Asymmetric enamine catalysis

S Mukherjee, JW Yang, S Hoffmann, B List - Chemical Reviews, 2007 - ACS Publications
The catalysis by primary and secondary amines of electrophilic substitution reactions in the
R-position of carbonyl compounds and related reactions via enamine intermediates is called …

Asymmetric multicomponent reactions (AMCRs): the new frontier

DJ Ramón, M Yus - Angewandte Chemie International Edition, 2005 - Wiley Online Library
Asymmetric multicomponent reactions involve the preparation of chiral compounds by the
reaction of three or more reagents added simultaneously. This kind of addition and reaction …

Organocatalytic asymmetric assembly reactions: synthesis of spirooxindoles via organocascade strategies

D Cheng, Y Ishihara, B Tan, CF Barbas III - Acs Catalysis, 2014 - ACS Publications
Spirooxindoles have become a privileged skeleton given their broad and promising
activities in various therapeutic areas. The strategies and catalyst systems described here …

Lewis base catalysis in organic synthesis

SE Denmark, GL Beutner - Angewandte Chemie International …, 2008 - Wiley Online Library
Abstract The legacy of Gilbert Newton Lewis (1875–1946) pervades the lexicon of chemical
bonding and reactivity. The power of his concept of donor–acceptor bonding is evident in the …

Asymmetric organocatalytic domino reactions

D Enders, C Grondal, MRM Hüttl - … Chemie International Edition, 2007 - Wiley Online Library
The current status of organic synthesis is hampered by costly protecting‐group strategies
and lengthy purification procedures after each synthetic step. To circumvent these problems …

Enamine-based organocatalysis with proline and diamines: the development of direct catalytic asymmetric aldol, Mannich, Michael, and Diels− Alder reactions

W Notz, F Tanaka, CF Barbas - Accounts of chemical research, 2004 - ACS Publications
Enamines and imines have long been recognized as key intermediates in enzyme catalysis,
particularly within a class of enzymes organic chemists would very much like to emulate, the …

Core-structure-motivated design of a phosphine-catalyzed [3+ 2] cycloaddition reaction: enantioselective syntheses of spirocyclopenteneoxindoles

B Tan, NR Candeias, CF Barbas III - Journal of the American …, 2011 - ACS Publications
A novel organocatalytic asymmetric [3+ 2] cycloaddition reaction between
methyleneindolinones and allylic compounds yielding complex spirocyclopentaneoxindoles …

Organocatalysis: asymmetric cascade reactions catalysed by chiral secondary amines

X Yu, W Wang - Organic & biomolecular chemistry, 2008 - pubs.rsc.org
The utilisation of chiral secondary amines as promoters for asymmetric cascade reactions
has been subject of intensive research in asymmetric organocatalysis in the past few years …

Multicomponent and sequential organocatalytic reactions: diversity with atom-economy and enantiocontrol

CM Marson - Chemical Society Reviews, 2012 - pubs.rsc.org
Reactions in which several components are combined in sequence, and without isolation of
intermediates, are greatly sought because of the inherent molecular diversity, efficiency, and …

Asymmetrische organokatalytische Dominoreaktionen

D Enders, C Grondal, MRM Hüttl - Angewandte Chemie, 2007 - Wiley Online Library
Der derzeitige Stand der organischen Synthese macht oft kostspielige
Schutzgruppenstrategien und aufwändige Reinigungsschritte nach jeder Synthesestufe …