Crystal Structure of the Isopropylzinc Alkoxide of Pyrimidyl Alkanol: Mechanistic Insights for Asymmetric Autocatalysis with Amplification of Enantiomeric Excess

Publisher: John Wiley & Sons Inc

E-ISSN: 1521-3773|54|50|15218-15221

ISSN: 1433-7851

Source: ANGEWANDTE CHEMIE INTERNATIONAL EDITION, Vol.54, Iss.50, 2015-12, pp. : 15218-15221

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Abstract

AbstractAsymmetric amplification during self‐replication is a key feature that is used to explain the origin of homochirality. Asymmetric autocatalysis of pyrimidyl alkanol in the asymmetric addition of diisopropylzinc to pyrimidine‐5‐carbaldehyde is a unique example of this phenomenon. Crystallization of zinc alkoxides of this 5‐pyrimidyl alkanol and single‐crystal X‐ray diffraction analysis of the alkoxide crystals reveal the existence of tetramer or higher oligomer structures in this asymmetric autocatalytic system.