Volhard–Erdmann cyclization
The Volhard–Erdmann cyclization is an organic synthesis of alkyl and aryl thiophenes by cyclization of disodium succinate or other 1,4-difunctional compounds (γ-oxo acids, 1,4-diketones, chloroacetyl-substituted esters) with phosphorus heptasulfide. The reaction is named after Jacob Volhard and Hugo Erdmann. An example is the synthesis of 3-methylthiophene starting from itaconic acid:
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Volhard–Erdmann cyclization
The Volhard–Erdmann cyclization is an organic synthesis of alkyl and aryl thiophenes by cyclization of disodium succinate or other 1,4-difunctional compounds (γ-oxo acids, 1,4-diketones, chloroacetyl-substituted esters) with phosphorus heptasulfide. The reaction is named after Jacob Volhard and Hugo Erdmann. An example is the synthesis of 3-methylthiophene starting from itaconic acid:
has abstract
La ciclación de Volhard-Erdman ...... Jacob Volhard y Hugo Erdmann.
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La ciclizzazione di Volhard-Er ...... partire dall'acido itaconico:
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La cyclisation de Volhard-Erdm ...... partir de l'acide itaconique :
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The Volhard–Erdmann cyclizatio ...... e starting from itaconic acid:
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福尔哈德-埃德曼环化反应（Volhard-Erdmann c ...... 合成烃基和芳基噻吩化合物。 例如，从衣康酸合成3-甲基噻吩：
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La ciclación de Volhard-Erdman ...... Jacob Volhard y Hugo Erdmann.
@es
La ciclizzazione di Volhard-Er ...... partire dall'acido itaconico:
@it
La cyclisation de Volhard-Erdm ...... partir de l'acide itaconique :
@fr
The Volhard–Erdmann cyclizatio ...... e starting from itaconic acid:
@en
福尔哈德-埃德曼环化反应（Volhard-Erdmann c ...... 合成烃基和芳基噻吩化合物。 例如，从衣康酸合成3-甲基噻吩：
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Ciclación de Volhard-Erdmann
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Ciclizzazione di Volhard-Erdmann
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Cyclisation de Volhard-Erdmann
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Volhard–Erdmann cyclization
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福尔哈德-埃德曼环化反应
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