Formation of dicarbonyl compounds in the flash vacuum pyrolysis of saturated bicyclic peroxides

Abstract

Under flash vacuum pyrolysis, dioxabicyclo[n.2.1]alkanes (n= 3,4, and 5) isomerise to keto-aldehydes, MeCO[CH2]nCHO, whereas dioxabicyclo[n.2.2]alkanes (n= 2,3, and 4) fragment ot give, by loss of hydrogen and ethylene, mixtures of cycloalkane-1,4-diones and dialdehydes, OHC[CH2]nCHO.