Victor Von Richter's Organic Chemistry; Or, Chemistry of the Carbon Compounds Volume 2

Victor Von Richter's Organic Chemistry; Or, Chemistry of the Carbon Compounds Volume 2

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This historic book may have numerous typos and missing text. Purchasers can usually download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1899 edition. Excerpt: ... yields an z'rnmerz' fl-thujonarnine. A third isothujonamine results from isothujonoxime (A. 286, 96), melting at 19. Pulegonamine (A. 262, 13; B. 29, R. 173). Mtralarnines have been obtained from nitroso-chlorides--cents.g., limonene--by transposition with primary and secondary bases. 4. THE RING-KETONES OF THE TERPAN OR MENTHAN GROUP. Ketones like these are found in the vegetable kingdom. They are produced by the oxidation of the corresponding secondary alcohols, and by continued oxidation they change to cyclic and aliphatic carboxylic acids, --decomposition pr0ducts, --the constitution of which furnish insight into the constitution of the ring-ketones and their derivatives. The ring-ketones of the terpan-group, like other ketones, are characterized by their oximes and the sparing solubility of their semicarbazones. tains the same relation to menthol that camphor bears to borneol (p. 324). It occurs in American and Russian peppermint oils, together with menthol, esters of menthol, menthene, and limonene. '.Menthone is known in two optically active modifications. 1-Menthone is obtained upon oxidizing menthol with potassium bichromate and sulphuric acid at a temperature not exceeding 50 (A. 250, 322). Its sp. gravity equals 0.896 (2o), a, _--_---28. Concentrated sulphuric acid, in the cold, rearranges 1-menthone to d-menthone, a, --..= + 28. The constitution of menthone (see p. 313) is demonstrated (1) by its conversion into 3-chlorcymene; PCIi changes menthone to die/zlor/rexa/zydrorymme, which splits off hydrogen chloride and becomes tetra/1)/droclzlorcymme; this in turn, by the action of bromine and quinoline, loses hydrogen and 3-c/zlarc/mm: results (B. 29, 3I4). (2) By the formation of I/1/mol(p. 144) through the elimination of 2HB
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Product details

  • Paperback | 240 pages
  • 189 x 246 x 13mm | 435g
  • United States
  • English
  • black & white illustrations
  • 1236861701
  • 9781236861702