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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:通过无钯的醚化和掩蔽的肌酸制备取代的丁烯二酸酯
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摘要
Methods and materials for preparing 4-substituted-2-buten-4-olidos 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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