Sulfones: new reagents in organocatalysis
The development of new asymmetric methodologies that afford different structures in an
enantioselective fashion is one of the most exciting goals for chemists nowadays. In this …
enantioselective fashion is one of the most exciting goals for chemists nowadays. In this …
Cinchona alkaloids in asymmetric organocatalysis
T Marcelli, H Hiemstra - Synthesis, 2010 - thieme-connect.com
This article reviews the applications of cinchona alkaloids as asymmetric catalysts. In the last
few years, characterized by the resurgence of interest in asymmetric organocatalysis …
few years, characterized by the resurgence of interest in asymmetric organocatalysis …
[PDF][PDF] Highly Enantioselective [3+ 2] Annulation of Morita–Baylis–Hillman Adducts Mediated by L‐Threonine‐Derived Phosphines: Synthesis of 3‐Spirocyclopentene …
Spirocyclic oxindoles [1] are the structural motifs frequently found in many natural products
and biologically active molecules.[2] Among many spirooxindole cores, the 3, 3'-pyrrolidinyl …
and biologically active molecules.[2] Among many spirooxindole cores, the 3, 3'-pyrrolidinyl …
Enantioselective [3+ 2] cycloaddition of allenes to acrylates catalyzed by dipeptide-derived phosphines: facile creation of functionalized cyclopentenes containing …
A new family of dipeptide-based chiral phosphines was designed and prepared. d-Thr-l-tert-
Leu-derived catalyst 4c promoted [3+ 2] cycloaddition of allenoates to α-substituted acrylates …
Leu-derived catalyst 4c promoted [3+ 2] cycloaddition of allenoates to α-substituted acrylates …
Asymmetric organocatalysis with sulfones
M Nielsen, CB Jacobsen, N Holub… - Angewandte Chemie …, 2010 - Wiley Online Library
Asymmetric organocatalysis has become a powerful tool for the synthesis of optically active
compounds. Whereas early research mainly focused on combining simple reagents as a …
compounds. Whereas early research mainly focused on combining simple reagents as a …
A direct metal-free decarboxylative sulfono functionalization (DSF) of cinnamic acids to α, β-unsaturated phenyl sulfones
A metal-free room temperature decarboxylative cross-coupling between cinnamic acids and
arylsulfonyl hydrazides has been realized for the first time for the synthesis of (E)-vinyl …
arylsulfonyl hydrazides has been realized for the first time for the synthesis of (E)-vinyl …
Reactions of allylmagnesium reagents with carbonyl compounds and compounds with C═ N double bonds: their diastereoselectivities generally cannot be analyzed …
This review describes the additions of allylmagnesium reagents to carbonyl compounds and
to imines, focusing on the differences in reactivity between allylmagnesium halides and …
to imines, focusing on the differences in reactivity between allylmagnesium halides and …
Novel amino acid based bifunctional chiral phosphines
As a significant complement to amino catalysts, phosphines are versatile Lewis base
catalysts capable of promoting a wide range of diverse organic transformations. In particular …
catalysts capable of promoting a wide range of diverse organic transformations. In particular …
Recent advances in asymmetric catalysis with cinchona alkaloid-based primary amines
L Jiang, YC Chen - Catalysis Science & Technology, 2011 - pubs.rsc.org
Six years have passed since renewed attention was paid to primary amines as potential
organocatalysts in 2004. Numerous high quality studies in this field have provided chemists …
organocatalysts in 2004. Numerous high quality studies in this field have provided chemists …
Stereocontrolled Creation of All‐Carbon Quaternary Stereocenters by Organocatalytic Conjugate Addition of Oxindoles to Vinyl Sulfone
Multifunktionelle Thioharnstoffkatalysatoren mit natürlichen Aminosäuren als Bestandteil
(wie die abgebildete trifunktionelle Verbindung) sind sehr effizient für die asymmetrische …
(wie die abgebildete trifunktionelle Verbindung) sind sehr effizient für die asymmetrische …