caesium carbonate; trimethylphosphane in ethylene glycol dimethyl ether; toluene to soln. of Cr-complex, Cs2CO3 and boronic acid in DME catalyst (mixt. of Pd2(dba)3 and toluene soln. of PMe3) added, mixt. stirred under refluxfor 16 h; ether added, soln. washed (aq. NaOH, H2O, brine), dried (MgSO4), concd. (vac.), flash column chromy (eluant: 5percent ether-C6H14); detnd. by elem. anal.;

in not given boiling;;

carbon monoxide High Pressure; in autoclave at 270-300°C, 28 atm CO;;