| Literature DB >> 25339781 |
Katharina Gratzer1, Mario Waser1.
Abstract
A structurally carefully diversified library of novel TADDOL-derived chiral secondary amines was synthesized and investigated for their applicability to obtain new organocatalysts like chiral Lewis bases and chiral phase-transfer catalysts. The scope and limitations of the developed syntheses routes to access these catalysts as well their catalytic performance in different benchmark reactions were systematically investigated. The most powerful of the catalysts prepared was found to be highly useful for the phase-transfer catalyzed α-alkylation of glycine Schiff base (high yields and up to 93% ee).Entities:
Keywords: Lewis base catalysis; asymmetric alkylation; asymmetric phase-transfer catalysis; chiral pool; tartaric acid
Year: 2012 PMID: 25339781 PMCID: PMC4202115 DOI: 10.1055/s-0032-1316804
Source DB: PubMed Journal: Synthesis (Stuttg) ISSN: 0039-7881 Impact factor: 3.157