Diastereoselection in trimethylsilyl trifluoromethanesulphonatecatalyzed reaction of silyl ketene acetals with imines
β Scribed by Giuseppe Guanti; Enrica Narisano; Luca Banfi
- Publisher
- Elsevier Science
- Year
- 1987
- Tongue
- French
- Weight
- 209 KB
- Volume
- 28
- Category
- Article
- ISSN
- 0040-4039
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π SIMILAR VOLUMES
## Abstract Theoretical calculations at the DFT level indicate that the reaction of a nitrone with a silyl ketene acetal proceeds, contrary to previous suggestions, through a classical 1,3βdipolar cycloaddition, followed by a silyl group transfer step to give the openβchain product. Introduction of
It was found that rhenium complex is an effective catalyst for the reaction of carbonyl compounds with ketene silyl acetals. A wide range of b-silyloxy esters is obtained by the treatment of carbonyl compounds with ketene silyl acetals in the presence of a catalytic amount of ReBr(CO) 5 in moderate