Ethanoic

Systematic names for carboxylic acids are derived by counting the number of car bons m the longest continuous chain that includes the carboxyl group and replacing the e ending of the corresponding alkane by oic acid The first three acids m Table 19 1 methanoic (1 carbon) ethanoic (2 carbons) and octadecanoic acid (18 carbons) illus trate this point When substituents are present their locations are identified by number... 

Synonyms 2-Acetoxypentane sec-Amyl ethanoate BRN 1721249 1-Methylbutyl acetate 1-Methylbutyl ethanoate 2-Pentanol acetate 2-Pentyl acetate sec-Pentyl acetate 2-Pentyl ethanoate 5ec-Pentyl ethanoate UN 1104. 

Synonyms Acetic acid, 2-butoxy ester Acetic acid, sec-butyl ester Acetic acid, 1-methylpropyl ester BRN 1720689 2-BuAc sec-BuAc 2-Butanol acetate sec-Butanol acetate 2-Butanol ethanoate 2-Butyl acetate sec-Butyl alcohol acetate sec-Butyl ethanoate EINECS 203-300-1 Ethanoic acid, 1-methylpropyl ester 1-Methylpropyl acetate 1-Methylpropyl ethanoate NSC 8034 UN 1123. 

Synonyms Acetic acid, isobutyl ester Acetic acid, 2-methylpropyl ester AI3-15305 BRN 1741909 EINECS 203-745-1 FEMA No. 2175 IsoBuAc Isobutyl ethanoate 2-Methylpropyl acetate 2-Methyl-l-propyl acetate P-Methylpropyl ethanoate NSC 8035 UN 1213. 

Senol, A. Vapor liquid equilibria of the systems ethyl ethanoate + 2-methyl-2-butanol, 2-methyl-l-propanol + 3-methyl-l-butanol, and cyclohexanol + benzyl alcohol at 101.32 kPa, J. Chem. Eng. Data, 43(5) 763-769, 1998. 

The cyclobutane rings of 1,2-ethano[2.n]cyclophanes can be opened in a Birch reduction at — 60°C in tetrahydrofuran and liquid ammonia to give [4.n]cyclophanes.212-214 In this manner, macrocyclic rings with twelve, thirteen, fourteen, fifteen, sixteen, seventeen, eighteen and twenty-seven members have been synthesized. 

Ethanoate 2.2.2-Trifluoro-ethyl Difiuoro-fluorosulfonyl- ElOa, 373 (Kduct)... 

Ethanoate 2,4-Dinitro-phenyl-iritluoro- ElOa. 371 (Educt)... 

Ethanoate 2(or3- or4)-Nitro-phenvl Trifluoro- ElOa. 371 (Educt) ElOb, 556 (Educt) EI0b2. 51 (Ar-CO -+ Ar-O-CO)... 

Exercise 10-6 Addition of chlorine to frans-2-butene in ethanoic acid (acetic acid, CH3C02H) as solvent gives 74% meso-2,3-dichlorobutane, 1, 24% 2-chloro-1-methyl-propyl ethanoate, 2, and 2% 3-chloro-1-butene, 3. (Note 2 is formed as a d,l pair, although only one enantiomer is shown here.)... 

When a small amount of a strong acid is added is added to the solution containing the buffer, there is an excess of H+ ions which upsets the position of the equilibrium in (1) and, in accordance with Le Chatelier s Principle, causes a shift to the left in order to remove those ions. A weak acid such as ethanoic can only remove so many H" ions by shifting its equilibrium position the addition of an ionic salt to a buffer solution, in this case sodium ethanoate (2), produces many more ethanoate ions which can then combine with any excess H+ ions [not removed by (1)]. This forms the weak ethanoic add, and so restores the pH of the solution. 

Among sugar modified phosphoramidite derivatives prepared this year are 3, 5 -ethano-2 -deoxyribonucleoside derivatives (118), the 4, 6 -methano carbocyclic thymidine derivative (119), a 2 -0-methyl-6,3 -ethanouridine derivative (120), (R)- and (S)-3, 4 -seco-thymidine derivatives, e.g. (121), and arabino derivatives (122). The first three are conformationally rigid nucleoside analogues, and were made in order to prepare oligonucleotide analogues which bind better... 

Octatetraene, 3,4-Dimethylene-1,5-hexadiene, Bicyclo[4.2.0]hexa-1,5-diene, 1,2-Divinylcyclobutene, 2,3-Dimethylenebicyclo[2.2.0]hexane, 1,4-Ethano-2-methylene-spiropentane, 1 -Allyl-2-vinylcyclopropene... 

Pyrolysis of l,4-ethano-2-methylenespiropentane at 120 C results in a methylene-cyclopropane rearrangement to an isomer which apparently reversibly undergoes a retro 4 + 2 cycloaddition at 150°C. This set of isomers gives 3,4-dimethylene-1,5-hexadiene and bicyclo[4.2.0]octa-1,5-diene at ISO C (Scheme 9.73). 

Kim, Y. Keskinen, K. L Aittamaa, J. Vapor-liquid equilibrium for binary systems 2-propanol + 2-ethoxy-2-methylpiopane and ethyl ethanoate + 2-ethoxy-2-methylpropane at 333 K and 2-propanone + 2-ethoxy-2-methylpropane at 323 K J. Chem. Eng. Dam 2004,49, 1273-1278... 

C2 7H2 9NO5S, N-Tosyl-2,12-ethano-2-ethyl-8-methoxy-1,4-methylene-1,2,3,4,5,6,12,13-octahydrophenanthridin-3-one, 40B, 292 C27H33N, 1,2,3,4,5,6,7,8-Octahydro-l,4 5,8-diisopropano-4,5-dimeth-yl-9-phenyl-acridine, 45B, 315... 

Methylbutanoic acid Pentanoic acid Propyl ethanoate 2-Tetrahydrofuiylmethanol... 

Gmehling, J. Meents, B. Excess enthalpies of propyl ethanoate + 2-butanone or + 1-butanol and of methyl dodecanoate + toluene or 1- methanol mixtures Int. DATA Ser., Set. Data Mixtures, Ser. A1992,20,185-188... 

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