Decanoic acid

By increasing the molar proportion of the monocarboxylic acid, the yield of (II) is improved. Thus electrolysis of a mixture of decanoic acid (n-decoic acid capric acid) (V) (2 mols) and methyl hydrogen adipate (VI) (1 mol) in anhydrous methanol in the presence of a little sodium methoxide gives, after hydrolysis of the esters formed, n-octadecane (VII), tetradecanoic or myristic acid (VIH) and sebacic acid (IX) ... [Pg.938]

Capric acid (decanoic acid) [334-48-5] M 172.3, m 31.5 , b 148 /llmm, d 0.886, n s 1.424, pKesi -4.9. Purified by conversion to its methyl ester, b 114.0 /15mm (using excess MeOH, in the presence of H2SO4). After removal of the H2SO4 and excess MeOH, the ester was distd under vacuum through a 3ft... [Pg.154]

Phytanic acid, the product of chlorophyll that causes problems for individuals with Refsum s disease, is 3,7,11,15-tetramethyl hexa-decanoic acid. Suggest a route for its oxidation that is consistent with what you have learned in this chapter. Hint The methyl group at C-3 effectively blocks hydroxylation and normal /3-oxidation. You may wish to initiate breakdown in some other way.)... [Pg.800]

Figure 15.7 Cliromatographic separation of cliiral hydroxy acids from Pseudomonas aeruginosa without (a) and with (h) co-injection of racemic standards. Peak identification is as follows 1, 3-hydroxy decanoic acid, methyl ester 2, 3-hydroxy dodecanoic acid, methyl ester 3, 2-hydroxy dodecanoic acid, methyl ester. Adapted from Journal of High Resolution Chromatography, 18, A. Kaunzinger et al., Stereo differentiation and simultaneous analysis of 2- and 3-hydroxyalkanoic acids from hiomemhranes hy multidimensional gas cliromatog-raphy , pp. 191 -193, 1995, with permission from Wiley-VCH. (continuedp. 419)...

Figure 15.11 (a) Total ion clnomatogram of a Grob test mixture obtained on an Rtx-1701 column, and (b) re-injection of the entire clnomatogram on to an Rtx-5 column. Peak identification is as follows a, 2,3-butanediol b, decane c, undecane d, 1-octanol e, nonanal f, 2,6-dimethylphenol g, 2-ethylhexanoic acid h, 2,6-dimethylaniline i, decanoic acid methyl ester ], dicyclohexylamine k, undecanoic acid, methyl ester 1, dodecanoic acid, methyl ester. Adapted from Journal of High Resolution Chromatography, 21, M. J. Tomlinson and C. L. Wilkins, Evaluation of a semi-automated multidimensional gas chromatography-infrared-mass specti ometry system for initant analysis , pp. 347-354, 1998, with permission from Wiley-VCH. [Pg.424]

Examination of the mass spectrum of n-decanoic acid (Figure 4.1) shows prominent ions at m/z 60 and 73. A m/z 60 ion (Section III) (see also Appendix 10) suggests the mass spectrum may represent an aliphatic carboxylic acid. This ion in combination with m/z 73... [Pg.224]

Migchielsen MHJ (2004a) 8-Oxa-3,5-dithia-4-stannatetra-decanoic acid, 10-ethyl-4-[[2-(2-ethylhexyl)oxy]-2-oxoethyl]thio]-... [Pg.48]

Migchielsen MHJ (2004b) 8-Oxa-3,5-dithia-4-stannatetra-decanoic acid, 10-ethyl-4-[[2-(2-ethylhexyl)oxy]-2-oxoethyl]thio]-4-octyl-7-oxo-, 2-ethylhexyl ester [Mono-octyltin tris(2-ethyl-hexylmercaptoacetate), CAS No. 27107-89-7] 96-hour acute toxicity in zebra-fish with MOT(EHMA) (semi-static). TNO, Delft, for NOTOX, s-Hertogenbosch, 3 September (NOTOX Project 374985 TNO Study No. 5311/01). [Pg.48]

Mortensen PB. C6-C10-dicarboxyUc aciduria in starved, fat-fed and diabetic rats receiving decanoic acid or medium-cbain triacylglycerol. An in vivo measure of the rate of beta-oxidation of fatty acids. Biochim BiophysActa, 1981, 664(2), 349-355. [Pg.247]

Lipase CA also polymerized hydrophobic oxyacids efficiently. The DP value was beyond 100 in the polymerization of 16-hydroxyhexadecanoic acid, 12-hydroxy dodecanoic acid, or 10-hydroxy decanoic acid under vacuum at high temperature (90°C) for 24 h, whereas the polyester with lower molecular weight was formed from 6-hydroxyhexanoic acid under similar reaction conditions. This difference may be due to the lipase-substrate interachon. [Pg.217]

Wide angle X-ray diffraction, WAXD, studies on the PHAs from octanoic acid (PHA-OCT), nonanoic acid (PHA-NON), and decanoic acid (PHA-DEC) showed that these polymers had the same features as synthetic comb-like polymers [54]. PHA-OCT is the most crystalline (AHm = 8.3 cal/g) and PHA-HEX (the PHA from hexanoic acid) is amorphous, while PHA-HEP (the PHA from hep-tanoic acid) has a very low degree of crystallinity (AHm= 1.3 cal/g). The degrees of crystallinity of PHA-OCT and PHA-NON were determined to be 20 and 30%,... [Pg.63]

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