77854-59-2Relevant articles and documents
From bis(Imidazol-2-yl)methanes to asymmetrically substituted bis(heterocyclo)methanides in metal coordination
Dauer, David-R.,Koehne, Ingo,Herbst-Irmer, Regine,Stalke, Dietmar
, p. 1966 - 1978 (2017/12/06)
As an extension to the known symmetric bis(heterocyclmethanes containing two identical heterocycles, new asymmetric ligand systems, based on benzoxazole, benzothiazole and 1-methylbenzimidazole, are presented. Furthermore, the syntheses and reactions of two new symmetrically substituted methane derivatives, containing either 1-methylimidazole or 1-methylbenzimidazole, are discussed. In this context, firstly, (1-MeNCNC2H2)2CH2 and (1-MeNCNC6H4)2CH2, and secondly, (NCSC6H4)CH2(NCOC6H4) and (NCSC6H4)CH2(1-MeNCNC6H4), are used as parent compounds. They can be easily deprotonated at the central methylene bridge to generate a monoanionic structure akin to NacNac, so that the following complexes can be obtained: [Me2Al{(1-MeNCNC2H2)2CH}], [Me2Al{(1-MeNCNC6H4)2-CH}], [Me2Al{(NCSC6H4)CH(NCOC6H4)}], [Me2Ga{(NCSC6H4)CH-(NCOC6H4)}], [Me2Al{(NCSC6H4)CH(1-MeNCNC6H4)}],[(THF)2Li{(1-MeNCNC6H4)2CH}] and [(diox)2Li{(NCSC6H4)CH(1-MeNCNC6H4)}]. These compounds have been fully characterised by single-crystal X-ray diffraction (in the solid statand NMR spectroscopy (in solution).
