Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing
Patent
1982-09-30
1984-05-08
Lone, Werren B.
Organic compounds -- part of the class 532-570 series
Organic compounds
Oxygen containing
568750, 568706, C07C 7922
Patent
active
044476540
ABSTRACT:
A process is disclosed for separating nitrated phenolic compounds from other nitrated and unnitrated phenolics by treating a mixture of the phenolics with a metal halide salt. The metal halide salt preferentially forms a complex with one of the phenolics over other related phenolics in the mixture. The preferentially-formed complex of one of the phenolics may then be isolated from the mixture and the complex decomposed to provide a product substantially enriched in, or substantially entirely composed of, one phenolic. The process is particularly suitable for resolving a mixture comprising phenol or cresol from their ortho-nitrated derivatives, or a mixture of two isomeric nitrated phenols or cresols or a mixture of mono-and dinitrated phenols or cresols.
REFERENCES:
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patent: 4267389 (1981-05-01), Leston
patent: 4267390 (1981-05-01), Leston
patent: 4267391 (1981-05-01), Leston
patent: 4267392 (1981-05-01), Leston
Szell et al., "Nature," No. 4807, Feb. 15, 1958, pp. 481, vol. 181.
Sharpless et al., "Jour. Organic Chemistry", vol. 40, No. 9(1975), pp. 1252-1257.
Koppers Company Inc.
Lone Werren B.
Long Daniel J.
Zeh, Jr. Herbert J.
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