Process for the preparation of 3-chloro-3'-Nitro-4'-Methoxybenzo

Organic compounds -- part of the class 532-570 series – Organic compounds – Oxygen containing

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C07C 4561

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057419361

ABSTRACT:
3-Chloro-3'-nitro-4'-methoxybenzophenone with substantially lower contents of dinitro derivatives than hitherto is obtained if 3-chloro-4'-methoxybenzophenone is nitrated in from 65 to 85% strength by weight sulfuric acid with nitric acid at temperatures in the range from -20.degree. to +60.degree. C.

REFERENCES:
patent: 4288620 (1981-09-01), Rosner
patent: 4339618 (1982-07-01), Rosner
patent: 4361704 (1982-11-01), Onopchenko et al.
patent: 4560800 (1985-12-01), Bakshi et al.
Chemical Abstracts, vol. 107, No. 25, Dec. 21, 1987, Columbus, Ohio, US; Abstract No. 236236k, Seite 741; Spalte 2; XP002022340 *Zusammenfassung* & RO 91 633 A (Intreprinderea de Medicamente "Terapia").
A.H.M. Raeymaekers, Synthesis and Anthelminthic Activity of Alkyl-(5-acyl-1-H-benzimidazol-2-yl) Carbamates,Arzneim.-Forsch./Drug Res., 28 (1), Heft 4, pp. 586-594, (1978).

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