Method for synthesizing 1,2-cyclohexanedione

• Main Authors: WANG JIN, LI CHENYU, ZHANG TIANLI, LU BIN, JIN WENBIN, YAN YIYU, QIU YONGFU, HU XIAO
• Format: Patent
• Language: Chinese; English
• Published: 20.11.2018
• Subjects: ACYCLIC OR CARBOCYCLIC COMPOUNDS; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY

The invention relates to a method for synthesizing 1,2-cyclohexanedione. The method comprises the following steps: dissolving cyclohexanone into a mixed system of an organic solvent and water, furtheradding iodine of a catalysis amount, carrying out a reaction for 1-2 hours at 25-80 DEG C, carrying out vacuum distillation on the obtained crude product, thereby obtaining the 1,2-cyclohexanedione,wherein the volume ratio of the organic solvent to water in the mixed system is (1:1) to (1:10). As low-toxicity and low-harm raw materials are used, no toxic or harmful waste gas or waste dreg is generated in the whole reaction process, in addition, the method is simple to operate and high in product yield, and the product cost is effectively reduced. Compared with the prior art, the method provided by the invention is applicable to on-scale industrial production. 本发明涉及种1,2-环己二酮的合成方法，将环己酮溶于有机溶剂与水的混合体系中，再加入催化量的碘，在25-80℃反应1～2小时，得到的粗产物经减压蒸馏得到1，2-环己二酮，所述混合体系中有机溶剂与水的体积比1:1至1:10。本发明使用低毒低害的原料，整个反应过程无有毒有害的废气废渣产生；而且操作简单，产物收率高，