A novel base catalyzed bis cyclization
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S. Danishefsky; B.H. Migdalof
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Article
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1969
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Elsevier Science
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French
β 108 KB
Recently we prepared the enetrione, I, and demonstrated that intermolecular additions of nucleophiles to the double bond triggers a series of intramolecular condensations leading to products of relevance to steroids. 1 We now report an interesting isomerization of I, occasioned by its treatment wit