Preparation and Thermal Decomposition Reaction of p-Chloro Benzaldehyde Diperoxide in Tetrahydrofuran Solution

Preparation and thermal decomposition studies of the title molecule (3,6-di-p-chlorophenyl-1,2,4,5-tetraoxacyclohexane) were carried out in tetrahydrofuran solution in the 52–130°C temperature range. The overall reaction follows a first-order kinetic law up to at least 60% diperoxide conversion. The activation parameters (ΔH# = 15.1±0.7 kcal mol−1 and ΔS# = − 35.5±1.9 cal mol−1 K−1) for the unimolecular rupture of the O–O bond in the diperoxide molecule were obtained by measuring the undecomposed diperoxide at different reaction times by the HPLC technique. P-chlorobenzaldehyde, p-chlorobenzoic acid, and chlorobenzene were detected by GC as the major organic products of the reaction.