申请人:API CORPORATION
公开号:US20220009880A1
公开(公告)日:2022-01-13
High purity 2-naphthylacetonitrile with fewer impurities can be used as a starting material or intermediate for synthesizing various pharmaceutical products, agricultural chemicals, and chemical products, and a production method thereof. A high purity 2-naphthylacetonitrile having an HPLC purity of 2-naphthylacetonitrile of not less than 95 area %, and containing naphthalene compounds represented by the formulas (a)-(j) at a content of a predetermined area % or below. A method for producing high purity 2-naphthylacetonitrile, may include: subjecting 2′-acetonaphthone to a Willgerodt reaction in the presence of an additive where necessary, and hydrolyzing the obtained amide compound to give 2-naphthylacetic acid; and reacting the 2-naphthylacetic acid obtained in the subjecting, a halogenating agent and sulfamide in the presence of a catalyst as necessary in an organic solvent to give 2-naphthylacetonitrile.
高纯度的2-萘乙腈含有较少的杂质,可用作合成各种药物产品、农药化学品和化工产品的起始物料或中间体,以及其生产方法。具有不低于95%面积百分比的2-萘乙腈的HPLC纯度,并且包含在预定面积百分比以下的由式(a)-(j)表示的萘化合物。生产高纯度2-萘乙腈的方法可能包括:在必要时在添加剂的存在下,将2'-乙酰基萘酮经Willgerodt反应,并水解得到酰胺化合物以得到2-萘乙酸;并在有机溶剂中,在必要时在催化剂的存在下,将通过上述步骤得到的2-萘乙酸、卤代试剂和磺胺酰胺反应以得到2-萘乙腈。