Ketene silyl acetals such as (II) and (IV) are added in the presence of various Lewis acids (e.g. (C 6 F 5 ) 2 SnBr 2 ) to ketones with a extremely high level of chemoselectivity in competition with aldehydes or acetales (with exception of benzaldehyde). The generality of ketone preference is also e
✦ LIBER ✦
ChemInform Abstract: Reversal of Chemoselectivity in Organotin Lewis Acid Catalyzed Reaction of Ketene Silyl Acetal with Aldehyde and α-Enal.
✍ Scribed by J. CHEN; J. OTERA
- Publisher
- John Wiley and Sons
- Year
- 2010
- Weight
- 30 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0931-7597
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