Base-dependent stereoselectivity in reac
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Zhong-Wu Guo; Aleksander Zamojski
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Article
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1992
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Elsevier Science
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French
⚖ 253 KB
Alkylation of the anion 4 is only little stereoselective und leads to mixtures of stereoisumeric products SA&9A,B. Proportion qf stereoisomers depends strongly on the base employed. Condensation with acetaldehyde or benzaldehyde leads to four stereoisomeric products llC-F and 12C-F, proportion of wh