97067-19-1Relevant articles and documents
Transition-Metal-Free Cross-Coupling of Aryl Halides with Arylstannanes
He, Qing,Wang, Liwen,Liang, Yong,Zhang, Zunting,Wnuk, Stanislaw F.
, p. 9422 - 9427 (2016/10/17)
Transition-metal-free LiCl-promoted cross-coupling reactions of tetraphenyltin, trichlorophenyl-, dichlorodiphenyl-, and chlorotriphenylstannanes with aryl halides in DMF provided access to biaryls in good to high yields. Up to four phenyl groups were transferred from the organostannanes substrates. The aryls bearing electron-withdrawing groups in either halides or organotin substrates gave coupling products in higher yields. The methodology has been applied for the efficient synthesis of ipriflavones.
Structure-reactivity relationships in negishi cross-coupling reactions
Dong, Zhi-Bing,Manolikakes, Georg,Shi, Lei,Knochel, Paul,Mayr, Herbert
supporting information; experimental part, p. 248 - 253 (2010/03/30)
Competition experiments have been performed to determine the relative reactivities of substituted bromobenzenes and of different arylzinc reagents in the [Pd(PPh3)4]-catalyzed Negishi cross-coupling reaction in THF at 25 °C. The crosscoupling reactions are accelerated by electron acceptors in the bromobenzenes, the effect of which increases in the order ortho a larger effect than substituent variations in the arylzinc halides (ρ = -0.98).
