Abstract

Abstract Irradiation of 1,4-dibromo-2,5-piperazinedione (1) with olefins in acetonitrile gave mixtures of addition products (1:1-adducts and 1:2-adducts). Addition of 1,2-epoxybutane (a hydrogen bromide scavenger) resulted in enhanced yields of the adducts. Structures of the adducts were elucidated and a reaction mechanism is discussed.

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