Recent Developments in the Stereoselective Synthesis of ??-Amino Acids

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a Chem...

RO Duthaler - 《Tetrahedron》

Efficient catalytic asymmetric alkylations. 1. Enantioselective synthesis of (+)-indacrinone via chiral phase-transfer catalysis

efficient catalytic asymmetric alkylations. 1. enantioselective synthesis of (+)-indacrinone via chiral phase-transfer catalysis-高效催化不对称烷基化反应.通过手的相转移催化indacrinone - 的(+)1.不对称合成-知来论文发表中心

UH Dolling，P Davis，EJJ Grabowski - 《Journal of the American Chemical Society》

ChemInform Abstract: Self-Regeneration of Stereocenters (SRS) - Applications, Limitations, and Abandonment of a Synthetic Principle

ChemInform is a weekly ing Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a ChemInform ...

D.，SEEBACH，A.，... - 《Cheminform》

Design of N-spiro C2-symmetric chiral quaternary ammonium bromides as novel chiral phase-transfer catalysts: synthesis and application to practical asymmet...

A series of C(2)-symmetric chiral quaternary ammonium bromides 10 and 11 have been designed as a new, purely synthetic chiral phase-transfer catalyst, and ...

T Ooi，M Kameda，K Maruoka - 《Journal of the American Chemical Society》

Advantage of Anaerobic Conditions in the Highly Enantioselective Synthesis of α,α-Dialkyl-α-Amino Acids by Chiral Phase-Transfer Catalysis

Intervention of the enolate oxidation in the catalytic asymmetric phase-transfer alkylation of protected 伪-amino acid derivatives under aerobic conditions...

T Ooi，M Takeuchi，D Ohara，... - 《Cheminform》

Enantioselective synthesis of non-proteinogenic amino acids via metallated bis-lactim ethers of 2,5-diketopiperazines

Abstract Without Abstract

U Schöllkopf - Springer Berlin Heidelberg

Conformationally Flexible, Chiral Quaternary Ammonium Bromides for Asymmetric Phase‐Transfer Catalysis

A simple yet powerful strategy for the molecular design of chiral phase‐transfer catalysts: Conformationally flexible, N‐spiro chiral quaternary ammonium...

T Ooi，Y Uematsu，M Kameda，... - 《Angewandte Chemie》

Highly enantioselective Michael reactions catalyzed by a chiral quaternary ammonium salt. Illustration by asymmetric syntheses of (S)-ornithine and chiral ...

ChemInform is a weekly Abstracting Service, delivering concise information at a glance that was extracted from about 100 leading journals. To access a Chem...

FY Zhang，EJ Corey - 《Cheminform》

Synthesis and application of dimeric Cinchonaalkaloid phase-transfer catalysts:α,α′-bis[O(9)-allylcinchonidinium]-o,m, or p-xylene dibromide

A dimeric Cinchona alkaloid ammonium salt, α,α′-bis[O(9)-allylcinchonidinium]-m-x ylene dibromide 4, has been developed as a new efficient phase-transfer catalyst; the catalytic enantioselective alkylation of N-(diphenylmethylene)...

Sang-sup Jew，Byeong-Seon Jeong，Mi-Sook Yoo，... - 《Chemical Communications》

Design of N-Spiro C[sub 2]-Symmetric Chiral Quaternary Ammonium Bromides as Novel Chiral Phase-Transfer Catalysts: Synthesis and Application to Practical A...

A series of C[sub 2]-symmetric chiral quaternary ammonium bromides 10 and 11 have been designed as a new, purely synthetic chiral phase-transfer catalyst, ...

Ooi，Takashi，Kameda，... - 《Journal of the American Chemical Society》