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Optically Active Isoprene(tricarbonyl)iron(0) and Methyltrimethylenemethane(tricarbonyl)iron(0)
Author(s) -
Kappes Dag,
Gerlach Hans,
Zbinden Peter,
Dobler Max,
König Wilfried A.,
Krebber Ralph,
Wenz Gerhard
Publication year - 1989
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.198916571
Subject(s) - isoprene , chemistry , enantiomer , optically active , context (archaeology) , ionic liquid , absolute configuration , enantiomeric excess , organic chemistry , medicinal chemistry , enantioselective synthesis , catalysis , copolymer , polymer , paleontology , biology
Ionic hydrogenation of (+)‐1 has for the first time opened the way to the optically active tricarbonyliron(0) complexes (+)‐ 2 and (−)‐ 3 . Their absolute configurations were deduced on the basis of an X‐ray structural analysis of (+)‐ 1 . Enantiomeric purities (88% and 96% ee ) were established by gas chromatographic analysis with a capillary column of perpentylated γ‐cyclodextrin. These complexes are of considerable interest in the context of asymmetric syntheses.