ISSN:
0021-8383
Schlagwort(e):
Chemistry
;
Organic Chemistry
Quelle:
Wiley InterScience Backfile Collection 1832-2000
Thema:
Chemie und Pharmazie
Notizen:
Dienoligomerization. XVI. Catalytic Codimerization of Isomeric Octatrienes with Ethene by Nickel ComplexesThe isomeric octatrienes (n-octa-1,3c,t,7-triene 1, n-octa-1,3c,6t-triene 2 and 3-methylhepta-1,4t,6-triene 3), which are easily obtained in high yields by transition metal catalysed dimerization of butadiene, react with ethene 4 in the presence of the cationic tetrakis-(triethylphosphite)-nickelhydride complex 5 to the dodimers 3-methylnona-1,4c,t,8-triene 6, 4-vinylocta-2c, 7-diene 7, 3-methyl nona-1,4c,t,7t-triene 8, 4-vinylocta-2c,6t-diene 9, 3,6-dimethylocta-1,4c,t,7-triene 10 and 3-methyl-4-vinylhepta-1,5c-diene 11. The concentration-time dependence and a possible reaction mechanism of the codimerization are discussed and the structure data of the reaction products are reported.
Zusätzliches Material:
1 Ill.
Materialart:
Digitale Medien
URL:
http://dx.doi.org/10.1002/prac.19803220418
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