染料与染色
染料與染色
염료여염색
DYESTUFF INDUSTRY
2011年
4期
39-40,26
,共3页
邻氯甲苯%硝化%催化%2-氯-5-硝基甲苯
鄰氯甲苯%硝化%催化%2-氯-5-硝基甲苯
린록갑분%초화%최화%2-록-5-초기갑분
o-chlorotoluene%nitration%catalyze%2-chloro-5-nitrotoluene
邻氯甲苯硝化合成CLT酸因其转化率低及选择性差而未能实现工业生产。本文对邻氯甲苯硝化反应进行了研究,采用不同的催化剂体系,获得了成本低且选择性好的的合成条件。用酸性皂土和异丁醇为催化剂的硝化方法,转化率可达100%,2-氯-5-硝基甲苯比率提高到70.1%。
鄰氯甲苯硝化閤成CLT痠因其轉化率低及選擇性差而未能實現工業生產。本文對鄰氯甲苯硝化反應進行瞭研究,採用不同的催化劑體繫,穫得瞭成本低且選擇性好的的閤成條件。用痠性皂土和異丁醇為催化劑的硝化方法,轉化率可達100%,2-氯-5-硝基甲苯比率提高到70.1%。
린록갑분초화합성CLT산인기전화솔저급선택성차이미능실현공업생산。본문대린록갑분초화반응진행료연구,채용불동적최화제체계,획득료성본저차선택성호적적합성조건。용산성조토화이정순위최화제적초화방법,전화솔가체100%,2-록-5-초기갑분비솔제고도70.1%。
The synthesis of CLT Acid by nitration of o-chlorotoluene was failed to achieve in industry production because of its low yield and poor regioselectivity.The nitration of o-chlorotoluene was studied by employing different catalyst systems,and a low-cost,high regioselectivity condition was obtained.The results showed that： when acidic bentonite and isobutanol as catalyst,the conversion of o-chlorotoluene was 100%,and the yield of 2-chloro-5-nitrotoluene was increased to 70.1%.
