Progress in the Chemistry of Organic Natural Products 115, Kinghorn A. Douglas, Falk Heinz, Gibbons Simon
Название: Organic Chemistry, 2 ed. ISBN 9780199270293 ISBN: 0199270295 ISBN-13(EAN): 9780199270293 Издательство: Oxford Academ Рейтинг: Цена: 11562.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Inspiring and motivating students from the moment it published, Organic Chemistry has established itself in just one edition as the students` choice of organic chemistry text. Its explanatory, mechanistic, evidence-based approach makes it perfect for fostering a true understanding of the subject.
Автор: A. Douglas Kinghorn; Heinz Falk; Simon Gibbons; Ju Название: Progress in the Chemistry of Organic Natural Products 109 ISBN: 3030128571 ISBN-13(EAN): 9783030128579 Издательство: Springer Рейтинг: Цена: 39130.00 р. Наличие на складе: Поставка под заказ.
Описание: This volume comprises three reviews. The first describes isolation, structure determination, syntheses, and biochemistry of the low molecular weight compounds of the secretion of exocrine glands of termies with emphasis to pheromones and defensive compounds. The second review describes recent studies on isolation and structure elucidation of bioactive compounds involved in the life cycle and determination of the molecular mechanisms of the developmental events observed in higher plants. The third contribution reports on the current body of knowledge of African propolis, with a particular emphasis on its chemistry and biological activity.
Описание: The volumes of this classic series, now referred to simply as "Zechmeister" after its founder, L. The volumes contain contributions on various topics related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers.
Описание: Substances belonging to this group of organic compounds are wi, lely distributed in Nature, being found in plants, both higher and lower fungi and, upto the present time, in one animal source, sheep wool-fat. For a long- time no real differentiation was possible between the tetra- and penta- cyclic triterpenes and the sterols. Then the two latter became disting- uishable by their selenium. -dehydrogenation products, i. e., picene and naphthalene derivatives from the pentacyclic triterpenes and DIELS' hydrocarbon from the sterols. It is now apparent that those compounds yielding predominantly I: 2: 8-trimethylphenanthrene on dehydro- genation represent yet another class, and this property is regarded as typical of the tetracyclic triterpenes. The group contains both C and C 30 3l compounds and, although the latter fall outside RUZICKA'S strict definition of triterpenes (I42), it seems desirable to permit this deviation. Members with thirty-two carbon atoms may well be discovered in due course. In a most- valuable account of the triterpenes written in I949, JEGER. (II3) was able to summarize all that was known about the tetra- cyclic group in a very small compass. Most of the work discussed in the present article has been published during the last five years and in that time the structures of some twenty compounds have been elucidated. Of outstanding importance is the revelation of close structural relation- ships tQ the steroids, and the presence of C and C side-chains, skeletally 8 9 identical with those of cholesterol and ergosterol.
Автор: Kinghorn A. Douglas, Falk Heinz, Gibbons Simon Название: Progress in the Chemistry of Organic Natural Products 112 ISBN: 3030529657 ISBN-13(EAN): 9783030529659 Издательство: Springer Цена: 41925.00 р. Наличие на складе: Есть у поставщика Поставка под заказ.
Описание: Saponins are complex molecules made up of sugars linked to a triterpenoid or a steroid or a steroidal alkaloid. This review incorporates newer trends in isolation and structure determination of triterpenoid saponins, new triterpenoid saponins isolated and biological properties of these products reported during the period late 1989-mid 1996.
Описание: 0 e The volumes of this classic series, now referred to simply as "Zechmeister" after its founder, L. The volumes contain contributions related to the origin, distribution, chemistry, synthesis, biochemistry, function or use of various classes of naturally occurring substances ranging from small molecules to biopolymers.
ООО "Логосфера " Тел:+7(495) 980-12-10 www.logobook.ru
