Allenyl Enolates – A New Class of Chiral
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Becker, Markus ;Krause, Norbert
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Article
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1997
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John Wiley and Sons
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English
⚖ 441 KB
## Abstract Allenic silyl ketene acetals 3 formed by conjugate 1,6‐addition of organocuprates to 2‐propen‐1‐yl and 2‐buten‐1‐yl 2‐en‐4‐ynoates 1 and regioselective enolate capture with silyl electrophiles readily undergo [3,3]‐Ireland‐Claisen rearrangements to the 2‐substituted methyl 3,4‐dienoates