Download or read book Studies of Some Functionally Substituted Acetylenes written by and published by . This book was released on 1975 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: The preparation of conjugated diynes is reviewed, concentrating on the principles and limitations of the available methods. The synthesis of penta-1,3-diynes, Me^iC^C' C^CCH^X (X = OH, Cl, Br, I) and Me3SiC^e-C=CCH(OEt)2 is reported; the chemistry of these compounds has been examined and is discussed in comparison with the analogous prop-1-ynes. The pentadiynes are poorly reactive when compared with their prop-1-ynyl homologues and do not couple satisfactorily with 1- alkynes or alkynyl Grignard reagents in the presence of copper (I). The formation of pentrdiynyl Grignard reagents, which is somewhat anomalous, proceeds with rearrangement of the conjugated diyne system. The possibility of promoting the reaction of alkynyl Grignard reagents with alkyl iodides has been investigated by studying the copper(I) catalysed reaction of trimethylsilylethynylmagnesium bromide with ethyl iodide. The synthesis of acetylene dicarboxylic acid halides has been exhaustively examined in an attempt to develop a practicable route to the acid chloride. The experiments indicate that the acid chloride is very sensitive to nucleophiles and readily decomposes.
Download or read book Synthetic Studies in the Preparation of a Variety of Substituted Acetylenes written by Jeffrey Norman Smith and published by . This book was released on 1971 with total page 162 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Acetylene Chemistry written by François Diederich and published by John Wiley & Sons. This book was released on 2006-03-06 with total page 528 pages. Available in PDF, EPUB and Kindle. Book excerpt: Acetylenes are an important and valuable class of compounds in organic synthesis. This book expands on this historically well-established concept, while incorporating the many new developments that have widened the number of applications in this field. It remains the only handbook available that embodies all the important facets of acetylene chemistry. Following the first section on synthesis, the leading authors deal with advanced materials before turning to the properties and theory of acetylenes, while a final section looks at the biological aspects. With its range of experimental procedures, this book is a practical aid for both organic and organometallic chemists, as well as for materials scientists, biochemists, and industrial chemists.
Download or read book Functional Molecular Silicon Compounds I written by David Scheschkewitz and published by Springer. This book was released on 2014-07-08 with total page 242 pages. Available in PDF, EPUB and Kindle. Book excerpt: The series Structure and Bonding publishes critical reviews on topics of research concerned with chemical structure and bonding. The scope of the series spans the entire Periodic Table and addresses structure and bonding issues associated with all of the elements. It also focuses attention on new and developing areas of modern structural and theoretical chemistry such as nanostructures, molecular electronics, designed molecular solids, surfaces, metal clusters and supramolecular structures. Physical and spectroscopic techniques used to determine, examine and model structures fall within the purview of Structure and Bonding to the extent that the focus is on the scientific results obtained and not on specialist information concerning the techniques themselves. Issues associated with the development of bonding models and generalizations that illuminate the reactivity pathways and rates of chemical processes are also relevant. The individual volumes in the series are thematic. The goal of each volume is to give the reader, whether at a university or in industry, a comprehensive overview of an area where new insights are emerging that are of interest to a larger scientific audience. Thus each review within the volume critically surveys one aspect of that topic and places it within the context of the volume as a whole. The most significant developments of the last 5 to 10 years should be presented using selected examples to illustrate the principles discussed. A description of the physical basis of the experimental techniques that have been used to provide the primary data may also be appropriate, if it has not been covered in detail elsewhere. The coverage need not be exhaustive in data, but should rather be conceptual, concentrating on the new principles being developed that will allow the reader, who is not a specialist in the area covered, to understand the data presented. Discussion of possible future research directions in the area is welcomed. Review articles for the individual volumes are invited by the volume editors. Readership: research scientists at universities or in industry, graduate students Special offer For all customers who have a standing order to the print version of Structure and Bonding, we offer free access to the electronic volumes of the Series published in the current year via SpringerLink.
Download or read book Some Variations in the Picon Method of Synthesis of Substituted Acetylenes a Thesis written by Andrew E. O'Keeffe and published by . This book was released on 1933 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book OTS written by United States. Dept. of Commerce. Office of Technical Services and published by . This book was released on 1973 with total page 8 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book The Chemistry of Reactions of Substituted Acetylenes with Cationic Hydrido platinum II Complexes written by Philip Louis Fiess and published by . This book was released on 1975 with total page 182 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book SOME POLYMERS OF SUBSTITUTED ACETYLENES written by B. J. MACNulty and published by . This book was released on 1965 with total page 10 pages. Available in PDF, EPUB and Kindle. Book excerpt: Polymers of low molecular weight were prepared from methyl propiolate, propiolamide and cyano-acetylene. These were briefly examined for heat resistance and semiconductive properties. (Author).
