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Synthesis and Structures of β‐Diketoiminate Complexes of Magnesium
Author(s) -
Prust Jörg,
Most Kerstin,
Müller Ilka,
Alexopoulos Eftichia,
Stasch Andreas,
Usón Isabel,
Roesky Herbert W.
Publication year - 2001
Publication title -
zeitschrift für anorganische und allgemeine chemie
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.354
H-Index - 66
eISSN - 1521-3749
pISSN - 0044-2313
DOI - 10.1002/1521-3749(200108)627:8<2032::aid-zaac2032>3.0.co;2-6
Subject(s) - chemistry , ring (chemistry) , lithium (medication) , medicinal chemistry , magnesium , stereochemistry , carbon atom , yield (engineering) , crystallography , organic chemistry , materials science , metallurgy , medicine , endocrinology
The reaction of the β‐diketoiminate lithium complex (dipp)NacNacLi · OEt 2 ((dipp)NacNac = 2‐((2,6‐diisopropylphenyl)amino)‐4‐((2,6‐diisopropylphenyl)imino)‐pent‐2‐enyl) with i PrMgCl and MgI 2 yield the corresponding (dipp)NacNacMg i Pr · OEt 2 ( 1 ) and (dipp)NacNacMgI · OEt 2 ( 2 ). The reaction of 2 with NaBH 4 in diethylether gives (dipp)NacNacMg(μ‐H) 3 BH · OEt 2 ( 3 ). The core element of compounds 1 – 3 is a six‐membered ring formed by N(1)–C(1)–C(2)–C(3)–N(2) and magnesium. The structures of 1 and 2 show the β‐diketoiminate backbone in a boat‐conformation with the tetrahedrally coordinated metal center at the prow and the opposing carbon atom at the stern. The magnesium atom in 3 is octahedrally coordinated and out of the β‐diketoiminate plane.