The process in order to divide the esters of lactam obtained by the transposition of oximes cyclic by means of sulfuric acid.

• 1. 高浓度发烟硫酸催化环己酮肟制备己内酰胺的方法 [P] . 中国专利： CN105315211B . 2018.01.09
• 2. 高浓度发烟硫酸催化环己酮肟制备己内酰胺的方法 [P] . 中国专利： CN105315211A . 2016-02-10
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  机译： 一种用内酰胺的硫酸酯裂解环酮肟的肟的方法

• 4. Process for the separation of lactams from the products of the transposition of the oximes sulphate corresponding [P] . 法国专利： FR1008806A . 1952-05-22

  机译： 从硫酸肟肟转座产物中分离内酰胺的方法

• 5. Process for improving the efficiency in the transformation of oximes in isoximes or lactams by the transposition [P] . 法国专利： FR895144A . 1945-01-16

  机译： 通过转座提高异肟或内酰胺中肟转化效率的方法

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