The thermal reactions of 1,3-butadiene (BD) with cyclohexa-1,3-diene (CHD) have been studied in a static system between 437 and 526 K. The pressures of BD and CHD were varied from 61 to 397 torr and from 50 to 93 torr, respectively. The percentages of consumed BD and CHD were always kept lower than 14%. The reactions-in the order of importanceare A thermochemical analysis of a biradical mechanism is in agreement with these results.
The kinetics of the thermal reactions of bicyclo[4.2.2]deca-3;7-diene (BDD) and endo-and exo-5-vinylbicyclo[2.2.2]oct-2-ene (endo-and exo-VBO) have been studied in the gas phase.The temperature range was 459-526 K for BDD, 476-563 K for endo-VBO, and 513-578 K for exo-VBO. The initial pressures were varied from 2 to about 40 torr. These compounds where the superscripts represent the reagents and the subscripts the products. The heats of formation and the entropies of endo-VBO, exo-VBO, and BDD are estimated.
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