Oxidative coupling of highly coordinating metal phenolates promoted by FeCl3 afforded variously substituted symmetric 2,2′-dihydroxy biaryls in good yield and high regiochemical control.
Interplay between the crystal stability and the energy of the molecular conformation
作者:Konrad Dyk、Łukasz Baran、Wojciech Rżysko、Marek Stankevič、Daniel M. Kamiński
DOI:10.1039/d0ce01673j
日期:——
The molecule adopts the C-conformation for the torsion angle of around 60° and the T-conformation for the angle of around 130°, which differ in energy by ∼0.8 kJ mol−1. Theoretical studies for the gaseous phase show that the C-conformer has a lower energy. However, crystallization experiments show that the most stable crystal structure consists of only the energetically less stable T-conformer. On
Oxidative coupling of dichloroaluminium phenolates: Highly selective synthesis of hydroxylated Bi- and tetraaryls
作者:Giovanni Sartori、Raimondo Maggi、Franca Bigi、Attilio Arienti、Giuseppe Casnati、Gabriele Bocelli、Giovanni Mori
DOI:10.1016/s0040-4020(01)88316-2
日期:1992.1
Dichloroaluminium phenolates 4 undergo highly selective FeCl3-promoted oxidative coupling. Variously substituted symmetric 2,2'-dihydroxy biaryls 2 are obtained in good yields and excellent selectivities. The chelation control in the final reaction products 7 promotes the chemoselectivity of the process.
A Stepwise Synthesis of Hydroxylated Polyaryls
作者:Giovanni Sartori、Raimondo Maggi、Franca Bigi、Michele Grandi
DOI:10.1021/jo00092a036
日期:1994.7
Sartori Giovanni, Maggi Raimondo, Bigi Franca, Grandi Michele, J. Org. Chem, 59 (1994) N 13, S 3701-3703
作者:Sartori Giovanni, Maggi Raimondo, Bigi Franca, Grandi Michele