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: 2,5-dimethylylfuran in tert-butyl methyl ether T=80°C; 0.0333333 h; Inert atmosphereMicrowave irradiation;