Please use this identifier to cite or link to this item: http://hdl.handle.net/10397/8877
Title: Dialkylamino cyclopentadienyl ruthenium(II) complex-catalyzed alpha-alkylation of arylacetonitriles with primary alcohols
Authors: Cheung, HW
Li, J
Zheng, W
Zhou, Z
Chiu, YH
Lin, Z
Lau, CP
Issue Date: 2010
Publisher: Royal Society of Chemistry
Source: Dalton transactions : an international journal of inorganic chemistry, 2010, v. 39, no. 1, p. 265-274 How to cite?
Journal: Dalton transactions : an international journal of inorganic chemistry 
Abstract: Aminocyclopentadienyl ruthenium complexes, [(eta(5)-C(5)H(4)NMe(2))Ru(PPh(3))(2)(CH(3)CN)](+)BF(4)(-) and [(eta(5)-C(5)H(4)NEt(2))Ru(PPh(3))(2)(CH(3)CN)](+)BF(4)(-), are moderately active catalysts for alpha-alkylation of arylacetonitriles with primary alcohols; on the other hand, the analogous unsubstituted cyclopentadienyl ruthenium complex [(eta(5)-C(5)H(5))Ru(PPh(3))(2)(CH(3)CN)](+)BF(4)(-) shows very low catalytic activity. On the basis of experimental results and theoretical calculations, rationalization for the much higher catalytic activity of the aminocyclopentadienyl complexes over that of the unsubstituted Cp complex is provided. In the catalytic systems with the former, it is possible to regenerate the active solvento complexes via protonation of the metal hydride intermediates and subsequent ligand substitution; this process is, however, very nonfacile in the catalytic system with the latter.
URI: http://hdl.handle.net/10397/8877
ISSN: 1477-9226
EISSN: 1477-9234
DOI: 10.1039/b917805h
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