Tetrahedron Letters p. 6607 - 6610 (1997)
Update date:2022-08-03
Topics:
Breullles
Oddon
Uguen
Acetalisation of p-anisaldehyde by either (R) or (S)-butanetriol has been shown to occur selectively and quantitatively by using Noyori's protocol. The crystalline dioxane derivatives R-6a and S-6a which formed respectively in these conditions have been converted efficiently into the title fragments of spiramycin.
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