Environmentally responsible, safe, and chemoselective catalytic hydrogenation of olefins: ppm level Pd catalysis in recyclable water at room temperature
作者:Balaram S. Takale、Ruchita R. Thakore、Eugene S. Gao、Fabrice Gallou、Bruce H. Lipshutz
DOI:10.1039/d0gc02087g
日期:——
Textbook catalytic hydrogenations are typically presented as reactions done in organic solvents and oftentimes under varying pressures of hydrogen using specialized equipment. Catalysts new and old are all used under similar conditions that no longer reflect the times. By definition, such reactions are both environmentally irresponsible and dangerous, especially at industrial scales. We now report
Hydrogenation of plant polyalkoxybenzene derivatives: convenient access to coenzyme Q0 analogues
作者:Alexander E. Varakutin、Egor A. Muravsky、Ilia Yu. Shinkarev、Victor N. Khrustalev、Victor V. Semenov
DOI:10.1016/j.mencom.2020.09.015
日期:2020.9
A technologically advanced protocol has been developed for converting plant allyl(polyalkoxy)benzenes to methyl- and propyl(polyalkoxy)benzenes being intermediates in the syntheses of coenzyme Q0 analogues. The key stage of allyl and benzaldehyde moieties hydrogenation was carried out in a periodical autoclave mode on highly porous ceramic block Pd-catalysts. These catalysts possess large surface area