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- W2000360662 abstract "Abstract A convenient synthesis of coumestans involving a combination of lithiation and Wittig reactions is described. Compounds 1a and 1b on reaction with n-butyllithium followed by treatment with diethyloxalate provide ketoesters 3a and 3b. Reaction of 3(a-b) with phosphorane generated from salt 4 gives 5(a-b) which on reaction with pyridine hydrochloride yield 7(a-b). DDQ oxidation of 7(a-b) gives coumestans 8(a-b)." @default.
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- W2000360662 modified "2023-09-30" @default.
- W2000360662 title "Useful Synthesis of Coumestans" @default.
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- W2000360662 doi "https://doi.org/10.1080/00397919008053103" @default.
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