Download or read book Chemistry of Pyrroles written by Boris A. Trofimov and published by CRC Press. This book was released on 2014-10-13 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: During the last 30 years, knowledge of the essential role that pyrrole structures play in the chemistry of living organisms, drug design, and the development of advanced materials has increased. Correspondingly, research on the diverse issues of synthetic, theoretical, and applied chemistry has snowballed. Devoted to the latest achievements of this field, Chemistry of Pyrroles covers the discovery and development of a novel, facile, and highly effective method for the construction of the pyrrole ring from ketones (ketoximes) and acetylene in superbase catalytic systems (Trofimov reaction). It provides cutting-edge details on the preparation of valuable but previously inaccessible pyrrole compounds. It includes approximately 1,000 structures of novel pyrrole compounds, their yields, and physical-chemical characteristics. The authors analyze conditions of typical syntheses, limitations of their applicability, and possibility of vinyl chloride or dichloroethane application instead of acetylene. They examine chemical engineering aspects of the first synthesis of tetrahydroindole and indole from commercially available oxime of cyclohexanone and acetylene. In addition, the book discusses new facets of pyrroles and N-vinyl pyrroles reactivity in the reactions with the participation of both the pyrrole ring and N-vinyl groups. The book provides condensed, clear-cut information on novel syntheses of substituted pyrroles as key structural units of living matter (chlorophyll and hemoglobin), pharmaceuticals, and monomers for optoelectronic materials. It includes tables that provide references to original works, forming a guide to a variety of the reactions and synthesized compounds discussed. With coverage of the broad range of pyrrole chemistry and methods for their synthesis, it provides both a theoretical and an experimental basis for drug design.
Download or read book Research on Acetylenes written by Thomas Lloyd Jacobs and published by . This book was released on 1957 with total page 154 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Studies in Condensations Involving Acetulene and Substituted Acetylene written by Pamela Rowe-Smith and published by . This book was released on 1950 with total page 122 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book BLLD Announcement Bulletin written by British Library. Lending Division and published by . This book was released on 1977 with total page 596 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Some Alcohol Additional Products of Substituted Acetylenes written by Donald Bernard Killian and published by . This book was released on 1936 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book Papers and Patents from Olin Research written by Olin Mathieson Chemical Corporation and published by . This book was released on 1963 with total page 776 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Download or read book High Pressure Chemistry of Substituted Acetylenes written by and published by . This book was released on 2011 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: High pressure in situ synchrotron x-ray diffraction experiments were performed on substituted polyacetylenes: tert-butyl acetylene [TBA: (CH3)3-C{triple_bond}CH] and ethynyl trimethylsilane [ETMS: (CH3)3-Si{triple_bond}CH] to investigate pressure-induced chemical reactions. The starting samples were the low temperature crystalline phases which persisted metastably at room temperature and polymerized beyond 11 GPa and 26 GPa for TBA and ETMS respectively. These reaction onset pressures are considerably higher than what we observed in the shockwave studies (6.1 GPa for TBA and 6.6 GPa for ETMS). Interestingly, in the case of ETMS, it was observed with fluid ETMS as starting sample, reacts to form a semi-crystalline polymer (crystalline domains corresponding to the low-T phase) at pressures less than ≈2 GPa. Further characterization using vibrational spectroscopy is in progress.
Download or read book The Regioselective Carbonylation and Related Reactions of Functionally Substituted Alkenes and Alkynes Catalyzed by Rhodium 1 Complexes written by Jian-Qiang Zhou and published by . This book was released on 1993 with total page 386 pages. Available in PDF, EPUB and Kindle. Book excerpt: This thesis comprises research on the regioselective carbonylation and related reactions involving various unsaturated organic substances such as alkenes, alkynes, allylic esters, alcohols and amines, open chain and cyclic $\alpha$,$\beta$-unsaturated esters using cationic, neutral and zwitterionic rhodium(I) complexes as catalysts. New methods for the preparation of valuable functionally substituted derivatives have been developed.
Download or read book Index to Theses Accepted for Higher Degrees by the Universities of Great Britain and Ireland and the Council for National Academic Awards written by and published by . This book was released on 1978 with total page 308 pages. Available in PDF, EPUB and Kindle. Book excerpt:
