The synthesis of substituted 2,3-dihydrothieno[2,3-b]-thiophenes via intramolecular michael addition |
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Authors: | Theresa M. Williams Ronald J. Hudcosky Cecilia A. Hunt Kenneth L. Shepard |
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Abstract: | The first regiospecific synthesis of the 2,3-dihydrothieno[2,3-b]thiophene ring system was achieved using an intramolecular Michael addition in the key cyclization step. This strategy represents a novel and potentially general method for dihydrothiophene and dihydrothiophene S,S-dioxide annellation. |
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