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Electrophilic Amination (electrophilic + amination)

Distribution by Scientific Domains
Chemistry100%

Selected Abstracts

Enantioselective Electrophilic Amination of ,-Cyanothioacetates with Azodicarboxylates Catalyzed by an Axially Chiral Guanidine Base

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 17 2009
Masahiro Terada
Abstract An enantioselective electrophilic amination of ,-substituted cyanothioacetates with azodicarboxylate is demonstrated using an axially chiral guanidine as a chiral Brønsted base catalyst. The corresponding product, having a quaternary stereogenic center at the ,-carbon atom, is formed in excellent enantioselectivity. [source]

ChemInform Abstract: Highly Efficient Catalytic System for Electrophilic Amination of Arylzinc Reagents.

CHEMINFORM, Issue 19 2010
Tahir Daskapan
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]

First Example of Using a Ionic Liquid in Electrophilic Amination of Arenes.

CHEMINFORM, Issue 18 2005
AlCl, Amination of Methylbenzenes with the System NaN
No abstract is available for this article. [source]

Synthesis of ,-Hydrazino Ketones via Regio- and Stereoselective Electrophilic Amination of Manganese Enolates and Enamines.

CHEMINFORM, Issue 15 2005
Gabriella Dessole
Abstract For Abstract see ChemInform Abstract in Full Text. [source]

ChemInform Abstract: InCl3,SiO2 -Catalyzed Electrophilic Amination of Arenes: A Facile and Rapid Synthesis of Aryl Hydrazides.

CHEMINFORM, Issue 8 2002
J. S. Yadav
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]

Enantioselective Electrophilic Amination of ,-Cyanothioacetates with Azodicarboxylates Catalyzed by an Axially Chiral Guanidine Base

ADVANCED SYNTHESIS & CATALYSIS (PREVIOUSLY: JOURNAL FUER PRAKTISCHE CHEMIE), Issue 17 2009
Masahiro Terada
Abstract An enantioselective electrophilic amination of ,-substituted cyanothioacetates with azodicarboxylate is demonstrated using an axially chiral guanidine as a chiral Brønsted base catalyst. The corresponding product, having a quaternary stereogenic center at the ,-carbon atom, is formed in excellent enantioselectivity. [source]

On the mechanism of the N,N -dimethyl amination of Grignard reagents: a kinetic study

JOURNAL OF PHYSICAL ORGANIC CHEMISTRY, Issue 9 2007
Ender Erdik
Abstract A direct kinetic study is reported for the electrophilic amination of substituted phenylmagnesium bromides with N,N -dimethyl O -(mesitylenesulfonyl)hydroxylamine in THF. Rate data, Hammett relationship, and activation entropy are consistent with a SN2 displacement involving the attack of carbanions to sp3N in the amination reagent (AR). Copyright © 2007 John Wiley & Sons, Ltd. [source]

Highly efficient catalytic system for electrophilic amination of arylzinc reagents

APPLIED ORGANOMETALLIC CHEMISTRY, Issue 1 2010
Tahir Da, kapan
Abstract The effect of catalyst on the yield of amine in the amination of three classes of arylzinc reagents with acetone oxime O -tosylate was investigated. Since they allowed the preparation of arylamines in excellent yields in the presence of a minimum amount of copper (I) or copper (II) compounds, the catalytic systems using copper (I) or copper (II) combined with a P-, N- or S-donor ligand were revealed to be the best catalysts for the electrophilic amination of arylzinc reagents with acetone oxime O -tosylate in the presence of DMPU. Copyright © 2009 John Wiley & Sons, Ltd. [source]

Cosolvent-promoted electrophilic amination of organozinc reagents

APPLIED ORGANOMETALLIC CHEMISTRY, Issue 6 2009
Tahir Da, kapan
Abstract In this study, we aimed to develop a simple and efficient method for the electrophilic amination of organozinc reagents. For this reason, 12 cosolvents were screened in the electrophilic amination of ordinary organozinc reagents. By the use of a cosolvent, an easily applicable and high-yielding method for the preparation of arylamines by electrophilic amination of arylzinc reagents was developed. Copyright © 2009 John Wiley & Sons, Ltd. [source]

Reactivity of mixed organozinc and organocopper reagents.

APPLIED ORGANOMETALLIC CHEMISTRY, Issue 6 2009

Abstract Reaction of methyl arylzincs with acetone O -(mesitylenesulfonyl)oxime in THF in the presence of CuCN at room temperature is efficient in selective electrophilic amination of aryl carbanions. This procedure allows for the preparation of arylamines in moderate to good yields and provides an efficient and atom economic alternative to existing amination methods for diarylzincs. Copyright © 2009 John Wiley & Sons, Ltd. [source]