摘要

FIELD: chemistry.
SUBSTANCE: invention related to method of obtaining ethyl ether of n-aminobenzoic acid (anesthesinum) of formula , which possesses local anesthetic action and is semi-product in Novocain synthesis. Method lies in reduction of ethyl ether of n-nitrobenzoic acid with further separation of target product. Method is characterised by the following: to simplify technology and increase product quality reduction process is carried out with mixing in isopropyl alcohol in presence of Raney Ni catalyst under hydrogen pressure 2.0-4.0 atm and temperature 60-70°C.
EFFECT: method makes it possible to avoid formation of considerable quantities of by-products and obtain anesthesinum with high output.
投稿的翻译标题METHOD OF OBTAINING ANESTHESINUM: patent of invention
源语言Russian
专利号2505526
IPCC07C 229/60,C07C 227/04
归档日期22/06/2012
Published - 27 一月 2014

GRNTI

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