Abstract: 9,9-bis (methyl acetate) fluorene was synthesized from 9,9-bis (hydromethyl) fluorine (BHMF) and acetic anhydride under a solvent-free condition using I2 as catalyst. The structure of 9,9-bis (methyl acetate) fluorene was characterized by means of FT-IR and NMR. The effects of reaction conditions, such as reactants mole ratio, reaction time, reaction temperature and catalyst dosage, on the yield of 9,9-bis (methyl acetate) fluorene were investigated. Test results showed that under the optimal reaction conditions of mole ratios of BHMF/acetic anhydride/I2=1.0:6.0:0.016, a reaction temperature of 25℃ and a reaction time of 5 h, the yield and purity of 9,9-bis (methyl acetate) fluorene reached 78.6% and 98.7%, respectively.

Key words: 9,9-bis(methyl acetate)fluorene, 9,9-bis(hydromethyl)fluorene, I2, synthsis, structure characterization