Efficient synthesis of optically active α-quaternary amino acids by highly diastereoselective [2,3]-rearrangement of allylic ammonium ylides

Lewis Acid Promoted Highly Diastereoselective Petasis Borono-Mannich Reaction: Efficient Synthesis of Optically Active β,γ-Unsaturated α-Amino Acids

(2012) Yi Li et al.   ORGANIC LETTERS

1,2-Dimethoxy-4,5-dimethylene: a new protecting group for acyclic amino acid derivatives prepared by Stevens rearrangement

(2012) Eiji Tayama et al.   TETRAHEDRON LETTERS

Diastereo- and enantioselective conjugate addition of α-substituted nitroacetates to maleimides under base-free neutral phase-transfer conditions

(2011) Seiji Shirakawa et al.   CHEMICAL COMMUNICATIONS

Quaternary centres bearing nitrogen (α-tertiary amines) as products of molecular rearrangements

(2011) Jonathan Clayden et al.   CHEMICAL COMMUNICATIONS

Binding of α,α-Disubstituted Amino Acids to Arginase Suggests New Avenues for Inhibitor Design

(2011) Monica Ilies et al.   JOURNAL OF MEDICINAL CHEMISTRY

Asymmetric Synthesis of α-Methyl-α-Amino Acids via Diastereoselective Alkylation of (1S)-(+)-3-Carene Derived Tricyclic Iminolactone

(2011) Ta-Jung Lu et al.   JOURNAL OF ORGANIC CHEMISTRY

Synthetic studies toward labionin, a new α,α-disubstituted amino acid from type III lantibiotic labyrinthopeptin A2

(2011) Georg M. Sambeth et al.   JOURNAL OF PEPTIDE SCIENCE

A Dual-Catalysis Approach to the Asymmetric Steglich Rearrangement and Catalytic Enantioselective Addition ofO-Acylated Azlactones to Isoquinolines

(2011) Chandra Kanta De et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Highly diastereoselective Friedel–Crafts reaction of arenes with N-tert-butanesulfinylimino ester towards the efficient synthesis of α-arylglycines

(2011) Yi Li et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

Highly Diastereoselective Indium-Mediated Allenylation of N-tert-Butanesulfinyl Imino Ester: Efficient Synthesis of Optically Active α-Allenylglycines

(2010) Shen-Shuang Jin et al.   ADVANCED SYNTHESIS & CATALYSIS

Chiral Ammonium Betaines as Ionic Nucleophilic Catalysts

(2010) Daisuke Uraguchi et al.   ANGEWANDTE CHEMIE-INTERNATIONAL EDITION

Dramatic lithium chloride effect on the reaction stereocontrol in Zn-mediated asymmetric cinnamylation: highly practical synthesis of β-aryl homoallylic amines

(2010) Min Liu et al.   CHEMICAL COMMUNICATIONS

Highly diastereoselective Friedel–Crafts reaction of indoles with an N-tert-butanesulfinylimino ester: an efficient and practical approach to enantiomerically enriched α-(3-indolyl)glycines

(2010) Du-Ming Ji et al.   CHEMICAL COMMUNICATIONS

Enantioselective Synthesis of α-Quaternary Amino Acid Derivatives by Sequential Enzymatic Desymmetrization and Curtius Rearrangement of α,α-Disubstituted Malonate Diesters

(2010) Violeta Iosub et al.   JOURNAL OF ORGANIC CHEMISTRY

Nickel-Catalyzed Asymmetric Ullmann Coupling for the Synthesis of Axially Chiral Tetra-ortho-Substituted Biaryl Dials

(2010) Wen-Wen Chen et al.   ORGANIC LETTERS

Memory of Chirality of Tertiary Aromatic Amides: A Simple and Efficient Method for the Enantioselective Synthesis of Quaternary α-Amino Acids

(2009) Mathieu Branca et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Asymmetric Lewis Acid Mediated [1,2]-Rearrangement of Proline-Derived Ammonium Ylides

(2009) Pavel Tuzina et al.   ORGANIC LETTERS

Organocatalytic Asymmetric Synthesis of α,α-Disubstituted α-Amino Acids and Derivatives

(2008) Silvia Cabrera et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

Chiral Ammonium Betaines: A Bifunctional Organic Base Catalyst for Asymmetric Mannich-Type Reaction of α-Nitrocarboxylates

(2008) Daisuke Uraguchi et al.   JOURNAL OF THE AMERICAN CHEMICAL SOCIETY

New synthetic routes to optically active α-quaternary α-aryl amino acid derivatives via the diastereoselective Stevens and Sommelet–Hauser rearrangements

(2008) Eiji Tayama et al.   ORGANIC & BIOMOLECULAR CHEMISTRY

An Efficient and Versatile Approach for Optical Resolution ofC2-Symmetric Axially Chiral Biaryl Dials. Synthesis of Enantiopure Biaryl-Derived Cyclictrans-1,2-Diols

(2008) Chen Zhu et al.   ORGANIC LETTERS

Remarkable Salt Effect on In-Mediated Allylation ofN-tert-Butanesulfinyl Imines in Aqueous Media:  Highly Practical Asymmetric Synthesis of Chiral Homoallylic Amines and Isoindolinones

(2008) Xing-Wen Sun et al.   ORGANIC LETTERS

Enantioselective [1,2]-Stevens Rearrangement Using Sugar-Derived Alkoxides as Chiral Promoters

(2008) Katsuhiko Tomooka et al.   SYNLETT