33745-47-0Relevant articles and documents
Cobalt(ii)-catalyzed benzylic oxidations with potassium persulfate in TFA/TFAA
Li, Tianlei,Li, Jishun,Zhu, Zihao,Pan, Weidong,Wu, Song
, p. 20879 - 20883 (2019/07/12)
A cobalt-catalyzed C(sp3)-H oxygenation reaction to furnish aldehyde was herein reported. This transformation demonstrated high chemo-selectivity, and tolerated various methylarenes bearing electron-withdrawing substituents. This reaction provided rapid access to diverse aldehydes form methylarenes. Notably, TFA/TFAA was used for the first time as a mixed solvent in cobalt-catalyzed oxygenation of benzylic methylenes.
Development of a Rhodium(II)-Catalyzed Chemoselective C(sp3)-H Oxygenation
Lin, Yun,Zhu, Lei,Lan, Yu,Rao, Yu
supporting information, p. 14937 - 14942 (2015/10/19)
We report the first example of RhII-catalyzed chemoselective double C(sp3)-H oxygenation, which can directly transform various toluene derivatives into highly valuable aromatic aldehydes with great chemoselectivity and practicality. The critical combination of catalyst Rh(OAc)2, oxidant Selectfluor, and solvents of TFA/TFAA promises the successful delivery of the oxidation with satisfactory yields. A possible mechanism involving a unique carbene-Rh complex is proposed, and has been supported by both experiments and theoretical calculations.
Cobalt carbonyl as an effective CO source in one-pot synthesis of esters from aryl halides
Baburajan,Senthilkumaran,Elango, Kuppanagounder P.
, p. 3050 - 3056 (2013/10/01)
For the first time, we have successfully applied Co2(CO) 8 as an effective carbonyl source for the Pd catalysed alkoxycarbonylation of aryl halides affording the corresponding aryl esters under mild microwave conditions. A wide variety of esters and carbonyl derivatives were prepared using this protocol.
