Studies on the stability of 1,7,9-trioxadispiro[5.1.5.2]pentadecane system: The common tricyclic acetal moiety in pinnatoxins

Synlett

Volumn , Issue 6, 1998, Pages 603-606

  Ishihara, Jun ^a   Sugimoto, Tetsuya ^a   Murai, Akio ^a  

^a HOKKAIDO UNIVERSITY   (Japan)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 0000193660     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-1998-1742     Document Type: Article

References (28)

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22. 4NF (10 eq) and AcOH (10 eq) afforded complex mixtures.
23. 1H-NMR measurements at variable temperatures supported the existence of two conformers of the tetrahydrofuran ring in equilibrium.
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25. 1H-NMR analysis.
26. -1.
27. -1, corresponding to a free hydroxyl group.
28. It was also reported that the unexpected rearrangements of the trioxadispiroacetal compounds proceeded in the presence of acid. see: Dorta, R. L.; Martín, A.; Suárez, E.; Betancor, C. J. Org. Chem. 1997, 62, 2273.