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Montmorillonite K‐10‐Supported Palladium Nanoparticles for Copper‐Free Acyl Sonogashira Reaction
Author(s) -
Loganathan Roopesh K.,
Ramachandra Sagar N.,
Sureshbabu Vommina V.
Publication year - 2017
Publication title -
chemistryselect
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.437
H-Index - 34
ISSN - 2365-6549
DOI - 10.1002/slct.201701150
Subject(s) - montmorillonite , sonogashira coupling , yield (engineering) , catalysis , palladium , copper , chemistry , nanoparticle , reaction conditions , organic chemistry , nuclear chemistry , polymer chemistry , materials science , nanotechnology , metallurgy
Preparation of palladium nanoparticles supported on montmorillonite K‐10 clay is described. The utility of thus prepared catalyst was examined for copper free acyl Sonogashira reaction of acid chlorides with phenyl acetylenes to achieve various ynone scaffolds. Coumarin derived ynones were also synthesized under mild optimized reaction conditions. All the title compounds were obtained in good to excellent yield. The recycling efficiency of the catalyst was extremely good and used successfully for seven cycles without significant drop in the yield.