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Samarium Powder‐Catalyzed Palladium‐Free and Ligand‐Free Sonogashira Coupling Reactions
Author(s) -
Mao Jincheng,
Wu Minyan,
Xie Guanlei,
Ji Shunjun
Publication year - 2009
Publication title -
advanced synthesis and catalysis
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.541
H-Index - 155
eISSN - 1615-4169
pISSN - 1615-4150
DOI - 10.1002/adsc.200900258
Subject(s) - sonogashira coupling , chemistry , palladium , aryl , catalysis , samarium , halide , ligand (biochemistry) , amine gas treating , polyethylene glycol , coupling reaction , combinatorial chemistry , polymer chemistry , organic chemistry , biochemistry , alkyl , receptor
A study of samarium powder‐catalyzed cross‐coupling reactions of aryl halides with terminal alkynes is described. The couplings performed in the polyethylene glycol PEG‐600 provided the corresponding coupling products in good yields. The first example of palladium‐free, copper‐free and amine‐free catalytic system for Sonogashira couplings is presented in the absence of ligand.