Photoaddition of N-acylbenzoxazole-2-thiones to alkenes

Abstract

N-Acylbenzoxazole-2-thiones 1 undergo photoaddition with alkenes 2 in a regiospecific manner to yield benzoxazole derivatives 3–9 and/or the unexpected, iminothietanes 10–14 via spirocyclic aminothietane intermediates, depending on the nature of the substituents both on the N-atom of 1 and those present in the alkenes 2.

References

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