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Molecular formula : C13H11NO MW : 197.24 CAS No. :93-98-1
nature : white or colorless crystalline flake. 162-164 ° C melting point, boiling point of 117 ° C (1.33kPa.Conclusion), the relative density of 1.135. Almost insoluble in water, soluble in alcohol, ether-soluble. Can sublimation.
preparation methods : acid reaction with aniline derived. To dry acid and aniline steamed off in response 180-190 ° C for 2 h and then raise the temperature to 225 ° C At the beginning of the reaction process steam from the water, then steamed aniline, the final fraction of all steamed up. Will 255 ° Csteamed distillate solidification cooling, grinding, in purple gray crude. Crude washing with dilute hydrochloric acid to remove residual aniline, water washed with sodium hydroxide solution to remove residual acid. Finally washing, filtration, drying, re-crystallization of ethanol derived refined products.
purposes : organic synthesis intermediates, pharmaceuticals, dyes, spices production.
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