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Iridium complexes generated from [Ir(OMe)(COD)](2) and tris[3,5-bis(trifluoromethyl)phenyl]phosphine efficiently catalyzed the ortho-C-H borylation of benzoate esters with bis(pinacolato)diboron in octane at 80 degrees C to produce the corresponding arylboronates in high yields with excellent regioselectivities.
要 旨 我々は古代エジプト王アメンヘテプ 3 世の王墓壁画のデジタル化を行っている．均一な照明を行うために 2 灯のストロボ
The authors have been attempting to digitize murals at the royal tomb of Amenophis III. When photographing the murals, two strobe lights, each of which had an umbrella, were used to provide uniform illumination. Nonetheless, the illumination was still somewhat non-uniform. This non-uniform illumination was corrected by applying an illumination model, which… (More)
Ir(I)-catalyzed C-H borylation of 1-cycloalkenecarboxylic derivatives with bis(pinacolato)diboron affords various alkenylboronates with functional groups in excellent yields. This reaction was also used in a one-pot borylation/Suzuki-Miyaura cross-coupling procedure.
Borylation of the vinylic C--H bond of 1,4-dioxene, 2,3-dihydrofuran, 3,4-dihydro-2H-pyran and their gamma-substituted analogs was carried out in the presence of bis(pinacolato)diboron (B(2)pin(2)) and a catalytic amount of Ir(I)-dtbpy (dtbpy=4,4'-di-tert-butyl-2,2'-bipyridine) complex. The two boron atoms in B(2)pin(2) participated in the coupling, thus… (More)