Author/Authors :
Huiyuan Chen، نويسنده , , Robert Caughey، نويسنده , , Ronggang Liu، نويسنده , , Mark McMills، نويسنده , , Michael Rupp، نويسنده , , W.H Myers، نويسنده , , W Dean Harman، نويسنده ,
Abstract :
A series of complexes has been prepared of the form [Os(NH3)5(4,5-η2-L)]2+ where L=furan and various 2-alkylated furans. Electrophilic addition to C(3) results in an unstable reaction intermediate, a 4,5-η2-3H-furanium species, that leads to several novel cyclization reactions with tethered nucleophiles to form new heterocycles.
Keywords :
pyrans , cyclization reactions , Furans , osmium and compounds
