RADIOLYSIS OF LIQUID PROPYLENE: IONMOLECULE CONDENSATION
Radiolysis of propylene gives mainly hydrogen, and dimeric, trimeric, and other low molecular weight polymeric hydrocarbons. Detailed analysis of the dimer shows the products to be, in order of concentration, 4-methyl-1pentene, 1,5- hexadiene, 1-hexene, 2-methylpentane, 2,3dimethylbutane, 4-methyl-2-pentene, 2- methyl-1-pentene, 2-hexene, and n-hexane. The relative product concentrations, and the isotope species distribution in the products obtained from radiolysis of a 50: 50 mixture of propylene and propylene-d/sub 6/, demonstrate that the alkanes, the diene, and much of the olefinic products are formed by combinations of n-propyl, isopropyl, and allyl radicals. Isotopic species distributions in 4- methyl-1-pentene, 1-hexene, and 2-hexene demonstrate that appreciable fractions of each of these products are formed by a direct condensation of two propylene molecules with intramolecular hydrogen rearrangement. The previously postulated direct dimerization is thus verified, and the idea of its being an ion-molecule condensation receive s further support. (auth)
- Research Organization:
- Shell Development Co., Emeryville, Calif.
- NSA Number:
- NSA-17-004617
- OSTI ID:
- 4770409
- Journal Information:
- Tetrahedron (England), Journal Name: Tetrahedron (England) Vol. Vol: 14; ISSN TETRA
- Country of Publication:
- Country unknown/Code not available
- Language:
- English
Similar Records
Evidence for parallel pathways in the facilitated transport of alkenes through Ag{sup +}-exchanged Nafion films
Aromatization of unsaturated compounds on pentasils