Reductive coupling reactions with organobismuth and organolead arylation agents in the synthesis of benzopyran derivativesстатья
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Аннотация:Benzopyran derivatives were synthesized in good yields by the reactions of tris[2-(chloromethyl)phenyl]bismuth diacetate and 2-(halomethyl)aryllead triacetates with phenols and naturally occurring 4-hydroxycoumarins in the presence of bases according to a three-step one-pot procedure.