- Concerted and Nonconcerted Reaction Path; Thermolysis of Dispirodeca-4,9-diene
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The enthalpy profile for the equilibrium 1 ->//-1).The observation of a nonconcerted path for the equilibrium 1 ->/- 3 is important with respect to the understanding of the controlling factor of the concerted and nonconcerted path of a reaction.The existence of a favourable potential energy path obviously is not of prime importance. - Keywords: Diradicals / Oxygen trapping / Energy well / Supercritic fluid reactions
- Roth, Wolfgang R.,Unger, Christian
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p. 1361 - 1366
(2007/10/02)
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- Hydrogenolysis of Small Cycloalkanes, XV. - Hydrogenation of Dispirodeca-4,9-diene
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On hydrogenation of the title compound 1 with Pd/C 1,4-diethylbenzene (2) is formed in 95percent yield, furthermore 1percent of cis- and 2percent of trans-1,4-diethylcyclohexane (3 and 4) as well as 2percent of 6-ethylspirooctane (15) are found.With Pt/C the intermediates 7, 12, 13, and 14 and up to 45percent of dispirodecane (17) are identified. 17 is hydrogenated with PtO2 in acetic acid to form 1,1,4,4-tetramethylcyclohexane (19).
- Kiwus, Regina,Schwarz, Wolfgang,Rossnagel, Ingrid,Musso, Hans
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p. 435 - 438
(2007/10/02)
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