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Formation of N-methylated cyclic ligand systems from unusual reactions between trimethylamine N-oxide and acetylenes on Fe3Te2(CO)(9) and contrast with reactions on Fe3E2(CO)(9) (E = S, Se)

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Title Formation of N-methylated cyclic ligand systems from unusual reactions between trimethylamine N-oxide and acetylenes on Fe3Te2(CO)(9) and contrast with reactions on Fe3E2(CO)(9) (E = S, Se)
 
Creator MATHUR, P
SINGH, AK
MOHANTY, JR
CHATTERJEE, S
MOBIN, SM
 
Subject substituted metal-carbonyls
bis-ferrocenylbutadiyne
tricarbonyl complexes
molybdenum
tungsten
reactivity
clusters
bond
diphosphine
unidentate
 
Description Activation of C-H bonds of N-methyl groups has been achieved on cluster support. Use of a noncoordinating solvent in the reaction of Me3NO center dot 2H2O, acetylenes, and Fe3Te2(CO)(9) leads to activation of N-methyl groups of Me3NO and formation of N,N-dimethyldihydropyrrole (1) and N,M-dimethyl-hexahydropyrimidine (2) ring systems. The NMe3 ligand, resulting from TMNO, is retained on the metal cluster due to the absence of a coordinating solvent and reacts with incoming acetylenes. In contrast, activation of the N-methyl groups Of Me3NO is not observed in the reaction using Fe3S2(CO)(9), which yields complexes with vinylferrocene (3) and 1,4-diferrocenylbuta-1,3-diene-2,3-dithio (4) units attached to Fe2S2(CO)(6). All new compounds have been structurally characterized by single-crystal X-ray diffraction studies.
 
Publisher AMER CHEMICAL SOC
 
Date 2011-07-14T05:33:53Z
2011-12-26T12:48:12Z
2011-12-27T05:46:29Z
2011-07-14T05:33:53Z
2011-12-26T12:48:12Z
2011-12-27T05:46:29Z
2008
 
Type Article
 
Identifier ORGANOMETALLICS, 27(19), 5094-5098
0276-7333
http://dx.doi.org/10.1021/om701290c
http://dspace.library.iitb.ac.in/xmlui/handle/10054/3868
http://hdl.handle.net/10054/3868
 
Language en