Results 21 to 30 of about 4,073,254 (239)
Imidazole Backbone Functionalization with Olefin Cross-Metathesis [PDF]
, 2022 A selective and high-rate Ru-catalyzed cross-metathesis reaction of alkenes with vinylimidazole is disclosed. Cross-metathesis is known to operate less efficiently on N-heterocycles, but through optimization by means of statistical experimental design ...
Angelucci, Francesco +5 more
core +1 more source
Natural Product Communications, 2017 Metathesis reactions is firmly established as a valuable synthetic tool in organic chemistry, clearly comparable with the venerable Diels-Alder and Wittig reactions and, more recently, with the metal-catalyzed cross-coupling reactions.
Silvia Roscales, Joaquín Plumet
doaj +1 more source
Cross metathesis of unsaturated epoxides for the synthesis of polyfunctional building blocks
Beilstein Journal of Organic Chemistry, 2015 The cross metathesis of 1,2-epoxy-5-hexene (1) with methyl acrylate and acrylonitrile was investigated as an entry to the synthesis of polyfunctional compounds.
Meriem K. Abderrezak +6 more
doaj +1 more source
Synthesis of Tetrasubstituted Alkenes via Metathesis
Molecules, 2012 Fully substituted olefin generation via metathesis is presented. Catalyst development, optimization of reaction conditions and substrate screening are included.
Seung-Mann Paek
doaj +1 more source
Beilstein Journal of Organic Chemistry, 2019 A novel and efficient approach to the synthesis of 2-vinylbenzylamines is reported. This involves obtaining 2-vinylbenzylamine ligands from tetrahydroisoquinoline by alkylation and reduction followed by the Hofmann cleavage.
Kirill B. Polyanskii +6 more
doaj +1 more source
Química Nova, 2005 The olefin metathesis reaction allows the exchange of complex alkyl units between two olefins, with the formation of a new olefinic link and a sub-product olefin usually ethylene.
Daniel Frederico +2 more
doaj +1 more source
Site‐Specific Protein Bioconjugation Through Cellular Incorporation of Noncanonical Amino Acids
Angewandte Chemie, EarlyView.Genetic code expansion (GCE) enables site‐specific installation of noncanonical amino acids containing bioorthogonal conjugation handles, allowing precise, homogeneous protein modification. This review examines the principles of orthogonal translation, surveys the chemistries available for chemoselective labeling, and highlights emerging multi‐site ...
Rahul Sarkar +2 more
wiley +2 more sources
The allylic chalcogen effect in olefin metathesis
Beilstein Journal of Organic Chemistry, 2010 Olefin metathesis has emerged as a powerful tool in organic synthesis. The activating effect of an allylic hydroxy group in metathesis has been known for more than 10 years, and many organic chemists have taken advantage of this positive influence for ...
Yuya A. Lin, Benjamin G. Davis
doaj +1 more source
Beyond catalyst deactivation: cross-metathesis involving olefins containing N-heteroaromatics
Beilstein Journal of Organic Chemistry, 2015 Alkenes containing N-heteroaromatics are known to be poor partners in cross-metathesis reactions, probably due to catalyst deactivation caused by the presence of a nitrogen atom.
Kevin Lafaye +4 more
doaj +1 more source
Synthesis of Substituted P-Stereogenic Vinylphosphine Oxides by Olefin Cross-Metathesis
, 2016 Substituted vinylphosphine oxides have been prepared in good yield and exclusive (E)-olefin selectivity via olefin cross-metathesis using Grubbs and Hoveyda-type ruthenium catalysts.
K. Michał Pietrusiewicz (1676410) +3 more
core +1 more source