Journal of Organic Chemistry p. 5847 - 5849 (1994)
Update date:2022-09-26
Topics:
Mandai
Kaihara
Tsuji
A highly diastereoselective synthesis of hydrindenone derivative 5 (98% de) was achieved via diastereotopic differentiation of 1,3-cyclopentanedione derivative 4 by intramolecular Horner-Emmons olefination. In addition, the compound 5 was converted to ketone 2, a new building block for 1α,25-dihydroxyvitamin D3 (1).
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