Pd‐Colloids‐Catalyzed/Ag
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O‐Oxidized General and Selective Esterification of Benzylic Alcohols
作者:Vaibhav Sable、Jagrut Shah、Anuja Sharma、Anant R. Kapdi
DOI:10.1002/asia.201900566
日期:2019.8
Palladium colloids obtained from the degradation of Hermann–Beller palladacycle proved to be an efficient catalytic system in combination with silver oxide as a selective oxidant for the oxidative esterification of differently substituted benzyl alcohols in MeOH as solvent. Excellent reactivity exhibited by the catalytic system also allowed the alcoholic coupling partner to be changed from MeOH to
Palladium-Catalyzed Silane/Siloxane Reductions in the One-Pot Conversion of Nitro Compounds into Their Amines, Hydroxylamines, Amides, Sulfonamides, and Carbamates
作者:Robert Maleczka、Ronald Rahaim
DOI:10.1055/s-2006-950231
日期:——
A combination of palladium(II) acetate, aqueous potassi- um fluoride, and polymethylhydrosiloxane (PMHS) facilitates the room-temperature reduction of aromatic nitro compounds to anilines. These reactions tend to be quick (30 min), high-yielding, and tolerate a range of other functional groups. Replacement of PMHS/KF with triethylsilane allows for the reduction of aliphatic nitro compounds to their