Results 31 to 40 of about 117,983 (293)
Ultrasound- and microwave-assisted preparation of lead-free palladium catalysts: effects on the kinetics of diphenylacetylene semi-hydrogenation [PDF]
, 2015 The effect of environmentally benign enabling technologies such as ultrasound and microwaves on the preparation of the lead-free Pd catalyst has been studied.
Bonrath, Werner +6 more
core +1 more source
Beilstein Journal of Organic Chemistry, 2013 A “stop-and-flow” strategy was developed for the chemoselective dioxygenation of alkenes with a PIFA-initiated cyclization. This method is conceived for the desymmetrization of seco-diene, and a series of substituted 5-hydroxymethyl-γ-lactones were ...
Huili Liu +4 more
doaj +1 more source
Difunctionalization of Alkenes and Alkynes via Intermolecular Radical and Nucleophilic Additions
Molecules, 2020 Popular and readily available alkenes and alkynes are good substrates for the preparation of functionalized molecules through radical and/or ionic addition reactions.
Hongjun Yao, Wenfei Hu, Wei Zhang
doaj +1 more source
High quality anti-relaxation coating material for alkali atom vapor cells
, 2009 We present an experimental investigation of alkali atom vapor cells coated with a high quality anti-relaxation coating material based on alkenes. The prepared cells with single compound alkene based coating showed the longest spin relaxation times which ...
Acosta +25 more
core +1 more source
Resistive and rectifying effects of pulling gold atoms at thiol-gold nano-contacts [PDF]
, 2006 We investigate, by means of first-principles calculations, structural and transport properties of junctions made of symmetric dithiolated molecules placed between Au electrodes.
Artacho, Emilio +3 more
core +1 more source
Carbocations and the Complex Flavor and Bouquet of Wine: Mechanistic Aspects of Terpene Biosynthesis in Wine Grapes. [PDF]
, 2015 Computational chemistry approaches for studying the formation of terpenes/terpenoids in wines are presented, using five particular terpenes/terpenoids (1,8-cineole, α-ylangene, botrydial, rotundone, and the wine lactone), volatile compounds (or their ...
Pemberton, Ryan P +2 more
core +2 more sources
Radical-Mediated Trifunctionalization Reactions
MoleculesSynthetic radicals have intrinsic power for cascading and multifunctional reactions to construct diverse molecular scaffolds. In the previous review series, we covered 1,2-difunctionalizations, remote 1,3-, 1,4-, 1,5-, 1,6-, and 1,7-difunctionalizations,
Qiang Zhang +3 more
doaj +1 more source
Recent developments in gold-catalyzed cycloaddition reactions
Beilstein Journal of Organic Chemistry, 2011 In the last years there have been extraordinary advances in the development of gold-catalyzed cycloaddition processes. In this review we will summarize some of the most remarkable examples, and present the mechanistic rational underlying the ...
Fernando López, José L. Mascareñas
doaj +1 more source
, 2014 Citation: 'alkenes' in the IUPAC Compendium of Chemical Terminology, 3rd ed.; International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. 10.1351/goldbook.A00224 • License: The IUPAC Gold Book is licensed under Creative Commons Attribution-ShareAlike CC BY-SA 4.0 International for individual terms. Requests for commercial usage
Robert J. Ouellette, J. David Rawn
+4 more sources
Alkene/Alkyne Chemistry #1 [PDF]
, 2015 A mechanism and a synthesis problem related to alkene and alkyne chemistryTwo problems related to alkene and alkyne ...
Snyder, John K.
core +1 more source