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Isocinchomeronic acid

The alkyl pyridines (6) and (7) can be transformed either to nicotinic acid or nicotinonitrile. In the case of nicotinic acid, these transformations can occur by either chemical or biological means. From an industrial standpoint, the majority of nicotinic acid is produced by the nitric acid oxidation of 2-meth5i-5-ethylpyridine. Although not of industrial significance, the air oxidation has also been reported. Isocinchomeronic acid (10) (Fig. 2) is formed as an intermediate. [Pg.49]

Isobutyl octadecanoate, i75 Isobutyraldehyde, m3 89 Isobutyric acid, m402 Isocapronitrile, m361 Isocinchomeronic acid, p269 Isocrotonic acid, b483 Isocumene, p225... [Pg.249]

SYNS BAY 1518 (2,4 -BIPYRIDINE)-3, 5 -DICARBOXYLIC ACID, l ,4 -DIHYDRO-2, 6 -DIMETHYL-,-DIETHYL ESTER ISOCINCHOMERONIC ACID, 1,4-DIHYDRO-2,6-DIMETHYL-4-(2-PYRIDYL)-, DIETHYL ESTER 3,5-PYRIDINEDICARBOXYLIC ACID, 1,4-DIHYDRO-2,6-DIMETHYL-4-(2-PYRIDYL)-, DIETHYL ESTER... [Pg.487]

Pyridine-2,5-dicarboxylic acid (isocinchomeronic acid) (C H.O.N) 700M... [Pg.459]

Isocholesterol. See Lanosterol Isocinchomeronic acid. See Pyridinedicarboxylic acid Isocineole. See 1,4-Cineole isoCiear 42 High Fructose Corn Syrup, isoCiear 55 High Fructose Corn Syrup. See Corn syrup... [Pg.2218]

Pyridinedicarboxylic acid CAS 100-26-5 EINECS/ELINCS 202-834-2 Synonyms Isocinchomeronic acid 2,5-Pyridinedicarboxylic acid Pyridine-2,5-dicarboxylic acid Classification Organic compd. [Pg.3788]

Synonims isocinchomeronic acid mixture of polycarbonic acids, inorganic carbonates, and fatty acid derivatives aminoacetic acich aminosuccinic acid poly(glycolic acid) polyoxyacetyl poly(L-lactic acid) ... [Pg.6]

Synonims 2-benzimidazolone phenizidole isocinchomeronic acid 2,4,6-pyrimidinetriamine organically modified CB -i- low-molecular-weight organic compound 2,4,6-triamino-s-triazine tetramethylsilicate 2,4,6-tris(chloroamine)triazine 2,4-dihydroxy-5-methylpyrimidine... [Pg.30]

The use of cupric nitrate as a catalyst in these systems has also been described. The reaction usually proceeds to isocinchomeronic acid (X-5S, R = CO2 H), which is decarboxylated to nicotinic acid (X-S6) either in situ or in a subsequent operation. Under specific conditions of temperature and pressure, the reaction can be stopped at the 6-methylnicotinic acid (X-55, R = CHj) stage. It thus seems clear that under those conditions the 5-alkyl group is more prone to oxidative attack. The same nitric acid reaction system, with or without... [Pg.268]

Potassium nicotinate (X-117) when autoclaved with Cdp2 under COj pressure yields isocinchomeronic acid (X-118). The same product is obtained when potas-... [Pg.280]

The selective esterification of isocinchomeronic acid continues to be of obvious interest in the large-scale preparation of nicotinic acid. Selectivity is attempted by hydrolysis of the diesters as well as by selective monoesterification. ... [Pg.285]

Isocinchomeronic acid (X-172, X = OH) when treated with PCI5 at 100° afforded the corresponding diacid chloride (X-172, X = Cl). Ammonolysis of the latter followed by dehydration with POCI3 gave 2,5-dicyanopyridine (X-173). ... [Pg.292]

A -Oxides of pyridinecarboxylic acids are prepared by oxidation of their potassium salts in hydrogen peroxide/acetic acid. (See also Chapter IV.) The A-oxides, particularly those derived from isocinchomeronic acid, are reputed to inhibit the decomposition of peracids. ... [Pg.299]

See other pages where Isocinchomeronic acid is mentioned: [Pg.49]    [Pg.223]    [Pg.1386]    [Pg.153]    [Pg.279]    [Pg.153]    [Pg.1734]    [Pg.521]    [Pg.49]    [Pg.708]    [Pg.98]    [Pg.427]    [Pg.133]    [Pg.812]    [Pg.812]    [Pg.572]    [Pg.564]    [Pg.478]    [Pg.205]    [Pg.427]    [Pg.334]    [Pg.267]    [Pg.267]    [Pg.370]    [Pg.606]    [Pg.551]    [Pg.617]    [Pg.614]    [Pg.605]    [Pg.318]    [Pg.616]    [Pg.708]    [Pg.564]    [Pg.505]   
See also in sourсe #XX -- [ Pg.459 ]

See also in sourсe #XX -- [ Pg.505 ]



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