Isobutyl Ester

Chemical Designations - Synonyms Acrylic Acid, Isobutyl Ester Chemical Formula CH =CHCOO-CHjCH(CH3)j. 

Chemical Designations - Synonyms Acetic acid, isobutyl ester 2-Methyl-1-propyl acetate beta-Methylpropyl ethanoate Chemical Formula CH3COOCHjCH(CH3)2. 

Isobutyl chloroformate Formic acid, chloro-, isobutyl ester (8) Carbonochloridic acid, isobutyl ester (9) (543-27-1) S-tcrf-Butyl-L-cysteine ferf-butyl ester L-Cysteine, S-(l,l-dim-ethylethyl), 1,1-dimethylethyl ester (9) ( —) acetate (38024-19-0) hydrochloride (2481-11-0)... 

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. 

Acetic acid, 2-ethoxyethyl ester, see 2-Ethoxyethyl acetate Acetic acid, ethylene ester, see Vinyl acetate Acetic acid, ethyl ester, see Ethyl acetate Acetic acid, isobutyl ester, see Isobutyl acetate Acetic acid, isopentyl ester, see Isoamyl acetate Acetic acid, isopropyl ester, see Isopropyl acetate Acetic acid, 2-methoxyethyl ester, see Methyl cellosolve acetate... 

Synonyms Acetic acid, isobutyl ester 2-methylpropyl acetate... 

Uses. Lacquers, paint removers, cleaners, and hydraulic fluids manufacture of isobutyl esters... 

Acetic Acid, Cupric Salt Acetic Acid, Dimethylamide Acetic Acid, Ethyl Ester Acetic Acid, Isobutyl Ester Acetic Acid, Isopropyl Ester Acetic Acid, Methyl Ester Acetic Acid, Nickel (II) Salt Acetic Acid, Propyl Ester Acetic Acid, Sec-Butyl Ester Acetic Acid, Zinc Salt Acetic Aldehyde Acetic Anhydride Acetic Ester Acetic Ether... 

Acrylic Acid, 2-Ethylhexyl Ester Acrylic Acid, Isobutyl Ester Acrylic Acid, Methyl Ester Acrylic Aldehyde Acrylic Amide, 50 %... 

ISOBUTYL ACETATE Acetic Acid, Isobutyl ester Flammable Liquid, II 1 3 0... 

Some information is available on other acrylates. N,N-disubstituted acrylamides form isotactic polymers with lithium alkyls in hydrocarbons (12). t-Butylacrylate forms crystallizable polymers with lithium-based catalysts in non-polar solvents (65) whereas the methyl, n-butyl, sec-butyl and isobutyl esters do not. Isopropylacrylate also gives isotactic polymer with lithium compounds in non-polar solvents (34). The inability of n-alkylacrylates to form crystallizable polymers may result from a requirement for a branched alkyl group for stereospecific polymerization. On the other hand lack of crystallizability cannot be taken as definite evidence of a lack of stereoregulating influence, as sometimes quite highly regular polymer fails to crystallize. The butyllithium-initiated polymers of methylmethacrylate for instance cannot be crystallized. The presence of a small amount of more random structure appears to inhibit the crystallization process1. 

Acrylonitrile Methacrylic acid Methacrylic acid/alcohols Methacrylic acid isobutyl ester Methacrylic acid n-butyl ester Methacrylic acid p-carboxyphenol ester... 

Bromo methylbenzoic acid isobutyl ester fenpyroximate p Bromo nitro benzene chlorbromuron 4 Bromophenol silafluofen a Bromo a phenyl acetone diphacinone Bromo pinacolone diclobutrazol, triadimefon Bromo propane penconazole... 

N-HFB-butyl (isobutyl) esters are said to be the least volatile and their treatment at room temperature does not lead to losses. MacKenzie and Tenaschuk [234] separated these derivatives in a simple column packed with 3% SE-30 and applied the method to the proteins in plant seeds. Poole and Verzele [235] applied SE-30, OV-17 and OV-210 in glass capillary columns and demonstrated their use in various applications. Felker [236] drew attention to an unfavourable influence of peroxides with which reagents and solvents can often be contaminated, which decreases the yield of the acylation reaction, mainly of Met and Trp. He used 3% of SP 2100 for the separation. 

An example of diastereoface differentiation is provided in an asymmetric synthesis of the dipeptide Ala-Ala [70]. The element of chirality is that of one of the alanine groups, and the faces are those of a Schiff base, > C=N—. The material undergoing a catalytic reduction is the isobutyl ester of the benzylamine Schiff base of N-pyruvoyl-(5)-alanine, 54. The ratio of R S (55) to S S dipeptide was 82 18 for an optical purity of 64%. 

The phenyl acetic acid esters are highly valuable intermediates for a lot of applications. Among them, they are applied for the synthesis of fragrances e.g. ethyl ester (honey odour), isobutyl ester (sweet roses odour). The present industrial process for phenyl acetic esters starts from benzylchloride and uses the reactions with KCN to form benzylcyanide 7 (Eq. 15.2.4) and followed by hydrolytic cleavage. 

There is evidence471 that, in solution, the dimer is in equilibrium with monomer (equation 7) and there may be such equilibria between monomer and dimer forms with 0s206L4 (L — 3-picoline, 3-chloropyridine),470 2,2 -bipyridyl,471 imidazole,544 1,10-phenanthroline496 and N,N,N, N tetramethylethylenediamine (TMEN)496). Species of the Os2OsL4 type have also been found with imidazoles and a-AT-benzoyl-L-histidine isobutyl ester.544... 

When the 73 27 mixture of crude carboxylic acid 110 and the monocyclic diacid 111 was treated with isobutyl iodide/Cs2C03 in hot DMF, only Wisobutyl isobutyl ester 112 was obtained (Equation 17) <2005JOC688>. Apparently the C(7)-C02H of 111 is esterified, along with the C(9)-C02H, and the C(7)-estet is recycled through the intramolecular cyclization. 

Deconjugation oj a, -unsaturated esters (11, 297). This base is more effective than LDA/HMPT for isomerization of a,3-unsaturatcd esters to (Z)-(3,y-unsaturated esters. The (Z)-selectivity is increased somewhat with increasing size of the ester group. Isobutyl esters are isornerized to (Z)-3-alkenoates almost exclusively (Z/E = 97 3). 

SYNS ACETATE d ISOBUTYLE (FRENCH) ACETIC ACID, ISOBUTYL ESTER ACETIC ACID-2-METHYL-PROPYL ESTER FEYLL No. 2175 ... 

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