scholarly journals Oxidative radical ring-opening/cyclization of cyclopropane derivatives

2019 ◽  
Vol 15 ◽  
pp. 256-278 ◽  
Author(s):  
Yu Liu ◽  
Qiao-Lin Wang ◽  
Zan Chen ◽  
Cong-Shan Zhou ◽  
Bi-Quan Xiong ◽  
...  
Keyword(s):  
Ring Opening ◽  
Scientific Community ◽  
Radical Ring ◽  
The Past ◽  
Cyclopropane Derivatives

The ring-opening/cyclization of cyclopropane derivatives has drawn great attention in the past several decades. In this review, recent efforts in the development of oxidative radical ring-opening/cyclization of cyclopropane derivatives, including methylenecyclopropanes, cyclopropyl olefins and cyclopropanols, are described. We hope this review will be of sufficient interest for the scientific community to further advance the application of oxidative radical strategies in the ring-opening/cyclization of cyclopropane derivatives.

scholarly journals Scientific literacy, public engagement and responsibility in science

2021 ◽  
pp. 209660832110096
Author(s):  
Daya Reddy
Keyword(s):  
Public Good ◽  
Genome Editing ◽  
Public Engagement ◽  
Scientific Literacy ◽  
Scientific Community ◽  
Global Public Good ◽  
Public Communication ◽  
Digital Revolution ◽  
The Past ◽  
Responsibility Of Scientists

This work addresses the issue of scientific literacy and its connection to the responsibility of scientists in relation to public engagement. The points of departure are, first, the notion of science as a global public good, and, second, developments in the past few decades driven largely by the digital revolution. The latter lend a particular urgency to initiatives aimed at promoting scientific literacy. Arguments are presented for reassessing approaches to public communication. The particular example of genome editing is provided as a vehicle for highlighting the challenges in engagement involving the scientific community, policymakers and broader society.

TiCp2Cl-Catalyzed Living Radical and Ring Opening Polymerizations Initiated from Epoxides and Aldehydes in the Synthesis of Linear, Graft and Branched Polymers

2004 ◽  
Vol 856 ◽  
Author(s):  
Alexandru D. Asandei ◽  
Isaac W. Moran ◽  
Gobinda Saha ◽  
Yanhui Chen
Keyword(s):  
Electron Transfer ◽  
Ring Opening ◽  
Glycidyl Methacrylate ◽  
Ring Opening Polymerization ◽  
Branched Polymers ◽  
Single Electron Transfer ◽  
Radical Ring ◽  
Polymer Architectures ◽  
Complex Polymer

ABSTRACTTi(III)Cp2Cl-catalyzed radical ring opening (RRO) of epoxides or single electron transfer (SET) reduction of aldehydes generates Ti alkoxides and carbon centered radicals which add to styrene, initiating a radical polymerization. This polymerization is mediate in a living fashion by the reversible termination of growing chains with the TiCp2Cl metalloradical. In addition, polymers or monomers containing pendant epoxide groups (glycidyl methacrylate) can be used as substrates for radical grafting or branching reactions by self condensing vinyl polymerization. In addition, Ti alkoxides generated in situ by both epoxide RRO and aldehyde SET initiate the living ring opening polymerization of ε-caprolactone. Thus, new initiators and catalysts are introduced for the synthesis of complex polymer architectures.

Radical Ring-Opening Copolymerization of 2-Methylene 1,3-Dioxepane and Methyl Methacrylate:  Experiments Originally Designed To Probe the Origin of the Penultimate Unit Effect

1999 ◽  
Vol 32 (5) ◽  
pp. 1332-1340 ◽  
Author(s):  
G. Evan Roberts ◽  
Michelle L. Coote ◽  
Johan P. A. Heuts ◽  
Leesa M. Morris ◽  
Thomas P. Davis
Keyword(s):  
Methyl Methacrylate ◽  
Ring Opening ◽  
Radical Ring

Scope and limitations of the nitroxide-mediated radical ring-opening polymerization of cyclic ketene acetals

2013 ◽  
Vol 4 (17) ◽  
pp. 4776 ◽  
Author(s):  
Antoine Tardy ◽  
Vianney Delplace ◽  
Didier Siri ◽  
Catherine Lefay ◽  
Simon Harrisson ◽  
...  
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring ◽  
Cyclic Ketene Acetals ◽  
Ketene Acetals

Copper-mediated controlled radical ring-opening polymerization (RROP) of a vinylcycloalkane

2008 ◽  
pp. 3049 ◽  
Author(s):  
Nikhil Kumar Singha ◽  
Amalin Kavitha ◽  
Prodip Sarker ◽  
Stephen Rimmer
Keyword(s):  
Ring Opening ◽  
Ring Opening Polymerization ◽  
Radical Ring

«Love Rejoices in Truth …»: to the 20th anniversary of the journal «Solovyov Studies»

2021 ◽  
pp. 6-24
Author(s):  
M.V. Maksimov
Keyword(s):  
United States Of America ◽  
Scientific Community ◽  
Geographical Location ◽  
The United States ◽  
Information Support ◽  
The Past ◽  
20Th Anniversary ◽  
Student Projects

This essay presents a description of the scholarly events commemorating the 20th anniversary of the journal “Solovyov Studies”. It gives an overview of the exhibition "20 years of the journal “Solovyov Studies”: 2001–2021," prepared by the editorial board of the journal together with the Library of the ISPU. It highlights a variety of the sections of the exposition and the materials presented, reflecting the development of the journal over two decades, the composition of its editorial board, including authoritative experts from Russia, Bulgaria, Great Britain, Germany, Italy, the Netherlands, Poland, the United States of America, Ukraine, and France. The reader’s attention is drawn to the information about the journal's position in various ratings schemes, both domestic and foreign, and citation indices, the share of publications by foreign authors and their geographical location, as well as the number of journal-views over the past five years. The article shows the role of scientific communications in the development of the journal, Information is given on the participation of the editorial board in international scientific events, on publications devoted to the journal and its presentations in Russian and foreign publications, universities and research centers. The article describes the Solovyov seminar’s cultural and student projects, which received substantial content and information support from “Solovyov Studies”. The level of interest of the scientific community in the journal is also noted.

Passive smoking in the Royal Navy

1994 ◽  
Vol 80 (1) ◽  
pp. 17-21
Author(s):  
L B Cannon
Keyword(s):  
Passive Smoking ◽  
Scientific Community ◽  
Current Evidence ◽  
Royal Navy ◽  
The Past ◽  
Similar Survey ◽  
The Media

AbstractPassive smoking is an emotive issue and one which has received considerable coverage in the past few years from both the scientific community and the media. The arguments for and against links between passive smoking and disease are as fiercely contested among members of the Royal Navy as among civilians. This article aims to present the current evidence in favour of such a link and also the views on the matter as expressed by the ship’s company of a Type 22 frigate. Their views will be compared to the result of a similar survey carried out among civilian workforces. Finally, based on the evidence and results presented, strategies for tackling this problem will be discussed.

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