84553-32-2Relevant articles and documents
Control over C-O and C-C bond formation: ruthenium catalyzed regiospecific addition of carboxylic acid to alkyne and stereoselective dimerization of alkyne
Tripathy, Jyotsna,Bhattacharjee, Manish
supporting information; experimental part, p. 4863 - 4865 (2009/11/30)
A cationic ruthenium(II) complex, [Ru(PPh3)2(CH3CN)3Cl][BPh4] (1), has been found to be an effective catalyst for stereoselective dimerization of alkynes in the presence of a base, and for regiospecific addition of carboxylic acids to alkynes in presence of the Lewis acid, BF3·Et2O.
Synthesis of enol esters and dimerization of terminal alkynes catalyzed by neutral and cationic vinylidene ruthenium complexes
Opstal, Tom,Verpoort, Francis
, p. 314 - 320 (2007/10/03)
In the current study Ru(II) vinylidene complexes of the general type: Cl2Ru{=C=C(H)R}(PR′3)L (R = Ph, SiMe3, R′ = Ph, Cyclohexyl (Cy) and L = phosphine or N-heterocyclic carbene) are synthesized and tested for the addition of carboxylic acids to terminal alkynes. A careful choice of the catalytic system, substrate and carboxylic acid gives access to alk-1-en-2-yl esters, alk-1-en-1-yl esters or enyne dimerization products. Furthermore, an extension was made to synthesize an analogous 14-electron species by treating one of the complexes with AgBF4 and its influence on the catalytic activity and selectivity are investigated.
Ruthenium-catalyzed selective anti-Markovnikov trans addition of carboxylic acids and tail-to-tail dimerization of terminal alkynes
Melis, Karen,Samulkiewicz, Pawel,Rynkowski, Jacek,Verpoort, Francis
, p. 2713 - 2716 (2007/10/03)
Carboxylic acids react with terminal alkynes in the presence of a catalytic amount of RuClx(p-cymene)(triazol-5-ylidene) to selective generate Z-alk-1-en-1-yl esters. The anti-Markovnikov and trans addition on the terminal alkyne gives access t