2- nitro-fluoren-9-one CAS NO:3096-52-4,Molecular formula:C13H7NO3,Molecular weight:225.21Send Inquiry
2-Nitro-fluoren-9-one(CAS NO 3096-52-4)
A method for preparing fluorenone by 2- nitro-fluoren-9-one system comprises the following steps: a measurement of fluorenone and water into the reactor, start adding mixed acid of sulfuric acid and nitric acid by heating to 75 DEG C, the control system of temperature of 80-120, the reaction time is 0.5-3h; the cooling water pump, filter. Wash, dry, yellow solid crude product, the crude product was recrystallized with ethanol, and dried to obtain pure product. The yield of this method is 91.0-96.0%, and the purity is more than 99%. The invention has the advantages of simple operation, easy separation and purification of the product, high yield, low cost and small environmental pollution.
Package and shipping