Results 241 to 250 of about 35,734 (288)
Some of the next articles are maybe not open access.
Chemical Reviews, 2021
This Review describes the development of strategies for carbonyl-olefin metathesis reactions relying on stepwise, stoichiometric, or catalytic approaches. A comprehensive overview of currently available methods is provided starting with Paternò-Büchi cycloadditions between carbonyls and alkenes, followed by fragmentation of the resulting oxetanes ...
Ashlee J Davis +2 more
exaly +3 more sources
This Review describes the development of strategies for carbonyl-olefin metathesis reactions relying on stepwise, stoichiometric, or catalytic approaches. A comprehensive overview of currently available methods is provided starting with Paternò-Büchi cycloadditions between carbonyls and alkenes, followed by fragmentation of the resulting oxetanes ...
Ashlee J Davis +2 more
exaly +3 more sources
Chemical Communications, 2005
AbstractFor Abstract see ChemInform Abstract in Full Text.
Fürstner, A., Davies, P.
openaire +3 more sources
AbstractFor Abstract see ChemInform Abstract in Full Text.
Fürstner, A., Davies, P.
openaire +3 more sources
2019
Metathesis is a term used in linguistics to describe a language pattern where a sequence of two sounds occurs in one order in one context and in the opposite order in a related context. For example, a word might have two sounds in one order in its singular form but the opposite order in its plural form; or the relative ordering of two sounds within a ...
Beth Hume, Scott Seyfarth
openaire +1 more source
Metathesis is a term used in linguistics to describe a language pattern where a sequence of two sounds occurs in one order in one context and in the opposite order in a related context. For example, a word might have two sounds in one order in its singular form but the opposite order in its plural form; or the relative ordering of two sounds within a ...
Beth Hume, Scott Seyfarth
openaire +1 more source
Angewandte Chemie International Edition, 2008
AbstractAccording to popular belief, oxygen and water are the natural enemies of organometallic reactions and therefore must be excluded rigorously from the reaction vessel. This belief is founded in the case of the highly reactive nucleophilic metal alkylidene complexes that were used in early catalytic olefin metathesis.
Daniel, Burtscher, Karol, Grela
openaire +2 more sources
AbstractAccording to popular belief, oxygen and water are the natural enemies of organometallic reactions and therefore must be excluded rigorously from the reaction vessel. This belief is founded in the case of the highly reactive nucleophilic metal alkylidene complexes that were used in early catalytic olefin metathesis.
Daniel, Burtscher, Karol, Grela
openaire +2 more sources
ChemInform, 2007
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nicole, Holub, Siegfried, Blechert
openaire +2 more sources
AbstractChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 200 leading journals. To access a ChemInform Abstract, please click on HTML or PDF.
Nicole, Holub, Siegfried, Blechert
openaire +2 more sources
Chemistry – A European Journal, 2019
AbstractIsomerizing olefin metathesis is currently undergoing a transformation from laboratory curiosity to powerful synthetic concept at the heart of orthogonal tandem catalysis. In this process, an isomerization catalyst continuously moves double bonds along carbon chains, while a metathesis catalyst scrambles the residues at the C−C double bonds ...
Jacqueline Pollini +2 more
openaire +2 more sources
AbstractIsomerizing olefin metathesis is currently undergoing a transformation from laboratory curiosity to powerful synthetic concept at the heart of orthogonal tandem catalysis. In this process, an isomerization catalyst continuously moves double bonds along carbon chains, while a metathesis catalyst scrambles the residues at the C−C double bonds ...
Jacqueline Pollini +2 more
openaire +2 more sources
Angewandte Chemie - International Edition, 2013
AbstractThe early years of alkyne metathesis were marked by a somewhat ironic state of affairs: the proposed mechanism was swiftly validated and more than one effective catalyst became available shortly after the discovery of this transformation; surprisingly, however, the impact on synthesis remained very limited for a long period of time.
Alois Furstner
exaly +4 more sources
AbstractThe early years of alkyne metathesis were marked by a somewhat ironic state of affairs: the proposed mechanism was swiftly validated and more than one effective catalyst became available shortly after the discovery of this transformation; surprisingly, however, the impact on synthesis remained very limited for a long period of time.
Alois Furstner
exaly +4 more sources
Journal of the American Chemical Society, 2008
Enyne metathesis reactions on 1,5-enyne substrates are described, using Grubbs−Hoveyda II catalyst and under microwave irradiation: Cyclobutenes have been obtained in low to fair yields (19−58%).
Olivier, Debleds, Jean-Marc, Campagne
openaire +2 more sources
Enyne metathesis reactions on 1,5-enyne substrates are described, using Grubbs−Hoveyda II catalyst and under microwave irradiation: Cyclobutenes have been obtained in low to fair yields (19−58%).
Olivier, Debleds, Jean-Marc, Campagne
openaire +2 more sources