1: 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane With bis(η4-1,5-cyclooctadiene)-di-μ-methoxy-diiridium(I); 4,4'-di-tert-butyl-2,2'-dipyridyl in tert-butyl methyl ether Inert atmosphere; 2: 2,6-dimethylpyridine in tert-butyl methyl ether T=80°C; 0.0833333 h; Inert atmosphereMicrowave irradiation;

(pentamethylcyclopentadienyl)Rh(.eta.4-hexamethylbenzene) T=150°C; 6 h;

copper(ll) bromide in methanol T=80°C;

Cu(NO3)2*3H2O; cesium fluoride in methanol; water T=100°C; 4 h;

copper dichloride in methanol T=90°C;

copper(l) iodide; 1,10-phenanthroline; potassium iodide in methanol; water T=80°C; 1 h; High pressure;