First Enantioselective Protonation of Prochiral Allyltrimethyltins Using Lewis Acid Assisted Chiral Brønsted Acids
- 1 July 1997
- journal article
- letter
- Published by Georg Thieme Verlag KG in Synlett
- Vol. 1997 (7) , 758-760
- https://doi.org/10.1055/s-1997-5758
Abstract
The LBA which is prepared from tin tetrachloride and optically active binaphthol or its monomethyl ether is a highly effective reagent for the enantioselective protonation of prochiral allyltrimethyltins. The absolute stereochemical selectivity is quite different from that in the protonation of silyl enol ethers which we reported earlier.Keywords
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