1380345-24-3Relevant academic research and scientific papers
Structure-selectivity relationship in ruthenium-catalyzed regio- and stereoselective addition of alkynes to pyrazoles: An experimental and theoretical investigation
Das, Uttam Kumar,Mandal, Subhajit,Anoop, Anakuthil,Bhattacharjee, Manish
, p. 9979 - 9991 (2015/02/19)
Ruthenium(II) complexes, [Ru(dppe)(PPh3)(CH3CN)2Cl][BPh4] {dppe = diphenylphosphinoethane} (1) and [Ru(dppp)2(CH3CN)Cl][BPh4] (2) {dppp = diphenylphosphinopropane}, are efficient catalysts for vinylation of pyrazoles by alkynes. While the 1-catalyzed reaction is trans-selective, the corresponding 2-catalyzed reaction is cis-selective. The experimental results have been rationalized by density functional theory calculations.
A moisture- and air-stable cationic ruthenium complex as catalyst for highly atom-economical stereo- and regioselective vinylation of azoles
Das, Uttam Kumar,Bhattacharjee, Manish
supporting information; experimental part, p. 5180 - 5183 (2012/05/21)
Vinylation of azoles: The cationic RuII complex, [RuCl(PPh 3)(dppe)(CH3CN)2][BPh4], is an efficient catalyst for regio- and stereoselective vinylation of azoles by alkynes (dppe=diphenylphosphinoethane; see scheme). Only 0.5 mol % of the complex is required and the reactions do not require stringent exclusion of moisture and air.
