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Chemoselective cross-coupling Suzuki-Miyaura reaction of (Z)-(2-chlorovinyl)tellurides and potassium aryltrifluoroborate salts
(PERGAMON-ELSEVIER SCIENCE LTD, 2008)
An ultrasound-assisted synthesis of functionalized vinylic chlorides is described by palladium-catalyzed cross-coupling reaction of potassium aryltrifluoroborate salts and (Z)-2-chloro vinylic tellurides. This procedure ...
Silica-supported PtSn catalysts obtained through surface organometallic chemistry on metals techniques using a hydrosoluble organotin promoter. Application to the selective hydrogenation of α,β-unsaturated aldehydes and ketones
(Bentham Science Publishers, 2014-03)
In this paper we propose the preparation of a PtSn bimetallic catalyst through techniques derived from Surface Organometallic Chemistry on Metals (SOMC/M) using water as solvent. The system, PtSn0.2ac, was employed in the ...
Phosphorus as a promoter of a nickel catalyst to obtain 1-phenylethanol from chemoselective hydrogenation of acetophenone
(Elsevier, 2019-06)
Two catalysts were prepared using monodisperse pre-synthetized nanoparticles of metallic nickel and nickel phosphides with the same average diameter. Both nanoparticles species were deposited on the same support: mesoporous ...
Chemoselective and Sequential Palladium-Catalyzed Couplings for the Generation of Stilbene Libraries via Immobilized Substrates
(American Chemical Society, 2016-05)
A versatile palladium-catalyzed tandem synthetic sequence to afford E-stilbenes libraries has been developed. Excellent regio- and stereocontrol have been achieved by means of the sequence of Hiyama and Heck cross-couplings. ...
Allylic alcohol synthesis by gas-phase hydrogen transfer reduction of unsaturated ketones
(Elsevier Science, 2005-06)
The gas-phase hydrogen transfer reduction (HTR) of mesityl oxide (MO) with 2-propanol to selectively obtain allylic alcohols was studied on MgO. MO was converted directly to 4-methyl-3-penten-2ol (UOL1) or isomerised to ...
Transition metal-based bimetallic catalysts for the chemoselective hydrogenation of furfuraldehyde
(Sociedade Brasileira de Química, 2010-03-01)
In this work, the liquid-phase chemoselective hydrogenation of furfural was studied, employing Pt, Rh and Ni-based catalysts. Bimetallic systems, containing different amounts of tin, were obtained by means of controlled ...