research article

Synthese von bicyclischen Lactonen aus Aldehyden und 2,5-Bis(trimethylsiloxy)thiophen

Abstract

By reaction of 2,5-Bis(trimethylsiloxy)thiophene (3) with aldehydes (4) in presence of trimethylsilyl trifluoromethanesulfonate (1) 3,4-disubstituted thiosuccinic anhydrides (5) were obtained. Hydrolysis of the products 5 yields the bislactones 6, 7

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