Download or read book Chemistry of Thioamides written by Toshiaki Murai and published by Springer. This book was released on 2020-08-14 with total page 238 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book covers whole aspects of the sulfur isologues of amides. Starting from the synthetic methods of thioamides, a range of synthetic applications to the construction of carbon–sulfur and carbon–carbon bonds, to asymmetric reactions, to formation of heterocycles are described. Among the array of thiocarbonyl compounds, thioamides are readily handled in room temperature air. Some of their characteristic features are that the polarity of C=S bonds in thioamides is much smaller than C=O bonds in ordinary amides, that thioamides possess higher HOMO and lower LUMO when compared with those of ordinary amides, and that carbon atoms alpha to the C=S and nitrogen atoms in thioamides are more acidic than those in ordinary amides. Theoretical studies further disclose their features. Thioamides are also used as ligands to a wide variety of metals. Their unique photophysical properties and catalytic activities are described here. Characteristic features of biologically relevant thioamides, e.g., thiopeptides and related compounds, are the final focus of the book.

Download or read book Cyclometalation Reactions written by Iwao Omae and published by Springer Science & Business Media. This book was released on 2014-01-23 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book provides a review of cyclometalation reactions and organometallic intramolecular-coordination five-membered ring products, the most active type of reactions in synthetic organic reactions and their products. Included is the discovery of intramolecular-coordination bonds in cyclometalation reactions and the characteristics of those reactions, as well as the reasons that their five-membered ring compounds are very easily synthesized through such reactions. In addition, the applications of cyclometalation reactions and five-membered ring products, synthetic applications, catalysts, and other products are described. These topics are of special interest for industrial researchers.

Download or read book Metropolitan Regions Planning and Governance written by Karsten Zimmermann and published by Springer Nature. This book was released on 2019-10-24 with total page 272 pages. Available in PDF, EPUB and Kindle. Book excerpt: The aim of this book is to investigate contemporary processes of metropolitan change and approaches to planning and governing metropolitan regions. To do so, it focuses on four central tenets of metropolitan change in terms of planning and governance: institutional approaches, policy mobilities, spatial imaginaries, and planning styles. The book’s main contribution lies in providing readers with a new conceptual and analytical framework for researching contemporary dynamics in metropolitan regions. It will chiefly benefit researchers and students in planning, urban studies, policy and governance studies, especially those interested in metropolitan regions. The relentless pace of urban change in globalization poses fundamental questions about how to best plan and govern 21st-century metropolitan regions. The problem for metropolitan regions—especially for those with policy and decision-making responsibilities—is a growing recognition that these spaces are typically reliant on inadequate urban-economic infrastructure and fragmented planning and governance arrangements. Moreover, as the demand for more ‘appropriate’—i.e., more flexible, networked and smart—forms of planning and governance increases, new expressions of territorial cooperation and conflict are emerging around issues and agendas of (de-)growth, infrastructure expansion, and the collective provision of services.