Décomposition Hétérolytique de Percarbonates de O, O‐Méthyl‐1 Phényl‐1 Éthyle et O‐Alkyle Ou O‐Vinyle en Solution

Abstract

A b s t r a c t : 0 , O -a -c u m y l 0 -e t h y l , 0 -v i n y l a n d 0 -i s o p r o p e n y l p e r o x y c a r b o n a t e s G b o n a t e s ) h a v e b e e n p r e p a r e d f r o m t h e c o r r e s p o n d i n g c h l o r o f o r m a t e s . T h e i r d e c o m p o s i t i o n s h a v e b e e n s t u d i e d i n t r i i s o p r o p y l b e n z e n e a n d d i -nb u t y l p h t a l a t e a s s o l v e n t s ; i n b o t h c a s e s t h e m a i n p r o c e s s was t h e h e t e r o l ys i s o f t h e p e r o x y d i c bond ( C r i e g e e r e a r r a n g e m e n t ) w h i c h g a v e 2 -p h e n o x y p r o p e n e . K i n e t i c s t u d i e s h a v e b e e n p e r f o r m e d u s i n g D i f f e r e n t i a l S c a n n i n g M i c r o c a l o r im e t r y ; t h e y h a v e s h o w n t h a t t h e d e c o m p o s i t i o n of 0 , O -a -c u m y l 0 -e t h y l p e r c a r -

The Chemistry of Peresters

“…Unlike peroxydicarbonates, the monocarbonates display room temperature stability. Percarbonates of cumyl hydroperoxide were shown to readily undergo Criegee‐type heterolysis …”