A Convenient Method for Carbon Extension of Acetals and Aldehydes by the Use of Ketenedithioacetal and Nucleophiles
A convenient method for carbon extension of acetals and aldehydes has been established consisting of combining a ketenedithioacetal 1 and nucleophiles such as alkyl- and alkynylmetal, metal enolate, and hydride. Acetals and aldehydes react with 1 in the presence of TMSOTf, and the successive additio...
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Veröffentlicht in: | Chemistry letters 2002-10, Vol.31 (10), p.996-997 |
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Hauptverfasser: | , , , |
Format: | Artikel |
Sprache: | eng |
Online-Zugang: | Volltext |
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Zusammenfassung: | A convenient method for carbon extension of acetals and aldehydes has been established consisting of combining a ketenedithioacetal 1 and nucleophiles such as alkyl- and alkynylmetal, metal enolate, and hydride. Acetals and aldehydes react with 1 in the presence of TMSOTf, and the successive addition of nucleophiles affords the corresponding β-alkoxy and β-siloxy dithioacetals in good yields. |
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ISSN: | 0366-7022 1348-0715 |
DOI: | 10.1246/cl.2002.996 |