Total Synthesis of Zizyphin A and N-Acet
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Prof. Dr. Ulrich Schmidt; Dr. Albrecht Lieberknecht; Dipl.-Chem. Hilmar Bökens;
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Article
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1981
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John Wiley and Sons
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English
⚖ 251 KB
tols (12) or as lactol ethers (13). After protection of the hydroxy group in (9), deblocking leads to preparatively useful homoaldol derivatives with free carbonyl groups. Thus, the acetate of (9b) gives the y-acetoxyketone (14) in 94% yield. Procedure (9): All operations must be carried out under