Isothiourea‐Catalyzed Enantioselective Functionalisation of Glycine Schiff Base Aryl Esters via 1,6‐ and 1,4‐Additions

Autor: Lotte Stockhammer, Rebecca Craik, Prof. Dr. Uwe Monkowius, Dr. David B. Cordes, Prof. Dr. Andrew D. Smith, Prof. Dr. Mario Waser

Publikováno v: ChemistryEurope, Vol 1, Iss 1, Pp n/a-n/a (2023)

Abstract The enantioselective α‐functionalisation of glycine Schiff base aryl esters through isothiourea catalysis is successfully demonstrated for 1,6‐additions to para‐quinone methides (21 examples, up to 95 : 5 dr and 96 : 4 er) and 1,4‐

Externí odkaz: https://doaj.org/article/5bf2731dba10453b8253fad4e9827dd3

Synthesis of Both Enantiomers of Chiral Phenylalanine Derivatives Catalyzed by Cinchona Alkaloid Quaternary Ammonium Salts as Asymmetric Phase Transfer Catalysts

Autor: Lei Jin, Shuai Zhao, Xin Chen

Publikováno v: Molecules, Vol 23, Iss 6, p 1421 (2018)

A practical synthesis of both enantiomers of unnatural phenylalanine derivatives by using two pseudoenantiomeric phase transfer catalysts is described. Through asymmetric α-alkylation of glycine Schiff base with substituted benzyl bromides and 1-(br

Externí odkaz: https://doaj.org/article/964cf6803adb4e708e4cf8ac2517e37b

Synthesis of Both Enantiomers of Chiral Phenylalanine Derivatives Catalyzed by Cinchona Alkaloid Quaternary Ammonium Salts as Asymmetric Phase Transfer Catalysts

Autor: Xin Chen, Jin Lei, Zhao Shuai

Publikováno v: Molecules
Volume 23
Issue 6
Molecules : A Journal of Synthetic Chemistry and Natural Product Chemistry
Molecules, Vol 23, Iss 6, p 1421 (2018)

A practical synthesis of both enantiomers of unnatural phenylalanine derivatives by using two pseudoenantiomeric phase transfer catalysts is described. Through asymmetric &alpha
alkylation of glycine Schiff base with substituted benzyl bromides

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5382fcc21e52ae26f435ff42fa15190f

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