PROCESS FOR THE PREPARATION OF 3-AMINOMETHANE SULFONANILIDE

申请公布号：KR910003640(B1)

申请号：KR19880010601

申请日期：1988.08.20

申请公布日期：1991.06.07

申请人：

LUCKY CO.,LTD.

发明人：KANG DONG-HO;SON BYUNG-KI;CHOE JAE-HONG

分类号：C07C311/22;(IPC1-7):C07C311/22

主分类号：C07C311/22

摘要：A process for preparing 3-aminomethane sulfonanilide of formula (I) comprises (a) dissolving 3-nitroaniline of formula (II) in toluene or xylene, (b) reacting the dissolved 3- nitroaniline with methane sulfonyl chloride in the presence of N,N- dialkylaniline to obtain 3-nitromethane sulfonanilide of formula (III), and (c) reducing (III) in the presence of HAc and H2O. Cpd. (I) is useful as an intermediate in the prodn. of azo dyes.

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