10036-21-2Relevant articles and documents
3-arylpropanoate esters through the palladium-catalyzed reaction of aryl halides with acrolein diethyl acetal
Battistuzzi, Gianfranco,Cacchi, Sandro,Fabrizi, Giancarlo,Bernini, Roberta
, p. 1133 - 1136 (2003)
The reaction of aryl halides with acrolein diethyl acetal in the presence of Pd(OAc)2, n-Bu3N, and n-Bu4NCl in DMF at 90°C affords ethyl 3-arylpropanoates. A variety of functional groups are tolerated in the aryl halides, including ether, aldehyde, ketone, ester, nitrile, and nitro groups. ortho-Substituents do not hamper the reaction. 3-Arylpropanoate esters were isolated in good to excellent yields with many neutral, electron-rich and electron-poor aryl iodides and electron-poor aryl bromide. Neutral and electron-rich aryl bromides gave the desired ester in moderate yields.
CoBr2(Bpy): An efficient catalyst for the direct conjugate addition of aryl halides or triflates onto activated olefins
Amatore, Muriel,Gosmini, Corinne,Perichon, Jacques
, p. 6130 - 6134 (2007/10/03)
An efficient cobalt-catalyzed method devoted to the direct conjugate addition of functionalized aryl compounds onto Michael acceptors is described. The CoBr2(2,2′-bipyridine) complex appears to be an extremely suitable catalyst for the activation of a variety of aromatic reagents ranging from halides to triflates functionalized by reactive groups. This procedure allows for the synthesis of compounds resulting from 1,4-addition in good to excellent yields. The versatility of this original process represents a simple alternative to most known methods using organometallic reagents.
