Method for determining double-bond positions in mixtures of linear olefins.
We describe a new method for estimating the positions of double bonds in mixtures of linear olefins longer than octene. The method requires about a gram of olefin and a 5-10 min reaction catalyzed by a homogeneous metathesis catalyst. The carbon number distribution of the product mixture, as determined by gas chromatography, depends upon the distribution of double-bond isomers in the starting mixture. We describe a computer algorithm for using the final carbon number distribution to determine the locations of double bonds in the starting mixture. Examples are based on tetradecenes, hexadecenes, and octadecenes.
Gee
Jeffrey C
JC
Chevron Phillips Chemical Company, 1862 Kingwood Drive, Kingwood, Texas 77339, USA. geejc@cpchem.com
Prampin
Daniel S
DS