Journal of Organic Chemistry p. 28 - 29 (1980)
Update date:2022-07-30
Topics:
Midland, M. Mark
Tramontano, Alfonso
Cable, John R.
The lithium acetylide anion of ethyl or methyl propiolate is readily prepared by the addition of n-butyllithium to ethyl or methyl propiolate at low temperature.The anion rapidly adds to a variety of aldehydes or ketones to give ethyl or methyl 4-hydroxy-2-alkynoates in high yield.
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