Terpenes and Terpenoids
Terpenes and Terpenoids

Author: Shagufta Perveen

Publisher: BoD – Books on Demand

Published: 2018-12-19

Total Pages: 154

ISBN-13: 1789847761

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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.

Terpenes
Terpenes

Author: Eberhard Breitmaier

Publisher: John Wiley & Sons

Published: 2006-12-13

Total Pages: 223

ISBN-13: 3527609105

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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.

Modern NMR Approaches to the Structure Elucidation of Natural Products
Modern NMR Approaches to the Structure Elucidation of Natural Products

Author: Antony Williams

Publisher: Royal Society of Chemistry

Published: 2016-12-14

Total Pages: 532

ISBN-13: 1849733937

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The Ghanian plant Cryptolepis sanguinolenta is the source of a series of fascinating indoloquinoline alkaloids. The most unusual member of this alkaloid series was initially proposed to be a spiro nonacyclic structure, named cryptospirolepine, and was elucidated in 1993 based on the technologies available at that time. There were, however, several annoying attributes to the structure that bothered analysts for the ensuing 22 years. During the two decades that followed the initial work there have been enormous developments in NMR technology. Using new experimental approaches, specifically homodecoupled 1,1- and 1,n-HD-ADEQUATE NMR experiments developed in 2014, the structure of only a 700 µg sample of cryptospirolepine has been revised and is shown on the cover of this volume. The confluence of the NMR technological and methodological advances that allowed the revision of the structure of cryptospirolepine using a submilligram sample seems a fitting example for this book, which is dedicated to the NMR characterization of various classes of natural products. Volume 2 considers data processing and algorithmic based analyses tailored to natural product structure elucidation and reviews the application of NMR to the analysis of a series of different natural product families including marine natural products, terpenes, steroids, alkaloids and carbohydrates. Volume 1 discusses contemporary NMR approaches including optimized and future hardware and experimental approaches to obtain both the highest quality and most appropriate spectral data for analysis. These books, bringing together acknowledged experts, uniquely focus on the combination of experimental approaches and modern hardware and software applied to the structure elucidation of natural products. The volumes will be an essential resource for NMR spectroscopists, natural product chemists and industrial researchers working on natural product analysis or the characterization of impurities and degradation products of pharmaceuticals that can be as scarce as natural product samples.

Natural Products
Natural Products

Author: Raphael Ikan

Publisher: Elsevier

Published: 2013-10-22

Total Pages: 316

ISBN-13: 0080512429

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This new edition has been updated to include the following: The use of biomarkers (organic compounds in the geospherical record with carbon skeletons) reflecting the upsurge in geoporphyrin research primarily due to MS, yeast RNA nucleic acid studies: reversed-phase HPLC of amino acids; brewing industry applications (HPLC evaluation of carotenoids in orange juice and of "debittered" citrus); HPTLC of carbohydrates; synthesis of a sweetening agent from citrus peels, synthesis and degradation of alkaloids and of sterols, GC/MS uses with sterols, petroleum products, and aromatic constituents of wine and grape juice, flash chromatography of essential oils, optical purity of enantiomers affecting flavors, fragrances, and pheromones, as well as studies of lattice inclusion compounds 1H- and 13C-NMR, MS, IR and UV data are presented for most natural products. Biomarkers—organic compounds in the geospherical record with carbon skeletons—reflecting the upsurge in geoporphyrin research primarily due to MS Yeast RNA nucleic acid studies Reversed-phase HPLC of amino acids, citrus juice components, and HPLC in brewing industry application HPTLC of carbohydrates 1H- and 13C-NMR: Sweetness evaluation and synthesis of a sweetening agent from citrus peels; seed oil sesamolin; alkaloids (strychnine, piperine, caffeine); and sterol analyses GC/MS: sterols, petroleum studies, aromatic constituents of wine and grapejuice Flash chromatography of essential oils Optical purity of enantiomers affecting flavors, fragrances, and pheromones Materials science studies of lattice inclusion compounds

Organic Geochemistry
Organic Geochemistry

Author: Geoffrey Eglinton

Publisher: Springer Science & Business Media

Published: 2013-11-11

Total Pages: 850

ISBN-13: 3642877346

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For many years, the subject matter encompassed by the title of this book was largely limited to those who were interested in the two most economically important organic materials found buried in the Earth, namely, coal and petroleum. The point of view of any discussions which might occur, either in scientific meetings or in books that have been written, was, therefore, dominated largely by these interests. A great change has occurred in the last decade. This change had as its prime mover our growing knowledge of the molecular architecture of biological systems which, in turn, gave rise to a more legitimate asking of the question: "How did life come to be on the surface of the Earth?" A second motivation arose when the possibilities for the exploration of planets other than the Earth-the moon, Mars, and other parts of the solar system-became a reality. Thus the question of the possible existence of life elsewhere than on Earth conceivably could be answered.