Cu(OH)x has been encapsulated over montmorillonite-KSF; air in methanol T=20°C; 1 h; Green chemistry;

triphenyl phosphite; palladium diacetate; caesium carbonate in N,N-dimethyl-formamide T=75°C;

triphenyl phosphite; sodium acetate; palladium diacetate in N,N-dimethyl-formamide T=75°C;

Li(CH2)3CH3; HCl in tetrahydrofuran (under Ar, Schlenk); soln. of ligand in THF cooled to -90°C, Li(CH2)3CH3 added, stirred for 45 min at -65°C, treated with B(OCH3)3, warmed to room temp., stirred overnight, H2O added, acidified by HCl pH 3-5; extd. with Et2O, organic layer washed with brine, H2O, dried, solvent removed, residue refluxed in H2O for 2 h, filtered, filtrate cooled to 0°C for 10 min, filtered, silica column chromy. (pentane-EtOAc 4:1),washed with pentane; elem. anal.;