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A Study of (Binap)(enyne)tetracarbonyldicobalt(0) Complexes
Author(s) -
Gibson Susan E.,
Hardick David J.,
Haycock Peter R.,
Kaufmann Karina A. C.,
Miyazaki Ayako,
Tozer Matthew J.,
White Andrew J. P.
Publication year - 2007
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.200700587
Subject(s) - enyne , binap , alkyne , alkene , chemistry , reactivity (psychology) , nuclear magnetic resonance spectroscopy , spectroscopy , stereochemistry , organic chemistry , catalysis , physics , enantioselective synthesis , medicine , alternative medicine , pathology , quantum mechanics
Abstract Four (binap)(enyne)tetracarbonyldicobalt(0) complexes have been synthesised and their reactivity monitored by variable temperature 31 P NMR spectroscopy. Formation of (binap)dicarbonylhydridocobalt(−1) 12 occurred at temperatures between 35 and 55 °C, depending on the nature of the alkene and alkyne components of the enyne. The structure of 12 was determined by X‐ray crystallography, and its presence under Pauson–Khand reaction conditions was verified by NMR spectroscopy.