Thermal decomposition of 1-(aminophenyl)-5-tert-butyl-4,4-dimethyl- 2,6,7-trioxabicyclo[3.2.0]heptanes: unusual O–O bond cleavage competing with normal fragmentation of 1,2-dioxetanes

Abstract

A dioxetane (ortho-3a) decomposes thermally to give the normal carbonyl product while dioxetanes (ortho-3b–c) decompose at low temperature to afford heterocycles 6 and 7 in high yields.

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