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Reactions of rac‐ (ebthi)M(η 2 ‐Me 3 SiC 2 SiMe 3 ) (M=Ti, Zr) with Aryl Nitriles
Author(s) -
Becker Lisanne,
Arndt Perdita,
Spannenberg Anke,
Rosenthal Uwe
Publication year - 2014
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.201403538
Subject(s) - nitrile , reactivity (psychology) , alkyne , diimine , aryl , chemistry , metallocene , ethylene , medicinal chemistry , coupling reaction , metallacycle , crystallography , polymer chemistry , stereochemistry , x ray crystallography , organic chemistry , polymerization , catalysis , physics , alkyl , optics , medicine , alternative medicine , polymer , pathology , diffraction
The reactions of the Group 4 metallocene alkyne complexes rac ‐(ebthi)M(η 2 ‐Me 3 SiC 2 SiMe 3 ) ( 1 a : M=Ti, 1 b : M=Zr; rac ‐(ebthi)= rac ‐1,2‐ethylene‐1,1′‐bis(η 5 ‐tetrahydroindenyl)) with PhCN were investigated. For 1 a , an unusual nitrile–nitrile coupling to 1‐titana‐2,5‐diazacyclopenta‐2,4‐diene ( 2 ) at ambient temperature was observed. At higher temperature, the CC coupling of two nitriles resulted in the formation of a dinuclear complex with a four‐membered diimine bridge ( 3 ). The reaction of 1 b with PhCN afforded dinuclear compound 4 and 2,4,6‐triphenyltriazine. Additionally, the reactivity of 1 b towards other nitriles was investigated.