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Isolation of 2-Nitro-phenol from the Mixture of Mono-nitro-phenols


2-NITRO-PHENOL is usually prepared from the mixture of mono-nitro-phenols obtained by nitration of phenol. According to the classical methods1 the isomers can be separated by steam distillation, as the steam volatility of the 2-nitro product is higher than that of the 3-nitro- or 4-nitro-phenol. The 2-nitro-phenol obtained by these methods, however, is usually contaminated by more or less of the 3-nitro- and 4-nitro-isomers. A number of interesting publications have appeared on the preparation of the pure products2.

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  1. 1

    Gattermann-Wieland, “Die Praxis des Organischen Chemickers”, 223 (Berlin, 1948). Binder, L. O., J. Chem. Education, 23, 285 (1946). Dey, B. B., Govindachari, T. R., and Govindarajan, M. T., J. Sci. and Indust. Res. (India), 2, 89 (1944).

  2. 2

    Partridge, M. W., and Chilton, J., Nature, 167, 79 (1951). Lederer, M., Austral. J. Sci., 11, 208 (1948). Bataafsche, N. V. de, Petroleum Maatschappij Fr., 852, 377 (1940). Baumhardt, G. C., Engenharia e quim (Rio de Janiero), 3, 72 (1951).

  3. 3

    Goddard, D., and Goddard, A. E., J. Chem. Soc., 121, 54 (1922).

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