Adipic diethyl ester

According to the method of Brown and Walker,4 adipic diethyl ester is formed from ethyl potassium succinate ... [Pg.110]

Moreover, succinic diethyl ester was former 1 from the malotnc acid, and adipic diethyl ester from the suermie acid. [Pg.112]

Acetic acid, butyl ester Acetic acid, pentyl ester Acetic acid, decyl ester Acetic acid, benzyl ester Acetic acid, benzyl ester Acetic acid, 1-cyclohexenyl ester Acetic acid, 3-cyclohexenyl ester Butyric acid, benzyl ester Phenylacetic acid, propyl ester Oleic acid, methyl ester Linoleic acid, methyl ester Linolenic acid, methyl ester Adipic acid, methyl ester Adipic acid, ethyl ester Adipic acid, diethyl ester Adipic acid, dipropyl ester Adipic acid, (methylethyl)ester Adipic acid,... [Pg.370]

At a high temperature (>200°C), the reaction with alicyclic ketones is a very attractive application of DMC as a methoxycarbonylating agent. In particular, cyclopentanone and cyclohexanone, whose reactions with DMC (or (3 = diethylaminoethyl chokide hydrochloride (DEC)] and a base (K2CO3) yield adipic and pimelic dimethyl (or diethyl) esters, respectively (Scheme 4.18). ... [Pg.95]

The submitter prepared the material from dimethyl adipate following the procedure published by Pickney for the diethyl ester. The checkers obtained their material by fractional distillation of mixed carbomethoxy- and carbethoxycyclo-pentanone available from Arapahoe Chemical Co., Boulder, Colorado. [Pg.69]

Keywords diethyl adipate, diethyl pimelate, Dieckmann condensation, cyclic fi-keto ester... [Pg.50]

Adipic Acid.—The ethyl potassium salt was converted into the sebaeic diethyl ester by Brown and Walker1 ... [Pg.114]

It may also help to distil out the water that is formed in the reaction diethyl adipate (the diethyl ester of hexanedioic add) can be made in toluene solution using a sixfold excess of ethanol, concentrated H2SO4 as catalyst, distilling out the water using a Dean Stark apparatus. You can tell from the yield that the equilibrium is very favourable. [Pg.311]

Intramolecular acylations often go very well indeed when a five- or a six-membered ring is being formed, A classic case is the cyclization of the diethyl ester of adipic acid (diethyl hexanedioate), a component in nylon manufacture. [Pg.727]

Diethyl ester, Cj0H, O4, ethyl adipate. Liquid, bp 240-245". d20 1.009. I iisol in water sol in alcohol and many... [Pg.27]

Adipic acid, diethyl ester. See Diethyl adipate Adipic acid, dihexyl ester. See Dihexyl adipate Adipic acid dihydrazide CAS 1071-93-8 EINECS/ELINCS 213-999-5 Synonyms Adipic dihydrazide Adipodihydrazide Adipoyl hydrazide Hexanedioic acid, dihydrazide Ciassification Nonaromatic amide hydrazide Definition Reaction prod, of hydrazine and adipic acid... [Pg.121]

CAS 141-28-6 EINECS/ELINCS 205-477-0 Synonyms Adipic acid, diethyl ester Diethyl adipatate Diethyl hexanedioate 1,6-Diethyl hexanedioate Ethyl adipate Ethyl 5-carboethoxyvalerate Hexanedioic acid, diethyl ester Empirical C10H18O4 Formula (-CH2CH2COOC2H5)2 Properties Colorless liq. sol. in alcohol, many other org. soivs. insol. in water m.w. 202.25 sp.gr. 1.009 m.p. -18 C b.p. 240-251 C flash pt. (CC) > 100 C ref. index 1.427 (20 C)... [Pg.1295]

Hexanedioic acid, diethyl ester. See Diethyl adipate... [Pg.2017]

Just as there is an intramolecular version of the aldol condensation (see Section 22.2), there is an intramolecular version of the Claisen condensation. A simple illustration is treatment of an a,(0-diester such as diethyl 1,6-hexanedioate (77, the diethyl ester of adipic acid called diethyl adipate see Chapter 20, Section 20.9) with sodium ethoxide in refluxing ethanol. When this experiment is done, triphenylmethide (19 introduced in Section 22.1) is used as the base, and reaction in the solvent benzene gives the isolated flnal product (86) in 70% yield. Note that benzene is rarely used now-a-days because it is a suspected carcinogen and its use is being phased out. This reaction sequence uses the same mechanism as the Claisen condensation. [Pg.1150]

It is not unreasonable to expect that a Claisen-type condensation might also occur intramolecularly. That is, both the anion a- to a carbonyl group and another carbonyl group might be present in the same molecule. As shown in item 6 of Table 9.9 and Scheme 9.146, when the diethyl ester of 1,5-hexanedicarboxylate (diethyl adipate CH3CH202C(CH2)4C02CH2CH3), is treated with ethoxide (-OCH2CH3)... [Pg.910]

Scheme 9.146. A representation of an intramolecular Claisen-type condensation (an acyloin condensation) in which the diethyl ester of 1,6-hexanedicarboxylic acid (diethyl adipate, CH3CH202C(CH2)4C02CH2CH3)) undergoes cychzation to yield ethyl 2-oxocyclopentanecarboxylate in the presence of ethoxide anion ( OCH2CH3) in ethanol (ethyl alcohol, CH3CH2OH) solvent.

Ethyl maleate of almost equal purity may be obtained by refluxing a mixture of 20 g. of pure maleic a.oid, 37 g. (47 ml.) of absolute ethyl alcohol, 05 ml. of sodium-dried benzene and 4 ml. of concentrated sulphuric acid for 12 hours. The ester is isolated as described for Diethyl Adipate (Section 111,100). The yield of diethyl maleate, b.p. 219-220°, is 26 g. [Pg.389]

The Dieckmann condensation of diethyl adipate yields a keto-ester product. [Pg.172]

Divinyl esters reported first by us are efficient monomers for polyester production under mild reaction conditions. In the lipase PF-catalyzed polymerization of divinyl adipate and 1,4-butanediol in diisopropyl ether at 45°C, a polyester with molecular weight of 6.7 x 10 was formed, whereas adipic acid and diethyl adipate did not afford the polymeric materials under similar reaction conditions (Scheme 3). [Pg.214]

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