A Sulfur Monoxide Surrogate Designed for the Synthesis of Sulfoxides and Sulfinamides** |
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Authors: | David Austrup Dr. Fumito Saito |
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Affiliation: | Department Chemie, Ludwig-Maximilians-Universität München, Butenandtstr. 5–13, Haus F, 81377 München, Germany |
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Abstract: | Sulfur monoxide (SO) is a highly reactive species that cannot be isolated in bulk. However, SO can play a pivotal role as a fundamental building block in organic synthesis. Reported herein is the design and application of a sulfinylhydrazine reagent as an easily prepared sulfur monoxide surrogate. We show facile thermal SO transfer from this reagent to dienes where a reaction using a mechanistic probe suggests the generation of singlet SO. Combined with Grignard reagents and appropriate carbon or nitrogen electrophiles, the reagent serves as an effective “SO” donor to enable the one-pot, three-component synthesis of sulfoxides and sulfinamides. |
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Keywords: | Grignard Reaction One-Pot Synthesis Sulfoxides Sulfur Monoxide Synthetic Methods |
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