Tetrahedron Letters p. 1819 - 1822 (2012)
Update date:2022-08-05
Topics:
Francuz, Jovana
Sre?o, Bojana
Popsavin, Mirjana
Benedekovi?, Goran
Divjakovi?, Vladimir
Koji?, Vesna
Bogdanovi?, Gordana
Kapor, Agne?
Popsavin, Velimir
Treatment of 7-O-benzoyl-5-O-benzyl derivatives of (+)-goniofufurone or 7-epi-(+)-goniofufurone with titanium(IV) chloride or titanium(IV) bromide gave 7-chloro and 7-bromo-7-deoxy-goniofufurone mimics as the main reaction products along with minor amounts of the corresponding C-7 epimers. An unexpected cyclized product, benzoxepane 8 was isolated in some cases.
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Doi:10.1039/c2cc17557f
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