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Preparation of substituted butenolides via palladium-free etherification and amination of masked mucohalic acids
Preparation of substituted butenolides via palladium-free etherification and amination of masked mucohalic acids
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机译:通过无钯醚化和掩蔽的黏膜卤代酸胺化制备取代的丁烯内酯
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摘要
Methods and materials for preparing 4-substituted-2-buten-4-olides are disclosed. The methods include reacting a masked mucohalic acid with a primary or secondary amine or with an arylol in the presence of a base. Unlike existing processes, the disclosed methods do not require the use of palladium, which make them well suited for preparing intermediates in drug syntheses.
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