Déplacements homolytiques intramoléculaires: 20. Influence de la nature de la fonction peroxyde sur la décomposition induite de peroxydes δ-insaturés

Abstract

Induced decomposition of δ-unsaturated peroxidic derivatives CH2=CH(CH2)3OY (Y = OtBu, OCMe2Ph, OCOEt, OCMe2OMe) in various solvents yields a heterocycle and, in some cases, a peroxidic adduct. Intramolecular homolytic substitution (SHi) leading to the cyclic ether is highly dependent on the thermal stability of the peroxidic linkage. The rate constant was determined at 60 °C for Y = OtBu, OCMe2Ph.