Process for synthesizing N-isopropyl-N'-o-carbomethoxyphenylsulp

Details Process for synthesizing N-isopropyl-N'-o-carbomethoxyphenylsulp Process for synthesizing N-isopropyl-N'-o-carbomethoxyphenylsulp

1982-07-13

1984-03-20

Shippen, Michael L.

Organic compounds -- part of the class 532-570 series

Organic compounds

Carboxylic acid esters

C07C14378

Patent

active

044382766

ABSTRACT:
In order to synthesize N-isopropyl-N'-o-carbomethoxyphenylsulphamide, sulphuric chlorohydrin is reacted with a pyridic base between -10.degree. and 50.degree. C., after which anthranilic acid methyl ester is firstly added at 0.degree.-60.degree. C., followed by isopropylamine at 0.degree.-60.degree. C., and finally phosphoric anhydride at 20.degree.-80.degree. C., the product being precipitated by dilution with water and recovered by filtration.

REFERENCES:
patent: 2829038 (1958-04-01), Ochsner
Fieser, "Reagents for Organic Synthesis", pp. 1128-1129, (1967).

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