Results 91 to 100 of about 4,618,245 (281)

Cross-metathesis reaction of α- and β-vinyl C-glycosides with alkenes

open access: yesBeilstein Journal of Organic Chemistry, 2015
Cross-metathesis of α- and β-vinyl C-deoxyribosides and α-vinyl C-galactoside with various terminal alkenes under different conditions was studied. The cross-metathesis of the former proceeded with good yields of the corresponding products in ClCH2CH2Cl ...
Ivan Šnajdr   +3 more
doaj   +1 more source

Highly Active Water-Soluble Olefin Metathesis Catalyst [PDF]

open access: yes, 2006
A novel water-soluble ruthenium olefin metathesis catalyst supported by a poly(ethylene glycol) conjugated saturated 1,3-dimesityl-4,5-dihydroimidazol-2-ylidene ligand is reported.
Grubbs, Robert H., Hong, Soon Hyeok
core   +1 more source

Fishing for the right catalyst for the cross-metathesis reaction of methyl oleate with 2-methyl-2-butene

open access: yes, 2017
The activity of various Ru-alkylidene olefin metathesis catalyst types on the outcome of cross-metathesis of methyl oleate with 2-methyl-2-butene was studied.
A. Sytniczuk   +2 more
semanticscholar   +1 more source

Ene–yne cross-metathesis with ruthenium carbene catalysts

open access: yesBeilstein Journal of Organic Chemistry, 2011
Conjugated 1,3-dienes are important building blocks in organic and polymer chemistry. Enyne metathesis is a powerful catalytic reaction to access such structural domains.
Cédric Fischmeister, Christian Bruneau
doaj   +1 more source

Catalyst-Controlled Stereoselective Olefin Metathesis as a Principal Strategy in Multistep Synthesis Design: A Concise Route to (+)-Neopeltolide [PDF]

open access: yes, 2014
Molybdenum-, tungsten-, and ruthenium-based complexes that control the stereochemical outcome of olefin metathesis reactions have been recently introduced. However, the complementary nature of these systems through their combined use in multistep complex
Chakraborty   +64 more
core   +1 more source

Shedding Light on Synthetic Autocatalysis: From Conventional Closed‐Shell Chemistries to Overlooked Open‐Shell Occurrences

open access: yesChemistry – A European Journal, EarlyView.
Why add another catalyst when the product itself holds the power to catalyze its own formation? Autocatalysis in synthetic chemistry enhances reaction efficiency and uncovers novel catalytic behavior across both closed‐shell and open‐shell systems, expanding reactivity and enabling innovative design strategies.
Jaspreet Kaur, Joshua P. Barham
wiley   +1 more source

Bicatalytic Allylation–Cross-Metathesis Reactions as γ-Carbonyl Cation Equivalents [PDF]

open access: yes, 2012
The products corresponding to the reactions of arenes and γ-carbonyl cations may be obtained by a one-pot, bicatalytic process involving InCl3-catalyzed arene allylation and cross metathesis with electron-deficient alkenes. The process is successful with
Dhaliwal, Sugadar   +2 more
core   +3 more sources

Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview

open access: yesChemistry – A European Journal, EarlyView.
The graphical abstract summarizes the review “Pd(II)‐Catalyzed Strategies for the β‐Arylation of α‐Amino Acids: An Overview”, highlighting representative Pd(II)‐catalyzed methods for the β‐arylation of α‐amino acids. Key mechanistic features, substrate diversity, and synthetic relevance of these transformations are showcased. Abstract Metal‐catalyzed C─
Davide Illuminati   +4 more
wiley   +1 more source

Concise Synthesis of Broussonone A

open access: yesMolecules, 2015
A concise and expeditious approach to the total synthesis of broussonone A, a p-quinol natural compound, has been developed. The key features of the synthesis include the Grubbs II catalyst mediated cross metathesis of two aromatic subunits, and a ...
Hyeju Jo   +11 more
doaj   +1 more source

Z-Selective Olefin Metathesis on Peptides: Investigation of Side-Chain Influence, Preorganization, and Guidelines in Substrate Selection [PDF]

open access: yes, 2014
Olefin metathesis has emerged as a promising strategy for modulating the stability and activity of biologically relevant compounds; however, the ability to control olefin geometry in the product remains a challenge.
Grubbs, Robert H.   +2 more
core   +2 more sources

Home - About - Disclaimer - Privacy