CAJ | 학술논문

通过GC-MS、LC-MS等方法表征TS-1催化丙酮氨氧化制备丙酮肟过程中的副产物结构，分析副反应类型。结果表明：在此反应体系中，副反应主要产生途径有：(1)碱催化酮缩合，导致副产物骨架的生成；(2)亲核氨解，生成各种有机胺，导致体系碱性增强，起到自催化的作用；(3)消除脱水生成烯烃，然后烯烃被H2O2环氧化；(4)酮类副产物肟化；(5)酮肟氧化偶联反应生成2，3-二硝基-2，3-二甲基丁烷（DMNB）；(6)其它氧化过程生成不饱和度高的副产物等。
통과GC-MS、LC-MS등방법표정TS-1최화병동안양화제비병동우과정중적부산물결구，분석부반응류형。결과표명：재차반응체계중，부반응주요산생도경유：(1)감최화동축합，도치부산물골가적생성；(2)친핵안해，생성각충유궤알，도치체계감성증강，기도자최화적작용；(3)소제탈수생성희경，연후희경피H2O2배양화；(4)동류부산물우화；(5)동우양화우련반응생성2，3-이초기-2，3-이갑기정완（DMNB）；(6)기타양화과정생성불포화도고적부산물등。
Acetone oxime was prepared by catalytic ammoxidation of acetone over TS-1 zeolite. The structure of by-products from this synthetic process were characterization by GC-MS, LC-MS, etc. The types of side reactions were discussed in detail. The results showed that this reaction system mainly included the following side-reactions:(1) ketone condensation catalyzed by base to form skeletal structure of products;(2)nu-cleophilic ammonolysis of hydroxyl to form various organic amines, increase the alkalinity of the system raised, and enhance the side reaction by self-catalysis; (3)dehydration to form olefins, and then epoxidation by H2O2; (4) ketone oximation to form oximes; (5)oxidation-coupling of acetone oxime to form 2,3-dimethly-2,3-dinitro-butane(DMNB);(6) other oxidation processes to form various highly unsaturated by-products;etc.