Cobalt-catalyzed annulation of styrenes with α-bromoacetic acids
We report a method for addition of α-bromophenylacetic acids to vinyl C-C bonds in styrenes to afford γ-lactones. Reactions employed a simple cobalt catalyst Co(NO3)2·6H2O in the presence of dipivaloylmethane (dpm) ligand.
Nguyen, Tung T.,Ngo, Bao H. T.,Le, Huy X.,Vu, Linh N. P.,To, Tuong A.,Phan, Anh N. Q.,Phan, Nam T. S.
Dynamic kinetic resolution of bis-aryl succinic anhydrides: Enantioselective synthesis of densely functionalised γ-butyrolactones
The efficient Dynamic Kinetic Resolution (DKR) of disubstituted anhydrides has been shown to be possible for the first time. Using an ad hoc designed organocatalyst and an enantio- and diastereoselective cycloaddition process with aldehydes, stereochemically complex γ-butyrolactone derivatives can be obtained-with control over three contiguous stereocentres, one of which is all carbon quaternary.
Claveau, Romain,Twamley, Brendan,Connon, Stephen J.
p. 3231 - 3234
(2018/04/05)
Stereoarrayed 2,3-Disubstituted 1-Indanols via Ruthenium(II)-Catalyzed Dynamic Kinetic Resolution-Asymmetric Transfer Hydrogenation
Activated racemic 2,3-disubstituted 1-indanones 1 possessing two stereolabile centers were stereoselectively reduced to the corresponding chiral 2,3-disubstituted-1-indanols 2 by ruthenium(II)-catalyzed dynamic kinetic resolution-asymmetric transfer hydro
Cotman, Andrej Emanuel,Modec, Barbara,Mohar, Barbara
p. 2921 - 2924
(2018/05/28)
Electrocarboxylation of alkynes with carbon dioxide in the presence of metal salt catalysts
With some common metal salts (CuI, FeCl3) as catalysts, alkynes can be effectively electrocarboxylated with CO2 (4 MPa) in an undivided cell with Ni cathode and Al sacrificial anode containing n-Bu4NBr-DMF as supporting el
Li, Chuanhua,Yuan, Gaoqing,Jiang, Huanfeng
experimental part
p. 1685 - 1689
(2011/07/07)
More Articles about upstream products of 101278-21-1