الفهرس | Only 14 pages are availabe for public view |
Abstract hcctyla-Lion of p-t erphenyl by Friedel-Crdt s reaction was chosen as a second exmnpl f o r an isolcted ring aromatic hydrocabon af-i;e r b i p lienyl previous ly studiod by the author, 1% was not studiqd kinetically before, Tire kinetic s-budy of p-tecrphenyl was c-ad out in ni-krobenzene and in 1,2-diclllorocthanc as solvents by using coraplexes I ,and I1 as acetylating agents f o r the sake of conparison with previous viorlr Qn condensed ring axtd isolated ring aromatic hydmcarbons. The rate of acetylation of p-borphcnyl was measured at 0 low temperatures ( 6 - 14 C ) t o minimise the dcconlposition of the ace-kylation complex and the resin fon:iation. The rate of transformEtt;ion of thc oxonitm fom corilple?i (conplex I) t o the enolic fsmi complzx (complex 11) in l,2-dichloro ethane was studied kiiictically , In xi.trobemene as s~lvcn-it;h e two react ions ,~;~tudied ill this vrork nm-ely acctylz’iion of p-terplmnyl by complexes I aid 11 werc of global first ordcr. These reactions vere of the first order tvi-kli respect to the acetyla-king agciit axd zero order ’;:.lith respect to the hydrocarbon, The ac-Livation energies were conwi; ed. |