O-Dicarboxylic acids

The most common reaction of this type is the cyclization of various derivatives of hydrazine and substituted hydrazines with pyridine o-dicarboxylic acids and related compounds. Reactions in which the acid derivative reacts directly with the hydrazine are dealt with as [4 + 2] reactions in Section 2.15.10.6.1. 

Craft DL, KM Madduri, M Eshoo, CR Wilson (2003) Identification and characterization of the CYP52 family of Candida tropicalis ATCC 20336, important for the conversion of fatty acids and alkanes to a,(o-dicarboxylic acids. Appl Environ Microbiol 69 5983-5991. 

In common with many other ort o-dicarboxylic acids, indolizine-l,2-dicarboxylic acid, when treated with trifluoro-acetic anhydride, gives the cyclic anhydride <2000H(53)2123> (Equation 31). 

Benzene-o-dicarboxylic acid, di-rrbutyl ester, see Di-n-butyl phthalate... 

The lipids used in the syntheses of neoglycolipids are often commercially available most of the long-chain carboxylic acids, n-alcanols, n-alcanethiols or -alkylamines are readily available as well as a,o)-dicarboxylic acids, diols or diamines useful for the syntheses of bola-amphiphiles. 

Electrolysis, under similar conditions, of a mixture of two carboxylic acids RCOOH and R COOH leads, in addition to normal coupling products R—R and R —R, to cross coupling R—R. If a mixture of a saturated carboxylic acid and a half-ester of an adicarboxylic acid is electrolysed, there are three main products, viz., a hydrocarbon (I), a mono-ester (II), and a di-ester (HI) and these are readily separable by distillation. Some unsaturated ester (IV) is often present in small quantity. 

Long-chain a,o)-dicarboxylic acids have been condensed with diamino-isohexides, forming linear polyamides suitable for producing fibers having a silklike texture and higher moisture-absorption properties than nylon-like polymers.206... 

SYNS BENZENE-o-DICARBOXYLIC ACID DI-n-BUTYL ESTER o-BENZENEDICARBOXYLIC ACID, DIBUTYL ESTER n-BUTYL PHTHALATE (DOT) CELLUFLEXDPB DBP DIBUTYL-1,2-BENZENEDICARBOXYLATE DI-n-BUTYL PHTHALATE ELAOL HEXAPLAS M/B PALATINOL C POLYCIZER DBP PX 104 RCRA WASTE NUMBER U069 STAFLEX DBP WITCIZER 300... 

BENZENE-o-DICARBOXYLIC ACID DI-n-BUTYL ESTER see DEH200... 

Synonyms o-Dicarboxylic acid esters Phthalic acid ester (PAE)... 

BENZENE-o-DICARBOXYLIC ACID Dl-A-BUTYL ESTER (84-74-2) Combustible liquid (flash point 314°F/157°C). Violent reaction with strong oxidizers. Incompatible with strong acids, nitrates, strong alkalis. 

Beilstein Handbook Reference) AI-3-00283 Araldite 502 Benzene-o-dicarboxylic acid di-n-butyl ester Benzenedicarboxylic acid, dibutyl ester BRN 1914064 Butyl phthalate Caswell No. 292 CCRIS 2676 Cellutlex DPB DBP DBP (ester) Di-n-butyl phthalate Di-n-butylester kysellny ftalove Dibutyl... 

SYNONYMS Benzene-o-dicarboxylic acid, dibutyl ester, DBP, phthalate elaol, 1,2-benzene-dicarboxylate. 

SYNONYMS Benzene-o-dicarboxylic acid di-n-butyl ester, 0-Benzenedicarboxylic acid. Dibutyl ester, n-Butyl phthalate (dot), Celluflex DPB, Dibutyl-1,2-benzenedicarboxylate, Di-n-butyl phthalate, Elaol, Hexaplas M/B, Palatinol C, Polycizer DBP, PX 104, Staflex DBP, Wit-cizer 300... 

SYNONYMS benzene-o-dicarboxylic acid di-n-butylester, DBP, dibutyl-1,2-benzenedicarboxylate, di-n-butylphthalate. 

Generally speaking, numerous synthons can be extracted from biomass. One known example is that of ethylene, produced from the dehydration of ethanol which is a very common product of fermentation. Another example is 1,3-propanediol, which is a monomer used as a building block for the production of polymers such as polyesters and polyurethanes. Several industrial processes have studied its production by fermentation with the aim of producing it directly from inexpensive plant raw materials (starch or sucrose). To synthesize polyamides and polyesters, we also aim to produce a,(o-dicarboxylic acids by the biological conversion of esters from vegetable oils. 

Cutin. Structural component of the outer lipophilic protective layer (cuticle) of the aerial parts of plants, especially leaves. Suberin serves similar functions in roots and bark. C. is a natural polyester, formed enzymatically from hydroxyfatty acids with 16 and 18 C atoms. o+Hydroxy- and dihydroxyfatty acids, e.g., 10,16-dihydroxypalmitic acid, as well as epoxy- and oxofatty acids, and a,o>-dicarboxylic acids are the main components of cutin. Cutinases (C.-cleaving enzymes) occur especially in pollen and in plant-pathogenic fungi, e.g., Fusarium solani (while rot in potatoes). 

Alicyclic ketones produce esters of a, (o-dicarboxylic acids (entries 5, 6). An example is cyclohexanone, which gives dimethyl pimelate. These compounds, used for the production of polyesters and polyamides, have traditionally been synthetized in industry by oxidation of alicyclic ketones (74). 

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