1-Chloro-4-nitrobenzene → Carbamic acid, N-(4-chlorophenyl)-, ethyl ester

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Reaction Steps

26.6 g of 4-nitrochlorobenzene, 2.0 g of sulphur, 0.2 g of metallic selenium, 4.4 g of 4-chloroaniline, 2.36 g of potassium acetate, 3 g of the metal oxide mixture used in Example 1, 1.28 g of di-n-butylamine and 169 g of absolute ethanol were reacted together at 180° C. as described in Example 1. The reaction mixture was worked up as described in Example 1 and yielded 24.5 g of ethyl-N-(4-chlorophenyl)-carbamate, b.p. 118°-120° C./0.2 mm. The substance was 98.5% pure according to gas chromatographic analysis.

Provenance & Evidence