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Synthesis and Structure Characterization of 2‐(Dimethylaminomethyl)pyrrolate and 2,5‐Bis(dimethylaminomethyl)pyrrolate Zirconium Complexes
Author(s) -
Huang JuiHsien,
Kuo PeiCheng,
Lee GeneHsiang,
Peng ShieMing
Publication year - 2000
Publication title -
journal of the chinese chemical society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.329
H-Index - 45
eISSN - 2192-6549
pISSN - 0009-4536
DOI - 10.1002/jccs.200000161
Subject(s) - chemistry , zirconium , agostic interaction , pyrrole , trimethylsilyl , toluene , yield (engineering) , trimethylsilyl chloride , carbon 13 nmr , medicinal chemistry , chloride , polymer chemistry , organic chemistry , catalysis , metal , materials science , metallurgy
Tetrakis(diethylamido)zirconium reacts with 2‐(dimethylamino)methyl pyrrole (DMAMP) and 2,5‐[bis(dimethylamino)methyl]pyrrole (BDMAMP) to give Zr(NEt) 2 (DMAMP) 2 1 and Zr(NEt) 3 (BDMAMP) 2 , respectively. Both 1 and 2 have been characterized by 1 H and 13 C NMR spectroscopies and 1 has also been characterized by X‐ray crystallography. Complex 1 shows an agostic interaction between Zr and H(21A) in solid state that is not sustained in solution. Reacting 1 with 2 equivalents of trimethylsilyl chloride in toluene yields ZrCl 2 (DMAMP) 2 3 in 75% yield which was characterized by 1 H and 13 C NMR spectroscopies.