New cross-coupling reaction of arylbromide with arylboric acid catalyzed by nano metals

摘要

Synthetic method of compounds 4,4'-bis-(trans-4-alkylcyclohexyl) biphenyl by cross-coupling reaction of arylboric acid and arylbromide in the presence of cetrimonium bromide over nano Ni or Cu catalyst is presented. The reaction is carried out under reflux temperature in THF/H2O for 15 h with yield 60%～65% for nano nickel and 25%～30% for nano copper.