Tetradecanoic acid

Reflux a mixture of 7 3 g. of methyl myristate with a solution of 4 8 g. of sodium hydroxide in 200 ml. of 90 per cent, methanol for 2 hours, distil off the methanol on a water bath, dissolve the residue in 400 ml. of hot water, add 15 ml. of concentrated hydrochloric acid to the solution at 50° in order to precipitate the organic acid, and cool. Collect the acid by suction filtration, wash it with a little water and dry in a vacuum desiccator. The yield of myristic acid (tetradecanoic acid tetradecoic acid), m.p. 57-58°, is 5 9 g. 

Tnmynstm is obtained from coconut oil and has the molecular formula C45H86O6 On being heated with aqueous sodium hydroxide followed by acidification trimyristin was converted to glycerol and tetradecanoic acid as the only products What is the structure of trimyristin ... 

Dodecanoic acid Tetradecanoic acid Hexadecanoic acid Octadecanoic acid Icosanoic acid... 

Myristic acid (tetradecanoic acid) [544-63-8] M 228.4, m 58 , pK 6.3 (50% EtOH), pK si -4.9 (H2O). Purified via the methyl ester (h 153-154 /10mm, n 1.4350), as for capric acid. [Trachtman and Miller y/4m Chem Soc 84 4828 7962.] Also purified by zone melting. Crystd from pet ether and dried in a vacuum desiccator containing shredded wax. 

C7H,Bi03 107872-93-5) see Cilastatin (3/t)-3-[(2-bromo-l-oxooctyl)oxy]tetradecanoic acid metbyl ester... 

Isoprenoid fatty acids (4,8,12 trimethyl tetradecanoic acid and phytanic acid), acids with 16, 18 and 20 carbon atoms Heated marine lipids [42,43]... 

Dodecanoic acid Tetradecanoic acid Hexadecanoic acid Octadecanoic acid 9-Octadeceanoic acid 9,12-Octadecadienoic acid 9,12,15-Octadecatrienoic acid... 

In total, 185 substances were found in the wing-sac liquid of male S. bilineata from a Costa Rican population. For a more detailed analysis the relative peak area of thirteen focus compounds was compared (Table 14.1). Of these nine were male-specific substances (indole, indol-3-carboxaldehyde, indole-3-carboxylic acid, 2-aminoacetophenon, anthranilic acid, SHJOH-dipyrrolofl -aT -dJpyrazine-5,10-dione (pyrocoll), indolo[2,l-b]quinazoline-6,12-dione (tryptanthrin), 2,6,10-trimethyl-3-oxo-6,10-dodecadienolide, and a compound C15H24O2 of unknown structure), three were fatty acids (tetradecanoic acid, hexadecanoic acid, and octadecanoic acid), and one a steroid (cholesterol). On average, the cumulative peak area of these substances made up 62.5 20.7% of the whole chromatogram area. 

Fig. 14.1 The percentage peak area of tetradecanoic acid (a) and octadecanoic acid (b) in relation to the other twelve focus substances in the wing-sac liquid of seven male S. bilineata. Samples of the same individual from the non-mating season (July-August) and the mating season (December) are connected by a line. Individual symbols indicate samples from individual males... 

Phenylpropanoic acid 3-Hydroxyacetophenone Oxindole Hexadecane Tetradecanoic acid Octadecane Hexadecanoic acid (Z)-Octadec-9-enoic acid ( )-Octadec-9-enoic acid Octadecanoic acid... 

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