Big Chemical Encyclopedia

Chemical substances, components, reactions, process design ...

Articles Figures Tables About

Organozinc reagents copper-catalyzed reactions

Copper-catalyzed Enantioselective Conjugate Addition Reactions of Organozinc Reagents... [Pg.224]

Feringa, B. L. Naasz, R. Imbos, R. Arnold, L. A. Copper-catalyzed Enantioselective Conjugate Addition Reactions of Organozinc Reagents. In Modem Organocopper Chemistry Krause, N. Ed. Wiley-VCH GmbH Weinheim, 2002 Chapter 7, pp 224—258. [Pg.399]

I 7 Copper-catalyzed Enantioselective Conjugate Addition Reactions of Organozinc Reagents Tab. 7.4. Conjugate additions to 2,5-cyclohexadienone monoacetals and ethers. [Pg.248]

Quite recently, there has been significant expansion and development in the alkylation of imines with organozinc reagents using chiral Lewis acid catalysts. In 2000, Tomioka and co-workers reported a copper(II)-chiral amidophos-phine 4-catalyzed asymmetric process for the addition of diethylzinc to N-sul-fonylimines (Scheme 2) [8]. Excellent enantioselectivities (90-94%) and yields (83-99%) were obtained in reactions of N-sulfonylimines derived from arylal-dehydes. [Pg.108]

The copper-catalyzed conjugate addition reaction of organozinc reagents has reached a prominent level of success by the development of sophisticated chiral phosphorus ligands. Nickel catalysts have also been surveyed by several groups. [Pg.126]


See other pages where Organozinc reagents copper-catalyzed reactions is mentioned: [Pg.134]    [Pg.134]    [Pg.55]    [Pg.130]    [Pg.134]    [Pg.221]    [Pg.84]    [Pg.1329]    [Pg.312]    [Pg.390]    [Pg.129]    [Pg.129]    [Pg.27]   
See also in sourсe #XX -- [ Pg.3 , Pg.221 ]

See also in sourсe #XX -- [ Pg.3 , Pg.221 ]




SEARCH



Copper organozinc reagents

Copper-catalyzed Enantioselective Conjugate Addition Reactions of Organozinc Reagents

Copper-catalyzed reactions

Organozinc

Organozinc reagents

Organozinc reagents copper-catalyzed cross-coupling reactions

Organozinc reagents reactions

Organozincates

Organozincates reactions

Organozincs

Organozincs reagents

© 2024 chempedia.info