Camphoric acid

Camphoric acid (l,2,2-trimethyl-cyclopentan-lr,3c-dicarboxylic acid)... [Pg.153]

Solids. —It may Idc a hydrocM bon (c .g., paraffin wa, naphthalene) highei alcohol eg., cetyl alcohol) aldehyde e.g., z5-hydroxybenzaldehyde) ketone and qiiinonc e.g., benzo-phenone, camphor) acid (higher fatty, e.g., palmitic acid or aromatic acid) ester (of glycerol, phenols or aromatic alcohols) phenol e.g., thymol),... [Pg.336]

The cyclized analog of meralluride is prepared by a similar synthesis. Thus, condensation of camphoric acid (42) (obtained by oxidation of camphor) with ammonia gives the bicyclic succinimide (44). Reaction with allyl isocyanate followed by ring opening and then reaction with mercuric acetate affords the mercury derivative (45) as the acetate rather than the hydroxide as above. Reaction with sodium chloride converts that acetate to the halide (46). Displacement on mercury with the disodium salt of thioglycollic acid affords the diuretic mercaptomerine (47). ... [Pg.224]

Fenchene dibromide Urethane o isofenchyl alcoho Isofenchone semicarbazone oxime Monobrom-isofenchone. Isofencho-camphoric acid... [Pg.55]

When distilled with phosphorus pentoxide, camphor yields cymene, and with iodine, carvacrol. Both of these bodies are para-derivatives of benzene. On oxidation with nitric acid camphor yields many acids, of which the chief are camphoric acid, CjgHjgO, camphanic acid, CjoHj O, and camphoronic acid, CgHj Og. The constitution of these acids has an important bearing on that of camphor. Many formulae have been suggested for camphor during the past few years, but that of Bredt is now universally accepted, and has received complete confirmation by Komppa s synthesis of camphoric acid. This synthesis confirms the formula for camphoric acid as—... [Pg.242]

Kampher-dl, . camphor oil (Pharm.) camphorated oil. -phoron, n. camphorphorone. -saure, /. camphoric acid, -sauresalz, n. camphorate. -spiritus, m. spirit of camphor, -wein, m. camphorated wine. [Pg.236]

S(-)-x-(l-Naphthyl)ethylamine has been prepared by resolution of the racemic amine with camphoric acid in unspecified yield.2,3... [Pg.82]

C H, i04 124-83-4) see Carnitine Dexfenfluramine (lfi,35)-(-l-)-camphoric acid see under D-camphoric acid camptothecin... [Pg.2320]

Uric Acid (synthetic) Camphoric Acid Camphoronic Acid o-Esdragole from phenyl-allyl ether Ionone... [Pg.423]

Johnson and Klein (72) prepared the chiral diol (+)-1,2,2-trimethyl-1,3-bis(hydroxymethyl)cyclopentane (50) by the LAH reduction of (+ )-camphoric acid. Consideration of models of the complex of 50 with LAH suggested that... [Pg.255]

The total synthesis was restricted then to the synthesis of camphoric acid (13), since it had been previously reconverted to camphor [26]. [Pg.19]

Alcoholic camphoric acid reacts with alkaline suspensions of trace polonium giving a product soluble in benzene or chloroform (122). [Pg.222]

Salts have been prepared with optically active camphor sulphonic acids. These also are yellow crystalline bodies, but no resolution of the base has been effected. d-Camphoric acid, d-tartaric acid, and d-nitro-camphor compounds were also prepared, and again no resolution was effected. Hence it is concluded that the hydroxo- and nitroso-groups are probably in the 1-, 0-, or trans-position. [Pg.197]

Formation of a six-membered ring by cyclization of a,y-carboxylic acid groups is also observed in the reaction of sulfur tetrafluoride with (1 / , S)-( + )-camphoric acid besides 1,2,2-trimethyl-3-(trifluoromethyl)cyclopentanecarbonyl fluoride (20) and camphoroyl difluoride (21). the bicyclic tetrafluoro ether, 2,2,4,4-tetrafluoro-l,8,8-trimethyl-3-oxabicyclo[3.2.1]octane (22). is formed. The ratio of products strongly depends on the reaction conditions.250... [Pg.356]

Camphoric acid and derivs 2 C23 d-camphoric acid peracid 2 C23... [Pg.509]

Camphoric acid (m.p. 187) Carbon dioxide (miscible) Carbon disulfide... [Pg.86]

Camphoric Acid (CamphersSure in Ger), C1QH1604 mw 200.23. Several isomers and forms are described in Beil 9, 745,760,(324,332) ... [Pg.418]

R,3S)-Camphoric acid (99% purity) was obtained tram Aldrich Chemical Company, Inc. [Pg.51]

Isosorbide (3) and isomannide (4) act as chiral auxiliaries for the sodium borohydride reduction of some prochiral ketones optical yields of up to 20% were achieved. It seems that the isohexides form chiral complexes with sodium borohydride, whereby the chiral information is transferred to the substrate.219 Optical active alcohols were obtained by reduction of appropriate ketones with sodium or lithium borohydride in the presence of isosor-bide.219 Asymmetric reduction of propiophenone using sodium borohydride, modified with (+)-camphoric acid and isosorbide, resulted in C -phenylethylcarbinol in 35% enantiomeric excess.2,9b... [Pg.160]

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