85960-82-3Relevant academic research and scientific papers
Mixed AuPd Nanoparticles as Highly Active Catalysts for Alkyne Z-Semihydrogenation
Wissing, Maren,Niehues, Maximilian,Ravoo, Bart Jan,Studer, Armido
supporting information, p. 3403 - 3409 (2018/07/25)
A method for the preparation of mixed AuPd nanoparticles that are used as catalysts for selective alkyne Z-semihydrogenation is described. It is shown that the corresponding monometallic Pd nanoparticles display a lower activity, documenting the cooperative effect exerted by the two metals. These mixed AuPd nanoalloys are readily prepared by irradiation of the corresponding precursor salts in the presence of photoactive polymers or commercially available photoinitiators as reducing and stabilizing agents. Alkyne semihydrogenation using these catalyst systems with H2 proceeds in high yield (up to 97 % yield of isolated product) and excellent Z-selectivity (up to 99 %). Hydrogenations work on larger scale and the hybrid catalyst can be recovered and reused by simple centrifugation.
REACTION DE WITTIG EN MILIEU HETEROGENE SOLIDE-LIQUIDE : TRANSFORMATION DIRECTE DES ALDEHYDES PHENOLIQUES NATURELS EN ALCENES
Bigot, Yves Le,Delmas, Michel,Gaset, Antoine
, p. 193 - 196 (2007/10/02)
New alkenylphenols can be obtained directly, without protecting the phenol group from the condensation reaction between phenolic aldehydes and various phosphonium salts in the presence of potassium carbonate in protic and aprotic media, using a solid-liquid phase transfer.
