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Organocatalysed asymmetric Mannich reactions.

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TLDR
This tutorial review provides an overview of the recent history of the asymmetric organocatalysed Mannich reaction, including scope and limitations, and application of different catalyst systems.
Abstract
The asymmetric Mannich reaction ranks among the most potent enantioselective and diastereoselective C–C-bond forming reactions. In recent years, organocatalysed versions of asymmetric Mannich processes have been increasingly reported and used in a rapidly growing number of applications. This tutorial review provides an overview of the recent history of the asymmetric organocatalysed Mannich reaction, including scope and limitations, and application of different catalyst systems.

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Journal ArticleDOI

Amino Acid‐Catalyzed Asymmetric Carbohydrate Formation: Organocatalytic One‐Step De Novo Synthesis of Keto and Amino Sugars

TL;DR: In this paper, a direct de novo synthesis of ketoses and amino sugars by amino acid-catalyzed asymmetric aldol, Mannich and Michael reactions with dihydroxyacetone phosphate mimics as donors is presented.
Journal ArticleDOI

Conformational lock in a Brønsted acid–Lewis base organocatalyst for the aza-Morita–Baylis–Hillman reaction

TL;DR: BINOL as discussed by the authors is an efficient asymmetric bifunctional organocatalyst for the aza-MBH reaction with high enantiocontrol and has been shown to cooperate in substrate activation.
Journal ArticleDOI

Organocatalytic enantioselective total synthesis of (-)-arboricine.

TL;DR: The tetracyclic indole alkaloid (-)-arboricine has been prepared using an asymmetric organocatalytic Pictet-Spengler reaction as the key step followed by a diastereoselective Pd-catalyzed iodoalkene/enolate cyclization.
Journal ArticleDOI

Catalytic Asymmetric Mannich Reactions of Sulfonylacetates

TL;DR: The possibility of using phase-transfer catalysis (PTC) for the mild deprotonation of arylsulfonylacetates 1 with the aim of exploring their enantioselective Mannich addition to highly reactive N-carbamoyl imines generated in situ from a-amidosulfones 2 is considered.
Journal ArticleDOI

Organocatalytic Highly Enantio- and Diastereoselective Mannich Reaction of β-Ketoesters with N-Boc-aldimines

TL;DR: The catalytic enantioselective Mannich reaction promoted by chiral bifunctional organocatalysts is described and the treatment of beta-ketoesters with N-Boc-aldimines under mild reaction conditions afforded the corresponding beta-amino beta-kesters with excellent diastereoselectivities.
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