Chemische Berichte

Substituenteneffekte auf die C–C??Bindungsstärke, 11. Thermolyse von Tetraalkylpinacoldimethylethern

H Birkhofer, HD Beckhaus, C Rüchardt

Index: Birkhofer, Hermann; Beckhaus, Hans-Dieter; Ruechardt, Christoph Chemische Berichte, 1993 , vol. 126, # 4 p. 1023 - 1030

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Citation Number: 3

Abstract

The products and the kinetics of the thermolysis reaction of the pinacol dimethyl ethers 1 a-1 f have been studied. A linear correlation between AG*(300 C) of thermolysis and the strain enthalpies H, of 1, or its release Ds during the dissoziation into radicals 2, is observed. From this correlation a stabilization enthalpy HR= 2.1 f 0.5 kcal/mol is deduced for a-methoxyalkyl radicals 2 as compared to tert-alkyl radicals.