The use of two novel chelating nitrogen ligands of the bis(azaheteroaryl)methane type is reported. Two complexes were synthesized: [Rh(CO)2(BBOM)] and [Pd(HBBOM)2](NO3)2 (HBBOM = bis(2-benzoxazolyl)methane), the first of which was completely characterized by X-ray crystallography. The dimethylated compound α,α-dimethyl-bis(2-benzothiazolyl)methane was also synthesized by an original procedure and used as a promoter in the [Ru3(CO)12]-catalyzed reduction of nitrobenzene to aniline. It gave much better conversions and selectivities with respect to the non-methylated HBBOM, probably due to the fact that the latter can be deprotonated when coordinated to the metal.

New chelating nitrogen ligands and their application to the catalytic reduction of nitrobenzene to aniline. X-ray structure of [Rh(CO)2(BBOM)] (HBBOM = bis(2-benzoxazolyl)methane) / F. Ragaini, M. Pizzotti, S. Cenini, A. Abbotto, G. A. Pagani, F. Demartin. - In: JOURNAL OF ORGANOMETALLIC CHEMISTRY. - ISSN 0022-328X. - 489:1-2(1995), pp. 107-112.

New chelating nitrogen ligands and their application to the catalytic reduction of nitrobenzene to aniline. X-ray structure of [Rh(CO)2(BBOM)] (HBBOM = bis(2-benzoxazolyl)methane)

F. Ragaini;M. Pizzotti;S. Cenini;F. Demartin
1995

Abstract

The use of two novel chelating nitrogen ligands of the bis(azaheteroaryl)methane type is reported. Two complexes were synthesized: [Rh(CO)2(BBOM)] and [Pd(HBBOM)2](NO3)2 (HBBOM = bis(2-benzoxazolyl)methane), the first of which was completely characterized by X-ray crystallography. The dimethylated compound α,α-dimethyl-bis(2-benzothiazolyl)methane was also synthesized by an original procedure and used as a promoter in the [Ru3(CO)12]-catalyzed reduction of nitrobenzene to aniline. It gave much better conversions and selectivities with respect to the non-methylated HBBOM, probably due to the fact that the latter can be deprotonated when coordinated to the metal.
Settore CHIM/03 - Chimica Generale e Inorganica
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Utilizza questo identificativo per citare o creare un link a questo documento: http://hdl.handle.net/2434/181509
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