期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 12, 期 21, 页码 5418-5427出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.200501076
关键词
asymmetric catalysis; hydrogen bonding; organocatalysis; thiourea; urea
Over the last decade the potential for N,N-dialkyl(thio)urea derivatives to serve as active metal-free organocatalysts for a wide range of synthetically useful reactions susceptible to the influence of general acid catalysis has begun to be realised. This article charts the development of these catalysts (with emphasis on the design principles involved), from early proof-of-concept materials to contemporary active chiral (bifunctional) promoters of highly selective asymmetr.c transformations.
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