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Olefins Catalyzed (olefin + catalyze)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

Addition of the ortho-C,H Bonds of Phenol Across an Olefin Catalyzed by a Chiral Iridium(I) Diphosphine Complex.

CHEMINFORM, Issue 28 2003
Romano Dorta
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Highly Enantioselective Epoxidation of Unfunctionalized Olefins Catalyzed by Chiral Jacobsen's Catalyst Immobilized on Phenoxy-Modified Zirconium Poly(syrene-phenylvinylphos- phonate)phosphate

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 1 2010
Xiaochuan Zou
Abstract Chiral Jacobsen's catalyst was axially immobilized onto phenoxy-modified zirconium poly(styrene-phenylvinylphosphonate)phosphate (ZPS-PVPA). The immobilized catalysts show comparable ee values for asymmetric epoxidation of styrene and much higher ee values for ,-methylstyrene (73.7% vs. 54.0%) and indene (99.9% vs. 65.0%) than the homogeneous Jacobsen's catalyst. Moreover, the as-synthesized catalysts are relatively stable and can be recycled at least five times without significant loss of activity and enantioselectivity. A point worth emphasizing is that the heterogeneous catalysts afforded remarkable increases of conversion and ee values in the absence of expensive O-coordinating axial bases for the asymmetric epoxidation of olefins, especially for the epoxidation of ,-methylstyrene (conversion: from 24.3% to 99.9%; ee: from 29.4% to 73.7%), which may overcome the last obstacle for the potential industry application of chiral Jacobsen's catalyst. [source]

Asymmetric [3+2] Cycloadditions of Allenoates and Dual Activated Olefins Catalyzed by Simple Bifunctional N -Acyl Aminophosphines,

ANGEWANDTE CHEMIE, Issue 26 2010
Hua Xiao
Einfach und difunktionell sind N -Acylaminophosphan-Katalysatoren wie 1 für die ersten asymmetrischen [3+2]-Cycloadditionen zwischen Allenoaten und doppelt aktivierten Olefinen. Die Cycloadditionen ergeben hoch funktionalisierte chirale Cyclopentene mit strikter Regioselektivität sowie guten bis hervorragenden Enantioselektivitäten und Ausbeuten. [source]

Intramolecular Alkynylcyclopropanation of Olefins Catalyzed by Bi(OTf)3: Stereoselective Synthesis of 1-Alkynyl-3-azabicyclo[3.1.0]hexanes,

ANGEWANDTE CHEMIE, Issue 52 2009
Kimihiro Komeyama Dr.
Zwei Ringe auf einen Schlag: 1-Alkinyl-3-azabicyclo[3.1.0]hexane 2 entstanden in guten bis ausgezeichneten Ausbeuten bei der stereoselektiven Bi(OTf)3 -katalysierten dehydratisierenden Alkinylcyclopropanierung der Azaeninole 1, wobei das Propargylalkoholmotiv von 1 als Propargylcarben-Syntheseäquivalent fungierte. [source]

ChemInform Abstract: Generally Applicable and Efficient Oxidative Heck Reaction of Arylboronic Acids with Olefins Catalyzed by Cyclopalladated Ferrocenylimine under Base- and Ligand-Free Conditions.

CHEMINFORM, Issue 24 2010
Yuting Leng
Abstract ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform Abstract of an article which was published elsewhere, please select a "Full Text" option. The original article is trackable via the "References" option. [source]

Lewis Acid Assisted Cross Metathesis of Acrylonitrile with Functionalized Olefins Catalyzed by Phosphine-Free Ruthenium Carbene Complex.

CHEMINFORM, Issue 11 2006
Chen-Xi Bai
Abstract ChemInform 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. [source]

Efficient Aziridination of Olefins Catalyzed by a Unique Disilver(I) Compound.

CHEMINFORM, Issue 20 2004
Yong Cui
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Conjugate Addition of Indoles and Thiols with Electron-Deficient Olefins Catalyzed by Bi(OTf)3.

CHEMINFORM, Issue 40 2003
M. Mujahid Alam
No abstract is available for this article. [source]

Epoxidation of Olefins Catalyzed by Manganese(III) Porphyrin in a Room Temperature Ionic Liquid.

CHEMINFORM, Issue 22 2003
Zhen Li
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Asymmetric Hydrogenation of Aromatic Olefins Catalyzed by Iridium Complexes of Proline-Derived Phosphine,Oxazoline Ligands.

CHEMINFORM, Issue 18 2003
Guopin Xu
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

Highly Stereoselective Ring-Opening Addition of Terminal Acetylenes to Bicyclic Olefins Catalyzed by Nickel Complexes.

CHEMINFORM, Issue 40 2002
Dinesh Kumar Rayabarapu
No abstract is available for this article. [source]