Preparation method of 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide

• Main Authors: WANG JIANGUO, ZHANG CONGGUO, LI FATING, WU YINGTAO, WANG YONG
• Format: Patent
• Language: Chinese; English
• Published: 23.07.2024
• Subjects: ACYCLIC, CARBOCYCLIC OR HETEROCYCLIC COMPOUNDS CONTAININGELEMENTS OTHER THAN CARBON, HYDROGEN, HALOGEN, OXYGEN, NITROGEN,SULFUR, SELENIUM OR TELLURIUM; CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; METALLURGY; ORGANIC CHEMISTRY; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention provides a preparation method of 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, and belongs to the field of 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, and relates to a preparation method of 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide. The preparation method of the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide comprises the following steps: carrying out a catalytic reaction, carrying out hydrolysis treatment, and carrying out dehydration treatment. According to the preparation method of the 9, 10-dihydro-9-oxa-10-phosphaphenanthrene-10-oxide, provided by the invention, esterification and acylation reactions can be efficiently carried out on the premise that the reaction is safe and controllable, so that the overall reaction efficiency is effectively improved, the reaction time is shortened, and the reaction energy consumption is reduced; meanwhile, unnecessary consumption of phosphorus trichloride is effectively avoided, the utilization rate of raw materials is impro