Propionic acids 3- propionate

Propionates. Propionic acid [79-09-4], C2H 02, and its calcium and sodium salts ate effective mold inhibitors. They ate particularly useful in yeast-leavened baked products because they do not affect the activity of yeast. In addition to being widely used in baked goods, they ate used as mold inhibitors in cheese foods and spreads (77). 

SYNS FEMA No. 2301 3-PHENYL-2-PROPENYL PROPIONATE 3-PHENYL-2-PROPENM-YL PROPIONATE PROPIONIC ACID, CINNAMYL ESTER... 

Anhydrous sodium propionate calcium propionate potassium propionate propionic acid zinc propionate. 

Calcium Propionate. Propionic acid calcium sail ... 

E282 Calcium propionate Propionic acid salt Preservative... 

Propionic acid, ethyl ester. See Ethyl propionate Propionic acid, 2-hydroxy-. See Lactic acid Propionic acid, 2-methyl-. See Isobutyric acid... 

See 2,2,4-Trimethyl-1,3-pentanediol isobutyrate Propionic acid, propyl ester. See Propyl propionate Propionic acid, 3,3 -thiobis-, dioctadecyl ester. See Distearyl thiodipro-pionate... 

Synonyms 3-Phenylallyl propionate y-Phenylallyl propionate 3-Phenyl-2-propenyl propanoate 3-Phenyl-2-propen-1 -yl propionate Propionic acid, cinnamyl ester... 

Synonyms N-Benzoyl-N-(3-chloro-4-flurophenyl) DL-alanine methyl ester Flufenprop-methyl Methyl N-benzoyl-N-(3-chloro-4-fluorophenyl) alaninate Methyl N-benzoyl-N-(3-chloro-4-fluorophenyl)-DL-alaninate Methyl 2-(benzoyl (3-chloro-4-fluorophenyl) amino) propionate Propionic acid, 2-(N-(3-chloro-4-fluorophenyl) benzamido)-, methyl ester Empiricai C17H1SCIFNO3 Properties M.w. 307.71 Toxicoiogy LD50 (oral, rat) 633 mg/kg, (oral, mouse) 920 mg/kg, (skin, rabbit) > 4 g/kg mod. toxic by ing. 

Lauramidopropyl dimethylamine oxide. See Lauramidopropylamine oxide Lauramidopropyl dimethylamine propionate CAS 67801-62-1 EINECS/ELINCS 267-182-3 Synonyms Dimethylaminopropyl lauramide propionate Propionic acid, compd. with N-[3-(dimethylamino) propyl] dodecanamide (1 1) Definition Propionic acid salt of lauramidopropyidimethylamine Empirical C17H36N2O C3H6O2 Formula ... 

Acetic acid Acetone L-Camphor Caprolactam 2,2-Dimethylpropanol Ethylcellulose Ethylene 2-(5-Ethyl-2-pyridyl)ethyl acrylate Heptyl alcohol N-Isopropyl-N -phenyl-p-phenylenediamine Levulinic acid Nonanoic acid Rosin plastic mfg., cellulose propionate Propionic acid plastic pipe Polypropylene plastic resins Cobalt phosphate (ous) plastic wood s-Amyl acetate... 

Ethyl propionate (propionic acid ethyl ester) n. Colorless liquid, fruity odor. Medium boiling solvent for nitrocellulose. Properties bp, 98°C Sp gr, 0.912/0°C flip, 12°C (43.6°F) vp, 43mmHg/30°C. 

Fig. 7. Log molar concentration of total propionate (propionate + propionic acid) versus total acetate (acetate + acetic acid) (N = 82) for samples from 90 to 110°C. Solid line is a least squares fit to the data. Dashed lines are contours of the log fugacity of oxygen from Shock (1989) and represent the calculated equilibrium between propionic and acetic acids at 100 °C and 300 bar. For data sources, see Fig. 6...

Macedo, E. A. Rasmussen, R Vapor-liquid equilibrium for the binary systems ethyl acetate - acetic acid and ethyl propionate - propionic acid. J. Chem. Eng. Data 1982, 27, 463-465. 

Synonyms Dimethylaminopropyl lauramide propionate Propionic acid, compd. 

See Lauramidopropyl dimetivlamine propionate Propionic acid, 2-hydroxy-. See Lactic acid... 

