Vol.2, No 1, 1999 pp. 1 - 8
UDC 541.128
GAS CHROMATOGRAPHIC RETENTION INDICES
OF 2-PHENYL -2-ALKYLACETONITRILES
ON PACKED COLUMNS
Dušan Ž. Mijin, Slobodan D. Petrović, Dušan G. Antonović
Department of Organic Chemistry, Faculty of Technology and Metallurgy
University of Belgrade, P.O. Box 494, YU-11001, Belgrade, Yugoslavia
Abstract. In order to determine the gas chromatografic retention
indices for 2-phenyl-2-alkylacetonitriles on packed columns, a number of
2-phenyl-2-alkylacetonitriles were synthesized using the reaction of C-alkylation
of phenylacetonitrile. The products were characterized by their boiling
points, refractive indices, IR and NMR spectra. The gas chromatografic
retention indices (I) for the synthesized nitriles were determined on packed
columns (OV-17, OV-210 and OV-225) isothermally at 160, 180 and 200 oC.
The isothermal data obtained on these columns were compared and a comparison
of the retention index values, DELTA I and dI/dT is presented. The best
resolution of the investigated compounds was obtained using an OV-225 packed
column.
Key words: 2-phenyl-2-alkylacetonitriles, phase-transfer
catalysis, gas chromatography retention indices
GASNO HROMATOGRAFSKI RETENCIONI INDEKSI
2-FENIL-2-ALKILACETONITRILA
NA PAKOVANIM KOLONAMA
2-Fenil-2-acetonitrili su sintetizovani koristeći reakciju C-alkilovanja
fenilacetonitrila i okarakterisani temperaturama ključanja, indeksima refrakcije,
infracrvenim i NMR spektrima u cilju određivanja gasno hromatografskih
retencionih indeksa. Gasno hromatografski retencioni indeksi su određeni
na pakovanim kolonama (OV-17, OV-210 i OV-225) izotermno na 160, 180 i
200 oC, izračunate su DELTA I i dI/dT vrednosti.
Ključne reči: 2-fenil-2-alkilacetonitrili, međufazna kataliza,
gasno hromatografski retencioni indeksi
