发明名称 Método para produção de ácido 3-metil-2tiofenocarboxílico
摘要 <p>A method for producing 3-methyl-2-thiophenecarboxylic acid is provided. A method for producing 3-methyl-2-thiophenecarboxylic acid, which comprises reacting a compound represented by the formula (I): (wherein X is a chlorine atom or a bromine atom) with magnesium in the presence of an alkyl halide to give a Grignard reagent represented by the formula (II): (wherein X is the same as defined above), reacting the Grignard reagent of the formula (II) with carbon dioxide, and acidifying the reaction product.</p>
申请公布号 BRPI0913890(A2) 申请公布日期 2015.07.28
申请号 BR2009PI13890 申请日期 2009.06.25
申请人 ISHIHARA SANGYO KAISHA 发明人 TAKAYOSHI ANDO;NORIO ADACHI;AKIHIKO ISOGAI
分类号 C07D333/40 主分类号 C07D333/40
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