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ChemInform Abstract: 1,6-Conjugate Addition to o-Vinylphenyloxazolines, Syntheses of Chuangxinol and 3-n-Butylphthalide.

✍ Scribed by M. M. MARTINEZ; M. G. ONEGA; M. F. TELLADO; J. A. SEIJAS; M. P. VAZQUEZ-TATO

Publisher: John Wiley and Sons
Year: 2010
Weight: 30 KB
Volume: 29
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199804102

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✦ Synopsis

1,6-Conjugate Addition to o-Vinylphenyloxazolines, Syntheses of Chuangxinol and 3-n-Butylphthalide.

-Some phthalides of type (III) are synthesized in a one-pot reaction from vinyl compounds (I) by 1,6-conjugate addition of alkyllithium, trapping of the benzylic anion with the molybdenum reagent and following hydrolysis. Demethylation of (IIIb) gives the natural product chuangxinol (IV). -(MARTINEZ, M. M.; ONEGA, M.

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