Ethylacetoacetic ester

Ethylacetoacetic ester (ethyl), 7, 62 Ethyl Acetone Dicarboxylate, 5,... 

It was proposed to synthesize 6-phosphorylated indoles 174 [189] by the Japp-Klingemann reaction. Diazotization of m- di hydroxyphosphoryl)aniline followed by the reaction of the diazo compound with ethylacetoacetic ester gave w-phosphorylphenylhydrazone of ethyl a-ketobutyrate, which was used for the synthesis of the desired compound 174. 

Ethylacetoacetic ester boils at 198°. The yield should be about 22 grams. 

Preparation 68.—Ethyl Ethylacetoacetate [Ethyl ester of 2-ethyl-Z-on hutan acid],... 

Ethylacetoacetic Acid, E thy lace toacetate or Acetoacetic Ester,... 

None of the products formed in the reactions described above is considered to significantly change the reaction rates and product distributions by acting as a catalyst. However, Siskin et al. [106] reported that in the hydrolysis of methyl 1-naphthoate at 343 °C naphthalene was predominantly formed because the potential for autocatalysis arises. They concluded that decarboxylation of naphthoic acid, the main product at a lower temperature of 250 °C, led to the formation of naphthalene at 343 °C the reaction is catalyzed by the generated carbonic acid. In the hydrolysis of typical p-keto esters, ethylacetoacetate was completely converted to acetone, eAanol, and CO2 within 30 min at 250 °C. Under the same conditions, r-butyl acetate degraded into a bright red, insoluble mixture of unidentifled products resulting from polymerization of isobutylene [107]. 

The Hantzsch pyridine synthesis is the condensation of two equivalents of a P-dicarbonyl compound such as ethylacetoacetate, one equivalent of an aldehyde, and one equivalent of a nitrogen donor such as ammonia (or ammonium acetate) in refluxing alcohol or acetic acid. The immediate resulted from this three-component coupling, 1,4-dihydropyridine 138, is then oxidized, driven by aromatization, to substituted pyridine 139. Saponification and decarboxylation of the 3,5-ester substituents then leads to symmetric 2,4,6-tri-substituted pyridine 140. 

Acetic acid vinyl ester polymers. See Polyvinyl acetate Acetic acid, zirconium salt. See Zirconium acetate Acetic aldehyde. See Acetaldehyde Acetic ester Acetic ether. See Ethyl acetate Acetic, 1,2,3-propanetriyl ester Acetin. See Triacetin Acetoacetic acid ethyl ester. See Ethylacetoacetate Acetoacetic acid, 2-hydroxyethyl ester, acrylate. See 2-(Acetoacetoxy) ethyl acrylate... 

Ethyl acetic ester. See Ethyl acetate Ethylacetoacetate... 

Oxobutanoic acid ethyl ester. See Ethylacetoacetate a-Oxodiphenylmethane. See Benzophenone... 

Acetoacetic ester. See Ethylacetoacetate Acetoacetone. See Acetylacetone 2-(Acetoacetoxy) ethyl acrylate CAS 21282-96-2... 

Diacetatopalladium. See Palladium diacetate Diacetic ether. See Ethylacetoacetate Diacetin (INCI). See Glyceryl diacetate Diacetone. See Diacetone alcohol Diacetone acrylamide CAS 2873-97-4 EINECS/ELINCS 220-713-2 Synonyms Acrylamide, N-(1-1dimethyl-3-oxobutyl)- 4-Acrylamido-4-methyl-2-pentanone DAA Diallyl ester acetic acid N-(1,1-Dimethyl-3-oxobutyl) acrylamide N-(1,1-Dimethyl-3-oxobutyl)-2-propenamide N-(2-(2-Methyl-4-oxopentyl)) acrylamide N-(2-Methyl-4-oxo-2-pentyl) acrylamide 2-Propenamide, N-(1,1-dimethyl-3-oxobutyl)-Classification Acrylamide Empirical C9H15NO2... 

Ethyl acetoacetate 3-ethylene acetal Ethylacetoacetate ethyleneglycol acetal Ethyl acetoacetate ethyleneglycol ketal. See Ethyl acetoacetate ethylene ketal Ethyl acetoacetate ethylene ketal CAS 6413-10-1 EINECS/ELINCS 229-114-0 Synonyms 1,3-Dioxolane-2-acetic acid, 2-methyl-, ethyl ester Ethyl acetoacetate 3-ethylene acetal Ethylacetoacetate ethyleneglycol acetal Ethyl acetoacetate ethyleneglycol ketal Ethyl 2-methyl-1,3-dioxolane-2-acetate... 

From the experimental results obtained three liquid-liquid systems have been selected to be included here aniline/water, ethylacetate/water and ethylacetoacetate/water. The selected surfactants are SDS (sodium dodecyl sulphate), which is anionic, DTAB (dodecyl tri-methyl ammonium bromide), which is cationic, and Atlas G1300 (polyoxyethylene triglyceride ester) which is non-ionic. 

Hagemann s-ester a compound prepared by treating a mixture of formaldehyde and ethylacetoacetate with base and then with acid and heat, half-chair conformation the least stable conformation of cyclohexane, haloform reaction the reaction of a halogen and HO — with a methyl ketone, halogenation reaction with halogen (Br, Cl, Ij). 

A mixture of ethylacetoacetate (65 g, 0.5 mol) and freshly distilled n-butyraldehyde (36 g, 0.55 mol) was cooled to -5 °C. Piperidine (0.5 g) in 1 g of alcohol was added slowly over 5-10 minutes so that the reaction temperature did not rise above +5 to 10 °C. The mixture was cooled to 0 °C and placed in a refrigerator for 12-24 h, after which the ester was washed with water containing a few drops of acetic acid (3 x 100 mL). The washings were extracted with ether, and the combined ether extract and ester layer were distilled in vacuum through a Widmer column. The yield of ethyl butylidineaceteoacetate was 71.4 g, 81%. 

The reaction of ethylcyanoacetate, ethylacetoacetate, or diethylmalonate as CH acids with pyrrole-2-carbodithioates leads to vinylpyrroles bearing the ester fnnc-tion (Scheme 2.90) [563,564]. 

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