โ Scribed by Jochanan Blum; Hedva Rosenman; Ernst D. Bergmann
No coin nor oath required. For personal study only.
Iteoent ehldiee of the catalytic actlvlty of chlorotrqri~lphae~~, RhCl(PPh3)3, have given some unexpeclxd reeulte. It haa been shown in cur laboratory that &la organometallic compound causes decarboqylatlon of various carbonyl compounde and deaulfonylalion of aromatic sulfoqyl chloridee-(I+).
Qually, it ia capable of extracting nitrogen from suitable organic compounda containing the l+N linkage (4).
Rrther examples showing the acUvi@ of this rhodium complex ae4 hydrogenation catalyst are given in
๐ SIMILAR VOLUMES
So far there have been few attempt8 to obtain 8eleCtivity for weneous lqdmgenation of alkyne8 and diene8 tothe intemadiate alkene,lB3 However, there are no reports of ouch reduction of allene8. The pre8entwork concezn6thehomgeneous hydrogenation of some acyclic and cyclic allene8 to the intermedlate
Wilkinson et al. (1,2,3) found chlorotris(triphenylphosphine)rhodium(I) to be an active catalyst in the hydrogenation of olefinic and acetylenic bonds. A mechanism was advanced