Propionic acid, 2-methyi-, monoester with 2,2,4-trimethyl-1,3-pentanediol. See 2,2/4-Trimethyl-1,3-pentanedk>i isobutyrate Propionic acid octyl ester. See Octyl propionate Propionic acid sodium saH. See Sodium propionate Propoxylated neopentyl glycol diacrylate. See Neopentyl glycol propoxylate... 

By contrast, in the system propionic acid d) - methyl isobutyl ketone (2), (fi and are very much different when y 1, Propionic acid has a strong tendency to dimerize with itself and only a weak tendency to dimerize with ketone also,the ketone has only a weak tendency to dimerize with itself. At acid-rich compositions, therefore, many acid molecules have dimerized but most ketone molecules are monomers. Acid-acid dimerization lowers the fugacity of acid and thus is well below unity. Because of acid-acid dimerization, the true mole fraction of ketone is signi-... 

Vapor-Phase Mole Fraction Propionic Acid... 

Figure 3-7. Fugacity coefficients for a saturated mixture of propionic acid (1) and raethylisobutylketone (2). Calculations based on chemical method show large variations from ideal behavior.

PROPIONIC ACID -9.0717E4O2 2 6352E4>04 -8 2603E-02 U7777E4 02... 

The ketones are readily prepared, for example, acetophenone from benzene, acetyl chloride (or acetic anhydride) and aluminium chloride by the Friedel and Crafts reaction ethyl benzyl ketones by passing a mixture of phenylacetic acid and propionic acid over thoria at 450° and n-propyl- p-phenylethylketone by circulating a mixture of hydrocinnamic acid and n-butyric acid over thoria (for further details, see under Aromatic Ketones, Sections IV,136, IV,137 and IV,141). 

The phenyl propionate may be prepared by slowly adding 196 g. (120 ml.) of redistilled thionyl chloride to a mixture of I50g. of pure phenol and 132 g. (133 ml.) of propionic acid (compare Fig. 111,31, 1), warming to drive all the sulphur dioxide and hydrogen chloride, and distilling 190 g. of phenyl propionate, b.p. 202-212° (the pure substance boils at 211°) are obtained. 

Ethyl benzyl ketone. Use 204 g. of phenylacetic acid (m.p. 77°) and 333 g. (335 -5 ml.) of propionic acid (b.p. 139-141°), but omit the extraction with benzene when working up the distillate. Distil the dried... 

Ethyl p-phenylethyl ketone. Use 100 g. of pure hydrocinnamic acid and 200 g. (201 -5 ml.) of pure propionic acid. Fractionation of the distillate yields 70 g. of diethyl ketone (b.p. 100-102°), 72 g. of ethyl p-phenyl-ethyl ketone (b.p. 245-249° the pure ketone boils at 248°), and 18 g, of crude di-p-phenylethyl ketone (high b.p. residue). 

The Stobbe condensation thus provides a method for introducing a propionic acid residue at the site of a carbonyl group. 

Takatori (274) formylated 2-amino-4-methylthiazole with formic acid. When NHj is bubbled for 6 hr into a mixture of 2-amino-4-methyl-thiazole and propionic acid at 100°C, 2-propionamido-4-methylthiazole is obtained (275). 

The three thiazoleacetic acids and higher homologs such as the derivatives of propionic acid have been synthesized (5), They are usually prepared by the Hantzsch s method, either as the free acid or as the ester from which the free acid is obtained by hydrolysis (49, 73). 

It IS hard to find a class of compounds in which the common names of its members have influenced organic nomenclature more than carboxylic acids Not only are the common names of carboxylic acids themselves abundant and widely used but the names of many other compounds are derived from them Benzene took its name from benzoic acid and propane from propionic acid not the other way around The name butane comes from butyric acid present m rancid butter The common names of most aldehydes are derived from the common names of carboxylic acids—valeraldehyde from valeric acid for exam pie Many carboxylic acids are better known by common names than by their systematic ones and the framers of the lUPAC rules have taken a liberal view toward accepting these common names as permissible alternatives to the systematic ones Table 19 1 lists both common and systematic names for a number of important carboxylic acids... 

Water Formic acid Butyric acid Water Formic acid Propionic acid Water... 

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