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A Concise Route to (+)-Estrone
1Pharmaceutical Institute, Tohoku University, Aobayama, Sendai 980-8578, Japan.
Organic Letters
|July 13, 2000
Abstract:
A concise route to the Torgov diene, the key intermediate of estrone, has been devised using a chiral dioxycyclopentenone as the starting material by employing a sequence of five steps of reactions involving a Lewis acid-mediated Diels-Alder reaction with Dane's diene.