Abstract
Treatment of the 4-deoxy-D-xylulose β-ketodecanoate 13c with basic alumina affords 4′-deoxysyringolide 2 14 as a single stereoisomer, indicating that the course of the biomimetic triple cyclisation of the corresponding D-xylulose ester 3b to syringolide 2 5b is not dependent upon the presence of the 4R-hydroxyl group. The diacyl butanolide 15 is formed simultaneously by a side reaction of the initial Knoevenagel condensation product of the ester 13c.
Original language | English |
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Pages (from-to) | 6927-6930 |
Number of pages | 4 |
Journal | Tetrahedron Letters |
Volume | 44 |
Issue number | 36 |
DOIs | |
Publication status | Published - 1 Sept 2003 |