Homocoupling of Halotropones Promoted by <i>Bis</i>(1,5-cyclooctadiene) Nickel in the Presence of <i>Tris</i>(1-pyrazolyl)methane: An Easy Route to [Bi-1,3,5-cycloheptatrien-1-yl]-7,7′-diones
作者:Tiziana Funaioli、Marino Cavazza
DOI:10.1080/00397910802563404
日期:2009.4.7
An efficient homocoupling of 2-halotropones, to afford 2,2'-bitropones, occurs in toluene at rt in the presence of stoichiometric amounts of [Ni(cod)2] and tris(1-pyrazolyl)methane ligand, in a 1:1 molar ratio. This methodology was extended to aryl halides.
IYODA, MASAHIKO;SATO, KOICHI;ODA, MASAJI, J. CHEM. SOC. CHEM. COMMUN., 1985, N 21, 1547-1548