Ethyl acetylation

Various 4-, 5-, or 4,5-disubstituted 2-aryIamino thiazoles (124), R, = QH4R with R = 0-, m-, or p-Me, HO C, Cl, Br, H N, NHAc, NR2, OH, OR, or OjN, were obtained by condensing the corresponding N-arylthiourea with chloroacetone (81, 86, 423), dichloroacetone (510, 618), phenacyichloride or its p-substituted methyl, f-butyl, n-dodecyl or undecyl (653), or 2-chlorocyclohexanone (653) (Method A) or with 2-butanone (423), acetophenone or its p-substituted derivatives (399, 439), ethyl acetate (400), ethyl acetyl propionate (621), a- or 3-unsaturated ketones (691), benzylidene acetone, furfurylidene acetone, and mesityl oxide in the presence of Btj or Ij as condensing agent (Method B) (Table 11-17). 

Using a 6-in. Vigreux column with a wide side arm, the checkers observed a boiling point of 166-168°/3 mm. for ethyl < -acetyl-/3-(2,3-dimethoxyphenyl)propionate and 176-179°/ 2 mm. for the acrylate. 

Ethyl acetoacetate, 29, 214, 399, 540, 629, 794, 887,1075,1128, 1268-1269,1272 p-Ethylacetophenone, 946,1084-1085 Ethyl acetopynivate, 251 Ethyl o-acetoxyacetoacetate, 540 Ethyl o-acetO Qrhexanoic acid, 541 Ethyl acetylacetoacetate, 1097 Ethyl a-acetyl-f3-(2,3-dimethoxyphenyl> propionate, 896 Ethyl acetyl eburicoate, 615 Ethyl acrylate, 928 N-Ethylallenimine, 1637 Ethylamine, 103,372,574,575,578,579,770 Ethyl p-aminobenzoate, 890 Ethyl 3-aminocitrazinate, 520 Ethyl azidoformate, 363-364 Ethyl benzalmalonate, 888 Ethylbenzene, 226,567,576, 719, 779,1061, 1287... 

Acetyltyrosine Ethyl Ester [C13H17NO4H2O (Mr 269.3) ethyl / /-acetyl-L-tyroslnate monohydrate ethyl (S)-2-acetamido-3-(-4-hydroxyphenyl)-propionate monohydrate]... 

ETHYL ACETYL ACETATE (141-97-9) Forms explosive mixture with air (flash point 135°F/57°C). Incompatible with strong acids, nitrates, oxidizers. 

Amino acids are accessible by use of ethyl (acetylamino)malonate. Dittmer, Hert, and Chambers treated 2-(chloromethyl)thiophene with ethyl (acetyl-amino)malonate in the presence of sodium ethoxide, obtaining an 87% yield of -(acetylamino)-a>(2-thienyl)malonate which was converted into /3-(2-thienyl)alanine in 78% yield by boiling hydrobromic acid 390... 

Synonyms Acetoacetic acid ethyl ester Acetoacetic ester Diacetic ether Diacetyl ether EAA EEA Ethyl acetyl acetate Ethyl acelylacetonate Ethyl benzyl acetoacetate Ethyl 3-oxobutanoate Ethyl 3-oxobulyrate 3-Oxobutanoic acid ethyl ester Classification Aliphatic organic compd. 

Ethyl acetyl acetate Ethyl acetylacetonate. See Ethylacetoacetate... 

Acetyl ricinoleates n. Plasticizers, such as butyl and ethyl acetyl ricinoleates. They can be regarded as esters of acetylated rici-noleic acid. The hydroxy group in the rici-noleic chain has been acetylated or esterified, and the carboxylic group has also undergone esterification, but with an... 

Ethyl acetyl ricinoleate n. C17H32 (OCOCH3) COOC2H5. Properties bp, 400°C Sp gr, 0.931. 

An important type of copolymer is one in which the chain structure consists predominantly of one particular unit (A), such as in methyl ethyl, acetyl, halogen or branched polyethylenes. An approximate theory for the melting of this type of copolymer has been worked out by Flory (244), according to which... 

A soln. of Na in methanol added with stirring at lO to a soln. of ethyl acetyl-aminomalonate in anhydrous methylene chloride, then a soln. of anhydrous... 

The precursors of cyclophanes 161, i.e., podands 156 were prepared in four steps starting from 3-ethylquinoxalin-2-one 159 (Mamedov et al. 2(X)5a Kalinin and Mamedov 2009), the alkylation of which with dibromooxoalkanes leads to 160 with ethyl moieties. The transformation of ethyl acetyl fragments was accomplished in three stages bromination, the substitution of the bromine atom by the azide group, and conversion of azidoethyl fragments into acetyl function when heated in aqueous acetic acid. 

Ethyl acetate Ethyl acetyl acetate Methyl ethyl ketone... 

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