These on reduction with NaBH4 gave exclusively cis-3-heterocycle substituted chroman-4-ols in good yields.
【文摘】3,3-Dibromochroman-4-ones on reaction with different heterocyclic secondary amines gave 3-substituted chromones.
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chromomycin, chromomycosis, chromone, chromonema, chromonemal, chromones, chromoneter, chromonucleoprotein, chromo-optometer, chromoparic,
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