N-Pentanoic acid

Based on the equation found in Problem 23, estimate the total energy of n-pentanoic acid by extrapolation to 5 carbon atoms. Carry out the calculation at the 6-3IG MP2 level in the GAMESS implementation and determine the 9c difference between the G.AMKSS calculation and the extrapolated estimate. [Pg.332]

Valeric acid (n-pentanoic acid) [109-52-4] M 102.1, b 95 /22mm, 186.4 /atm, d 0.938, n 1.4080, pK 4.81. Water was removed from the acid by distn using a Vigreux column, until the boiling point reached 183 . A few crystals of KMn04 were added, and after refluxing, the distn was continued, [Andrews and Keefer 7 Am Chem Soc 83 3708 1961.]... [Pg.384]

In contrast to the results (entries 25-29 and 31), saturated n-pentanoic acid is preferentially incorporated in CA cavities as compared with 2-pentenoic acid. This implies that the separation depends not only on the space effect of the cavities but also on host-guest hydrogen-bond interaction, which is observed in the inclusion crystals of CA with acetic acid [26a], This indicates that the separation mechanism of protic compounds cannot be understood only in the terms of the fit between the host cavity and guest molecule. [Pg.113]

Limonius californicus, utilize n-pentanoic acid (valeric) as a long-distance sex pheromone (487. Each female synthesizes in excess of 100 pg. of this acid, which is presumably stored in the sex attractant gland in an inactive form. Isomeric C5 acids possess no demonstrable activity as sex pheromones. [Pg.211]

SYNS BUTANECARBOXYI.IC ACID l-BUTANE-CARBOXYLIC ACID FEMA No. 3101 PENTANOIC ACID n-PENTANOIC ACID PROPYLACETIC ACID VALERIANIC ACID n-VALERIC ACID... [Pg.1415]

PENTANETHIOL, 2,4,4-TRIMETHYL- see OFE030 PENTANOIC ACID see VAQOOO n-PENTANOIC ACID see VAQOOO tert-PENTANOIC ACID see PJA500 PENT-A40IC ACID, 4-((3,4-DICHLOROBENZOYL)AMINO)-5-((3-METH0XYPR0PYL)PENTYLAMIN0)-5-0X0-, (+-). see LlllOO... [Pg.1829]

PENTANOIC ACID or n-PENTANOIC ACID (109-52-4) Combustible liquid (flash point 205°F/96°C). Incompatible with sulfuric acid, caustics, ammonia, amines, isocyanates, alkylene oxides, epichlorohydrin, strong oxidizers. [Pg.935]

Beilstein Handbook Reference) AI3-08657 BRN 0969454 Butanecarboxylic acid 1-Butanecarboxylic acid, EINECS 203-677-2 FEMA No. 3101 HSDB 5390 Kyselina valerova NSC 406833 Pentanoic acid n-Pentanoic acid Propylacetic acid Valerianic acid Valeric acid n-Valeric acid. Intermediate for flavors and perfumes, ester-type lubricants, plashcizers, pharmaceuticals, and vinyl stabilizers. Crystals mp = -34° bp 186.1° d = 0.9391 soluble in H2O, EtOH, Et20, CCI4. BASF Corp. Sigma-Aldrich Fine Chem. Union Carbide Corp. [Pg.662]

Ainina.4,4,4-trifluoro-n-butyric acid 25 1 600 8 169 74 2-Amino-n-pentanoic acid 25 2 318 9 808... [Pg.429]

Valproic acid (2-propyl-n-pentanoic acid, VP A) is an anticonvulsant widely used in the treatment of various epileptic disorders. It has been known that VPA administration caused severe hepatic dysfunction similar to Reye s syndrome in a small number of patients. Deaths from hepatotoxicity were also reported. VPA affects carnitine and ammonia levels and other metabolic parameters related to fatty acid oxidation. The potential hepatotoxicity by VPA is caused by its unsaturated metabolites, such as 4-en-... [Pg.177]

Synonyms Butanecarboxylic acid 1 -Butanecarboxylic acid Carboxylic acid Cs Pentanoic acid n-Pentanoic acid Propylacetic acid Valerianic acid Valeric acid... [Pg.1412]

Pentanoic acid n-Pentanoic acid. See n-Valeric acid... [Pg.3244]

CAS 109-52-4 EINECS/ELINCS 203-677-2 UN 1760 FEMA 3101 Synonyms Butanecarboxylic acid 1-Butanecarboxylic acid Carboxylic acid C Pentanoic acid n-Pentanoic acid Propylacetic acid Valerianic acid Valeric acid Classification Aliphatic carboxylic acid Definition Distilled from roots of Valeriana officinalis... [Pg.4656]

Dioxo-n-pentanoic acid 25 2 58 164 (3-Methoxyphenoxy)acetic acid 25 3 14 ... [Pg.430]

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