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
作者:IYODA, MASAHIKO、SATO, KOICHI、ODA, MASAJI
DOI:——
日期:——
A simple synthesis of bitropones and conversion of 2,2′-bitropone into dicyclohepta[b,d]furan dication, a novel dication species
作者:Masahiko Iyoda、Koichi Sato、Masaji Oda
DOI:10.1039/c39850001547
日期:——
The nickel-catalysed coupling of 2-, 3-, and 4-bromotropone gave the corresponding bitropones in moderate yields; 2,2′-bitropone was converted b;y trifluoromethanesulphonic anhydride into dicyclohepta[b,d]furandication, a novel tricyclic dication system.