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4145138 
Journal Article 
The versatility of molecular ruthenium catalyst RuCl(COD)(C5Me5) 
Derien, S; Dixneuf, PH 
2004 
Yes 
Journal of Organometallic Chemistry
ISSN: 0022-328X
EISSN: 1872-8561 
Elsevier 
LAUSANNE 
689 
8 
1382-1392 
English 
WOS:000221006100011 
This review reports the contribution of the catalyst precursor RuCl(COD)C5Me5, and of the Rennes team. for the selective transformation of alkynes to generate high value chemicals with atom economy reactions. Ruthenium activation processes are discussed. Are successively presented (i) the cross-oxidative coupling of alkyne and allyl alcohol to generate gamma,delta-unsaturated aldehydes, (ii) the head-to-head dimerisation of alkynes in the presence of carboxylic acids. via a mixed Fischer-Schrock type biscarbene-ruthenium complex, to give functional dienes, and that of propargyl alcohols. via cyclobutadienyl-ruthenium intermediate, to produce cyclobutene derivatives, (iii) the addition of diazoalkanes to alkynes leading to functional dienes via double carbene addition and (iv) the reaction of diazoalkanes to enynes leading to new bicyclo[3.1.0]hexane compounds. Most of the above catalytic reactions involve carbene-ruthenium catalytic species of type Cp*(Cl)Ru(biscarbene) or Cp*(Cl)Ru=CHR. (C) 2003 Elsevier B.V. All rights reserved. 
ruthenium catalysts; RuCl(COD)C5Me5 in catalysis; alkynes; biscarbene-ruthenium; alkylidene-ruthenium; diazoalkanes; atom economy reactions 
International-Council-on-Main-Group-Chemistry Award Symposium 
New York, NY