carbonylchlorohydridetris(triphenylphosphine) ruthenium(II) in toluene T=50°C; 16 h; Inert atmosphere;

1: 4,4,5,5-tetramethyl-1,3,2-dioxaborolan-2-yl-4',4',5',5'-tetramethyl-1,3,2-dioxaborolane With CuCl(C3H4N2(C10H15)2); sodium t-butanolate in tetrahydrofuran T=22°C; 0.5 h; Inert atmosphere; 2: 1-ethynyl-2-methylbenzene With methanol in tetrahydrofuran T=22°C; 12 h; Inert atmosphere; regioselective reaction;

NaOC(CH3)3; CH3OH; [(N,N′-bis[2,6-diisopropylphenyl]imidazolin-2-ylidene)CuCl] in tetrahydrofuran 1.0 molpercent Cu-complex, alkyne, diborane, NaOC(CH3)3, CH3OH, THF, -15°C, 24 h, N2 atm.; 70:30 ratio of isomers;

[RhCl(η2:η2-cycloocta-1,5-diene)]2; triethylamine; tri-cyclo-hexyl-phosphine in tetrahydrofuran T=25°C; 4 h; Inert atmosphere; regioselective reaction;