Liebigs Annalen

Zum konzertierten oder nichtkonzertierten Verlauf von Reaktionen; Thermolyse von Dispiro [2.2. 2.2] deca??4, 9??dien

WR Roth, C Unger

Index: Roth, Wolfgang R.; Unger, Christian Liebigs Annalen, 1995 , # 7 p. 1361 - 1366

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Abstract

The enthalpy profile for the equilibrium 1 P 2@ 3 has been determined by oxygen trapping. From the oxygen dependence at low (0.0005-0.2 bar) and high pressure (1-180 bar) between 130 and 190 C the enthalpy wells of the diradicals 3 and 2 have been derived (3 17.1, 2 3.7 kcal. mol-l). The observation of a nonconcerted path for the equilibrium 1 P 3 is important with respect to the understanding of the controlling factor of the concerted and ...