboline (harmine) was studied by Fischer. He obtained a compound, Ci3Hi2Br4N20, which he called tetrabromoharmine, by the action of bromine water on a dilute sulfuric acid solution of harmine. The bromination of harmine was reinvestigated by Hasenfratz, who found that two products (both hydrobromides) could be isolated when harmine was treated with bromine in aqueous acetic acid. The major component formed colorless needles and was called bromoharmine hydrobromide (free base colorless needles, m.p. 275°), while the product obtained in lesser amount was a canary-yellow dihydrate which was named isobromoharmine hydrobromide (free base colorless needles, m.p. 

When the aldehyde is heated on the water-bath with 25 per cent, hydrochloric acid, it yields a triphenylmethane derivative, nonamethoxy-triphenylmethane, a body consisting of snow-white crystals, melting at 184 5°. The action of concentrated nitric acid upon the solution in glacial acetic acid of this triphenylmethane derivative gives rise to 1, 2, 5-trimethoxy-4-nitrobenzene (melting at 130°). With bromine, nonamethoxytriphenylmethane combines, with separation of a molecule of trimethoxy bromobenzene, into a tribromo additive compound of hexamethoxy diphenylmethane, a deep violet-blue body. The 1, 2, 5-tri-methoxy-4-bromobenzene (melting at 54 5°) may be obtained more readily from asaronic acid. 

To a solution of vanillin in toluene is added nitroethane, butylamine and glacial acetic acid. The mixture is refluxed and the water of reaction is steadily azeotropically removed by distillation. After the theoretical amount of water is distilled out, distillation Is continued to remove excess reactants. The last trace of excess reactants is then removed at room temperature under a vacuum. The product is then triturated with a hydrocarbon solvent such as Skellysolve B and is thus obtained in a crystalline state. In general, however, it is preferred to dissolve the residue directly In toluene for use in the next step, without isolating the 1-(2-nitropropen-1-y I )-4-hydroxy-3-methoxy benzene. 

To a refluxing solu tion of 100 g of allyl urea and 600 ml of absolute methanol there was added with stirring a suspension of 319 g of mercuric acetate and 600 ml of absolute methanol and 60 ml of glacial acetate acid complete solution resulted. After 6 hours of refluxing, the solution was cooled and clarified by filtration. To this solution there were added 50 g of sodium chloride and 240 ml of water. After a short time a heavy white precipitate settled out. This precipitate, which wes3-chloromercuri-2-methoxy-propylurea, was filtered, washed and dried. 

Methoxy-4-ethoxyphenyl acetic acid Phosphorus oxychloride Sodium hydroxide... 

A mixture of 16.3 g of 4-methyl-6-methoxy-2-pyrimidinyl-hydrazine, 13.7 g of ethyl acetoacetate and 16.3 ml of methanol was refluxed 2 hours on a water bath. After a mixture of 4.7 g of sodium hydroxide, 4.7 ml of water and 27 ml of methanol was added dropwise thereto at about 50°C, the reaction mixture was refluxed for 2 hours more, then methanol was distilled off and the residue was dissolved in 130 ml of water. The solution was adjusted to pH 6 with acetic acid. The precipitate was filtered, washed with water and dried to give 24 g (yield 95.3%) of crystals, MP 97° to 98°C. Recrystallization from ligroin gave 1-(4 -methyl-6 -methoxy-2 -pyrimidinyl)-3-methyl-3-pyrazoline-5-one, MP 102° to 103°C. 

Chemical Name 1-(p-chlorobenzoyl)-5-methoxy-2-methylindole-3-acetic acid Common Name —... 

Methyl-5-methoxy-3-mdolyl acetic acid Sodium hydride... 

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