2002•Fain kemikaruRequires access
Synthesis of 2,2-Bis(4-hydroxy-3-nitrophenyl)-propane
HU Yun-chu
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Abstract
Nitration of 2,2-bis(4-hydroxyphenyl)-propane by nitric acid gives 2,2-bis(4-hydroxy-3-nitrophenyl)-propane,an intermediate of fire-retardants.Experimental results show that under the best nitration conditions that the concentration of nitric acid is 22%,the reaction temperature is 30 ℃and the reaction time is 3 h,the highest yield of the target product is 87.5%.After purification with column chromatography,data of elementary analysis,IR, 1HNMR, 13CNMR and MS of the product conform with its chemical structure.