Binaphthyl-Derived Mono-, Bi- and Multi-Functional Lewis and Brønsted Base Organocatalysts: A New Vista for Asymmetric Synthesis
2011; Bentham Science Publishers; Volume: 15; Issue: 13 Linguagem: Inglês
10.2174/138527211796150750
ISSN1875-5348
AutoresMatthias Freund, Sebastian Schenker, Alexandru Zamfir, Svetlana B. Tsogoeva,
Tópico(s)Asymmetric Synthesis and Catalysis
ResumoLewis and Bronsted base catalysis are rapidly growing areas in organocatalysis. Numerous binaphthyl-derived chiral base catalysts has been developed over the last years. Recent progress in the chiral Lewis and Bronsted base catalysis has been reviewed with a focus being placed on mono-functional catalysts, including primary and secondary diamines, guanidines, phosphines and phosphineoxides; bi- and multifunctional catalysts, covering secondary and/or tertiary amine and phosphine derivatives assisted with urea/thiourea hydrogen bond donors or Lewis/ Bronsted acids. Keywords: Asymmetric organocatalysis, bi-/multi-functional catalysis, binaphthyl-derived organocatalysts, Bronsted bases, Lewis bases, urea/thioureas, Primary Diamines, Guanidine Derivatives, Secondary Diamines, Chiral Phosphineoxides, Alcohol-Assisted Tertiary Amines, B- OR LI-BINOL COMPLEXES, phase transfer catalysts (PTC), tetramethylguanidine (TMG), chemoselective
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