Process for synthesising n-isopropyl-n'-o-...

Details Process for synthesising n-isopropyl-n'-o-... Process for synthesising n-isopropyl-n'-o-...

C - Chemistry, Metallurgy

07

C

260/474.2

C07C 307/02 (2006.01)

Patent

CA 1167861

ABSTRACT OF THE DISCLOSURE In order to synthesise N-isopropryl-N'-o-carbomethoxy- phenylsulphamide, sulphuric chlorohydrin is reacted with a pyridic base between -10° and 50°C, after which anthranilic acid methyl ester is firstly added at 0° - 60°C, followed by isopropylamine at 0° - 60°C, and finally phosphoric anhydride at 20° - 80°C, the product being precipitated by dilution with water and recovered by filtration.

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