B. P. Stark – författare
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2 produkter
2 produkter
E-bok
PDF, Engelska, 2013356 kr
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The Determination of Epoxide Groups describes the advantages and limitations of the methods for determination of 1,2-epoxide groups of various kinds. Chapter 1 examines the chemical reactivities of different epoxides under various conditions, which is of fundamental importance in the choice of the analytical method to be used. Chapter 2 explores most of the analytical work on epoxides involving ring-opening with HCl or HBr. Chapter 3 deals with the alternative techniques involving quantitative rearrangement of epoxides, or ring-opening under non-acidic conditions. This chapter also contains descriptions of various miscellaneous analytical techniques, including very sensitive methods, as well as the use of infrared spectroscopic techniques for analysis of epoxides and the study of their reactions, particularly the cure of epoxy resins. Chapter 4 summarizes the advantages and limitations of the various methods, along with the main factors affecting choice of experimental. This book is of great value to analytical and organic chemists, researchers, and students.
E-bok
PDF, Engelska, 2013783 kr
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Extrusion Reactions presents a critical review of the reactions which presents a rupture of both of the bonds connecting an atom or a small group of atoms into a ring system. It discusses the loss of small fragments from cyclic structures under non-catalyzed conditions. It addresses those reactions wherein the major output and starting materials are cyclic. It demonstrates the general characteristics of the main classes of residua. Some of the topics covered in the book are the conditions for extrusion; types of concurrent reactions; choice of experimental conditions in extrusion; structural requirements for extrusion, and special cases of the reaction; extrusion from analogous systems; extrusions of carbon monoxide and carbon dioxide; and extrusion of sulfur dioxide and oxidized sulfur fragments. The extrusions of the elementary chalcogens: sulfur, selenium, and oxygen are fully covered. Extrusion of nitrogen from pyrazolines and 3H-pyrazoles are extensively discussed. An in-depth evaluation of the course of extrusion from pyrazolines is provided. The extrusion of nitrogen from triazolines and formation of aziridines from triazolines are also presented. A chapter is devoted to possible intervention of oxadiazolines and thiadiazolines in syntheses of oxirans. The book can provide useful information to chemists, students, and researchers.