Direct synthesis of ester-containing indium homoenolate and its application in palladium-catalyzed cross-coupling with aryl halide
作者:Zhi-Liang Shen、Kelvin Kau Kiat Goh、Colin Hong An Wong、Yong-Sheng Yang、Yin-Chang Lai、Hao-Lun Cheong、Teck-Peng Loh
DOI:10.1039/c0cc05597b
日期:——
An efficient method for the synthesis of ester-containing indium homoenolate via a direct insertion of indium into beta-halo ester in the presence of CuI/LiCl was described. The synthetic utility of the indium homoenolate was demonstrated by palladium-catalyzed cross-coupling with arylhalides in DMA with wide functional group compatibility.
method devoted to the directconjugateaddition 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 fromhalides to triflates functionalized by reactive groups. This procedure allows for the synthesis of compounds resulting from 1,4-addition in good
The consumable anode process permits the electrochemicalarylation of activatedolefins from functionalized aryl halides when cobalt halide is used as catalyst, either associated with bipyridine and pyridine as ligands in DMF as solvent, or with only pyridine in acetonitrile as solvent.
A consumable anode process permits the electrochemical Heck reaction between aromatic or vinylichalides and acrylate esters using cobalt bromide as catalyst associated with bipyridine as ligand in a mixture of acetonitrile/triethylamine/pyridine as solvent.