8.
    发明专利
    未知

    公开(公告)号:DE1620476A1

    公开(公告)日:1970-04-09

    申请号:DE1620476

    申请日:1965-07-28

    Applicant: STAMICARBON

    Abstract: The invention relates to a process for preparing 3 - nitro - aza cycloheptane - 2 - N - carbochloride by reacting 2-chloro-aza cyclo-2,3-heptene-N-carbochloride with a nitrating acid preferably a mixture of nitric acid and sulphur trioxide in substantially equi-molecular proportions, in liquid sulphur dioxide at a temperature below 30 DEG C. and hydrolysing the reaction product at a temperature below 50 DEG C. The hydrolysis of the reaction product is preferably carried out in the presence of a water-miscible organic solvent for the aza-cycloheptane compound such as nitro benzene.

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