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A Moisture‐ and Air‐Stable Cationic Ruthenium Complex as Catalyst for Highly Atom‐Economical Stereo‐ and Regioselective Vinylation of Azoles
Author(s) -
Das Uttam Kumar,
Bhattacharjee Manish
Publication year - 2012
Publication title -
chemistry – a european journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.687
H-Index - 242
eISSN - 1521-3765
pISSN - 0947-6539
DOI - 10.1002/chem.201103424
Subject(s) - cationic polymerization , regioselectivity , ruthenium , catalysis , chemistry , moisture , stereoselectivity , medicinal chemistry , combinatorial chemistry , organic chemistry , polymer chemistry
Vinylation of azoles : The cationic Ru II complex, [RuCl(PPh 3 )(dppe)(CH 3 CN) 2 ][BPh 4 ], 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.