Dodecanoic acid 2-methyl

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. 

Fig. 14.8. Chromatogram and mass spectrum showing typical GC/MS data. The mass spectrum shown was obtained from the peak indicated with the arrow. Peak identification ldecane, 2 = 1-octanol, 3 = 2,6-dimethylphenol, 4 = 2-ethylhexanoic acid, 5 = 2,3-dimethylaniline, 6 = dodecane, 7 = decanoic acid, methyl ester, 8 = dicyclohexyl amine, 9 = undecanoic acid, methyl ester, 10-dodecanoic acid, methyl ester.

Diesel fuel [mg] Lubricating oil [mg] Texapon NSO (surfactant) Dodecanoic acid methyl ester River fulvic acid... 

Beilstein Handbook Reference) AI3-00669 BRN 1767780 Dodecanoic acid, methyl ester EINECS 203-911-3 FEMA number 2715 HSDB 5550 Laurie acid, methyl ester Metholene 2296 Methyl dodecanoate Methyl dodecylate Methyl laurate Methyl laurinate Methyl n-dodecanoate NSC 5027 Stepan C40 Uniphat A40. Used as an intermediate in the manufacture of detergents, emulsifiers, wetting agent, stabilizers, lubricants, plasticizers, texfiles, flavoring. Liquid mp = 5.2° bp n 267 d =... 

Dodecanedioic acid 1,12-Dodecanedioic acid. See Cl 2 dibasic acid Dodecanoic acid, diester with 1,2,3-propanetriol. See Glyceryl dilaurate Dodecanoic acid 1,2-ethanediyl ester. See Glycol dilaurate Dodecanoic acid 2-(2-hydroxyethoxy) ethyl ester. See PEG-2 laurate Dodecanoic acid, 2-hydroxypropyl ester. See Propylene glycol laurate Dodecanoic acid methyl ester. See Methyl laurate Dodecanoic acid, mixed triesters with octanoic acid, decanoic acid, and 1,2,3-propanetriol. See Captylic/capric/lauric triglyceride Dodecanoic acid, monoester with 1,2-propanediol. See Propylene glycol laurate... 

Synonyms Dodecanoic acid methyl ester Laurie acid methyl ester Methyl dodecanoate Methyl n-dodecanoate Methyl dodec ate Methyl laurinate... 

Dodecanoic acid methyl ester. See Methyl laurate... 

Buhler, Schmid, and coworkers [36] described the development of a recombinant whole-cell biocatalyst for the direct terminal alkylamino-functionalization of fatty acid methyl esters (e.g., dodecanoic acid methyl ester). The model substrate was dodecanoic acid methyl ester, which was oxidized by an alkane monooxygenase (AlkBGT) from Pseudomonas putida GPol to the corresponding... 

Scheme 3.15 Terminal amino functionalization of dodecanoic acid methyl ester with E. coli BL21 (DE3) (pBTlO, pTA) containing alkane monooxygenase AlkBGT and ca-transaminase CV2025.

C13H26O2 111-82-0 Dodecanoic acid methyl ester see Methyl dodecanoate... 

The colvooi efficiency is determined by the separation number tained for the methyl esters of decanoic, undecanoic, and dodecanoic acids (E o> 12> A relative difference in the molecular sizes of the homologous pairs decreases with increasing molecular size, the first pair of methyl esters (E, /E t) provides a separation number value that is about 8% higher than that of the... 

Crooks et al. reported the transfer of amine-functionalized poly(amidoamine) dendrimers into toluene containing dodecanoic acid [198], The method is based on the formation of ion pairs between the fatty acids and the terminal amine-groups. These dendrimer-fatty acid complexes resemble unimolecular inverted micelles and could be used as phase transfer vehicles for the transport of Methyl Orange, an anionic dye molecule, into an organic medium. 

From the archival enthalpies of formation of the other species, the enthalpy of formation of cyclohexyl methyl amine is —145.4 kJmoH. From equation 11, the enthalpy of formation of the corresponding salt is —501.2 kJmoH. Attempts to estimate an enthalpy of formation for A-methyldodecanamide reveals a paucity of data to work with, primarily for unsubstituted and A-methylamides . There is much enthalpy of formation data for w-alkyl carboxylic acids, including dodecanoic acid. The methylene increment... 

Laurie acid (1-dodecanoic acid) [143-07-7] M 200.3, m 44.1 , b 141-142 /0.6-0.7nini, 225 /100mm. Vacuum distd. Crystd from absolute EtOH, or from acetone at -25°. Alternatively, purified via its methyl ester (b 140.0°/15mm), as described for capric acid. Also purified by zone melting. 

Amination of methyl dodecanoate or dodecanoic acid in the presence of supported Cu-Cr catalysts. 

Amination and N methylation of methyl dodecanoate or dodecanoic acid, hydrogenation and N methylation of dodecylnitrile, N methylation of dodecylamine in presence of copper-chromium catalysts. 

When this method, in a slightly modified form, was applied to Salmonella free lipid A, mainly two compounds were liberated which were detected by gas-liquid chromatography and characterized by mass spectrometry. The spectrum of the first compound was identical with that of authentic 3-hydroxytetradecanoic acid, 3-0-acylated by dodecanoic acid (3-0-dodecanoyl-tetradecanoic acid methyl ester, 3-0(12 0)-14 0) (27). The mass spectrum of the second peak showed, inter alia, characteristic fragments at 496 (M ), 465 (M-31), 239, 240 and 241, thus corresponding to 3-0-hexadecanoyl-tetradecanoic acid methyl ester (3—0(16 0)—14 0). Therefore, the two components present in Salmonella lipid A in amide linkage and released by the above described procedure... 

The one-step synthesis of IV,IV-dimethyldodecylamine from dodecanoic acid or its methyl ester, ammonia, methanol, and hydrogen has been studied by Barrault et al. over supported copper-chromium catalysts in a fixed-bed reactor at 300°C and 5 MPa H2.44 The selectivity to IV-methyl- and iV,iV-dimethyldodecylamine was greatly en-... 

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