PALLADIUM-ASSISTED FORMATION OF CARBON-CARBON BONDS .2. STOICHIOMETRIC SYNTHESIS OF SPIROCYCLIC COMPOUNDS - X-RAY STRUCTURE OF A PI-ALLYLICPALLADIUM INTERMEDIATE
J. Vicente et al., PALLADIUM-ASSISTED FORMATION OF CARBON-CARBON BONDS .2. STOICHIOMETRIC SYNTHESIS OF SPIROCYCLIC COMPOUNDS - X-RAY STRUCTURE OF A PI-ALLYLICPALLADIUM INTERMEDIATE, Inorganica Chimica Acta, 222(1-2), 1994, pp. 1-4
Stoichiometric reactions of arylpalladium compounds with alkynes give
spirocyclic organic and organometallic compounds. The compound thoxy-6
-acetylphenyl)}di(mu-chloro)dipalladium(II) reacts with diphenylacetyl
ene or ethyl 3-phenylpropiolate giving 9,10-dimethoxy-spiro[4.5]1,3,6,
9-decatetraen-8-one and ,10-dimethoxy-spiro[4,5]1,3,6,9-decatetraen-8-
one, respectively. A pi-allylpalladium complex, ,9-decatrien-6-enyl}(2
,2'-bipyridine)palladium(II) trifluoromethylsulfonate solvated, with o
ne molecule of 1,2-dichloroethane, has also been isolated and its stru
cture determined by X-ray diffraction studies.