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ChemInform Abstract: Enantioconvergent Synthesis of (+)-Estrone from Racemic 4-tert-Butoxy- 2-cyclopentenone.

✍ Scribed by T. SUGAHARA; K. OGASAWARA

Publisher: John Wiley and Sons
Year: 2010
Weight: 35 KB
Volume: 28
Category: Article
ISSN: 0931-7597
DOI: 10.1002/chin.199703241

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✦ Synopsis

Enantioconvergent Synthesis of (+)-Estrone from Racemic 4-tert-Butoxy-2-cyclopentenone.

-Starting from racemic cyclopentenone (I) (+)-estrone (XIII) is prepared in an enantioconvergent manner. Key steps are the lipase-mediated kinetic resolution of the alcohol (IV) and the Diels-Alder -retro-Diels-Alder sequence (IX) → (XII). -(SUGAHARA, T.;

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