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Addition of Enolisable Ketones to (dpp‐bian)Mg(THF) 3 [dpp‐bian =1,2‐Bis{(2,6‐diisopropylphenyl)imino}acenaphthene]
Author(s) -
Fedushkin Igor L.,
Skatova Alexandra A.,
Fukin Georgii K.,
Hummert Markus,
Schumann Herbert
Publication year - 2005
Publication title -
european journal of inorganic chemistry
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.667
H-Index - 136
eISSN - 1099-0682
pISSN - 1434-1948
DOI - 10.1002/ejic.200400948
Subject(s) - chemistry , acenaphthene , trigonal bipyramidal molecular geometry , medicinal chemistry , camphor , ligand (biochemistry) , magnesium , ketone , nitrogen , stereochemistry , crystal structure , crystallography , organic chemistry , naphthalene , biochemistry , receptor
The enolates [(dpp‐bian)(H)]Mg[OC(=CHPh)CH 2 Ph](THF) 2 ( 6 ), [(dpp‐bian)(H)]Mg[OC(=CPh 2 )CH 3 ](THF) 2 ( 7 ) and [(dpp‐bian)(H)]Mg(camphor)(py) 2 ( 8 ) were prepared by treating (dpp‐bian)Mg(THF) 3 ( 1 ) with equimolar amounts of dibenzyl ketone, 1,1‐diphenylacetone and camphor, respectively. Single‐crystal X‐ray structure analyses showed these enolates to be five‐coordinate, trigonal bipyramidal magnesium complexes with terminal, nonbridging enolate ligands. In solutions of 6 and 7 the proton, which in the solid‐state is attached to only one of the two nitrogen atoms of the dpp‐bian ligand, is delocalised between both nitrogen atoms. (© Wiley‐VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2005)