公开(公告)号：KR1020040017112A

公开(公告)日：2004-02-26

申请号：KR1020020049239

申请日：2002-08-20

Applicant: (주)퓨전켐텍크

Inventor： 이재호

IPC: C07C201/14

Abstract: PURPOSE: Provided is a process for preparing a dinitroalkyl alcohol with a high purity and at a high yield, which reduces the cost needed for raw materials by using a mononitro compound as a starting material and a nitrate as a reactant. CONSTITUTION: The process for preparing a dinitroalkyl alcohol using a nitrate comprises the steps of: (a) reacting a mononitro compound with an aqueous sodium hydroxide solution; (b) introducing a nitrate and a nitrite to the reaction mixture and stirring at 10 deg.C to form a homogeneous reaction solution; (c) introducing the reaction solution to an aqueous silver nitrate solution at once; (d) adding an aqueous sodium hydroxide solution to the reaction mixture to control the pH to 12; (e) filtering the reaction mixture to separate silver(Ag); (f) adding acetic acid to the reaction mixture to control the pH to 8.5 and introducing an aqueous formaldehyde solution; and (g) adding acetic acid to the reaction mixture to control the pH to 5 and stirring to complete the reaction.

Abstract translation: 目的：提供一种制备高纯度和高收率的二硝基烷基醇的方法，其通过使用单硝基化合物作为起始原料和硝酸盐作为反应物而降低原料所需的成本。 构成：使用硝酸盐制备二硝基烷基醇的方法包括以下步骤：（a）使单硝基化合物与氢氧化钠水溶液反应; （b）将硝酸盐和亚硝酸盐引入反应混合物中并在10℃下搅拌以形成均匀的反应溶液; （c）立即将反应溶液引入硝酸银水溶液中; （d）向反应混合物中加入氢氧化钠水溶液以将pH控制在12; （e）将反应混合物过滤以分离银（Ag）; （f）向反应混合物中加入乙酸以控制pH至8.5并引入甲醛水溶液; 和（g）向反应混合物中加入乙酸以将pH控制至5并搅拌以完成反应。