作业帮3甲基 2硝基苯甲酸：是由邻二甲苯合成吗?反应式如何?
来源：学生作业帮助网 编辑：作业帮 时间：2024/11/08 22:48:39
3甲基 2硝基苯甲酸：是由邻二甲苯合成吗?反应式如何?
3甲基 2硝基苯甲酸：是由邻二甲苯合成吗?反应式如何?
3甲基 2硝基苯甲酸：是由邻二甲苯合成吗?反应式如何?
应该是间二甲苯吧,
先硝化得到1,3-二硝基-4,6-二甲基苯,经过还原得到二甲基苯二胺,后经酰胺化保护,再硝化,然后脱保护,经叠氮化后亚磷酸还原得到1硝基,-2,5二甲基苯,后经溴化得到单取代的苄溴,经水解氧化得到目标产物
较复杂,实际生产不会这么去做
不容易啊，换间二甲苯试试吧
m-Toluic acid (100g) was added slowly with stirring to fuming nitric acid (400ml). Solid CO2, was added directly to the reaction mixture to maintain the temperature between 0-5 "C during the
addit...
全部展开
m-Toluic acid (100g) was added slowly with stirring to fuming nitric acid (400ml). Solid CO2, was added directly to the reaction mixture to maintain the temperature between 0-5 "C during the
addition and for 0.5 h afterwards. The mixture was then allowed to warm up to 5 "C, collected, and washed to give 3-methyl-2-nitrobenzoic acid.
收起