The Chemistry of the Terpenes PDF Download

Author: A. R. Pinder
Publisher:
ISBN:
Category : Pharmacy
Languages : en
Pages : 240

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Author: Eberhard Breitmaier
Publisher: John Wiley & Sons
ISBN: 3527609105
Category : Science
Languages : en
Pages : 223

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This concise overview of terpenes and their applications covers the structure, natural sources, biological and pharmacological effects, as well as selected total syntheses of the compound. This book includes a chapter on structure determination, as well as added information on biogenesis, polycyclic terpenes, gingkoloids and neo-hopanes. This title is an ideal introductory book for anybody starting work in this field.

Author: Friedrich Heusler
Publisher:
ISBN:
Category : Terpenes
Languages : en
Pages : 470

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Author: Friedrich Heusler
Publisher: Theclassics.Us
ISBN: 9781230469409
Category :
Languages : en
Pages : 170

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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. 1902 edition. Excerpt: ...this alcohol as identical with oxy-2-hexahydro-p-cymene (tetrahydrocarveol), which was prepared by Baeyer in the reduction of dihydrocarveol, and by Wallach by the reduction of carvenone. The results of Wallach's1 researches fully establish Semmler's view. Carvotanacetone unites with hydrogen sulphide in ammoniacal solution;2 the product melts at about 95. Carvotanacetoxime, C10H18NOH, is obtained from crude carvotanacetone, as already indicated; it crystallizes from methyl alcohol, and melts at 92 to 93. It is optically inactive (Wallach Wallach obtained an oxime having the same melting point (93 to 94) from the fraction of thuja oil, which boils at 220 to 230. Carvotanacetone semicarbazone forms orthorhombic tablets or acute prisms, and melts at 177 (Baeyer3). According to Harries, the oxaminoxime of carvotanacetone sinters at 155 and melts at 162; it was not obtained quite pure, hence Harries 4 regards it as probable that carvotanacetone is a mixture of the racemic form of dihydrocarvone with other compounds. When carvotanacetone is oxidized with a dilute solution of potassium permanganate, it yields pyruvic and isopropylsuccinic acids. From this fact Semmler2 concludes that carvotanacetone is an orAo-terpene ketone, and that the pseudo-ketone corresponding to it is found in terpenonef C10H16O (obtained from tetrahydrocarvone). 11. PULEGONE, C10H16O. The ethereal oils of Mentha puleffium and Hedeoma pnlegioides Persoon, which are sold under the name of pennyroyal oil, contain a i Wallach, Ber., 28, 1955. Semmler, Ber., 27, 895; S3, 2454. Baeyer, Ber., 27, 1923; see Harries, Ber., S4, 1924. Harries, Ber., 34, 1924. 3Baeyer and Oehler, Ber., 29, 35. ketone, C10H16O, as their chief constituent; this ketone was subjected to a detailed...

Author: Shagufta Perveen
Publisher: BoD – Books on Demand
ISBN: 1789847761
Category : Science
Languages : en
Pages : 154

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Terpenes belong to the diverse class of chemical constituents isolated from materials found in nature (plants, fungi, insects, marine organisms, plant pathogens, animals and endophytes). These metabolites have simple to complex structures derived from Isopentyl diphosphate (IPP), dimethyl allyl diphosphate (DMAPP), mevalonate and deoxyxylulose biosynthetic pathways. Terpenes play a very important role in human health and have significant biological activities (anticancer, antimicrobial, anti-inflammatory, antioxidant, antiallergic, skin permeation enhancer, anti-diabetic, immunomodulatory, anti-insecticidal). This book gives an overview and highlights recent research in the phytochemical and biological understanding of terpenes and terpenoid and explains the most essential functions of these kinds of secondary metabolites isolated from natural sources.

Author: Charles S Sell
Publisher: Royal Society of Chemistry
ISBN: 178801832X
Category : Science
Languages : en
Pages : 432

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Terpenoids play an important part in all our lives, from Vitamin A and hormones to perfumes and pharmaceuticals. This book provides an introduction to terpenoid chemistry, concentrating on the lower terpenoids, but the basic principles taught are also the foundation for the chemistry of the higher terpenoids. Coverage includes: the biogenesis of terpenoids; some of the history of the field; the principles of structural determination; and the importance of stereochemistry and stereoselective synthesis. Carbocation chemistry is introduced, as are the principles of total and partial synthesis. Finally, industrial chemistry (both discovery chemistry and chemical process development) is discussed, using the volatile terpenoids of perfumery to illustrate basic concepts. Ideal as both an introduction to terpenoid chemistry and as a refresher course, A Fragrant Introduction to Terpenoid Chemistry, with its real-life problems and appreciation of the relevance of chemistry to everyday life, will prove invaluable to students, lecturers and industrialists alike.

Author: FRIEDRICH. HEUSLER
Publisher:
ISBN: 9781033009062
Category :
Languages : en
Pages : 0

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Author: Friedrich Heusler
Publisher:
ISBN: 9780598912008
Category : Terpenes
Languages : en
Pages : 457

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Author: Anthony Armin Newman
Publisher:
ISBN:
Category : Science
Languages : en
Pages : 536

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For research workers, advanced students and university lecturers.

Author: V. C. Runeckles
Publisher: Elsevier
ISBN: 1483220028
Category : Science
Languages : en
Pages : 252

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Book Description
Recent Advances in Phytochemistry, Volume 6: Terpenoids: Structure, Biogenesis, and Distribution covers the advances in the chemistry and biochemistry of terpenoids, and the use of information regarding the occurrence of such compounds in genetics and population ecology. The book discusses the applications of physical methods to some structural and stereochemical problems in terpenes and steroids; novel sesquiterpenes isolated in composites; and the chemistry and biogenesis of the quassinoids (Simaroubolides). The text then describes the recent developments in the biosynthesis of plant triterpenes; the mechanisms of indole alkaloid biosynthesis, recognition of intermediacy and sequence by short-term incubation; and the biochemistry and physiology of lower terpenoids. The genetic and biosynthetic relationships of monoterpenes; and the confirmation of a clinal pattern of chemical differentiation in Juniperus virginiana from terpenoid data obtained in successive years are also encompassed. Botanists, biochemists, and people involved in the study of phytochemistry will find the book invaluable.