Total synthesis of diospyrol an anthelmi
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C. Mahidol; B. Tarnchompoo; C. Thebtaranonth; Y. Thebtaranonth
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Article
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1989
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Elsevier Science
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French
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Diospyrol 4 is constructed from a masked butadiene synthon. anthracene adduct 1 [R = H]. The key construction steps comprise tandem Michael addition-Dieckmann condensations, first between anion 7 and 1 , and subsequently between anion 7 and 15. ln the previous communication 1 we described a straigh