公开(公告)号：US6166256A

公开(公告)日：2000-12-26

申请号：US566073

申请日：2000-05-08

Applicant: Henry Giera ,  Carl Casser ,  Pieter Ooms ,  Michael Schelhaas ,  Christian Laue ,  Michaela Meiers ,  Gerhard Braun

Inventor： Henry Giera ,  Carl Casser ,  Pieter Ooms ,  Michael Schelhaas ,  Christian Laue ,  Michaela Meiers ,  Gerhard Braun

IPC: B01J31/02 ,  C07B61/00 ,  C07C239/10 ,  C07C239/00

CPC classification number: C07C239/10

Abstract: The present invention provides a process for preparing (4-nitroso-phenyl)phenyl-hydroxylamine which is characterized in that nitrobenzene is reacted in the presence of hydroxide and/or oxide-containing bases, optionally in the presence of solvents, at temperatures of 20 to 180.degree. C. and pressures of 0.1 to 10 bar.The process according to the invention has the particular advantage that it uses inexpensive and cost-effective nitrobenzene as starting material instead of the nitrosobenzene conventionally used hitherto.

Abstract translation: 本发明提供一种制备（4-亚硝基苯基）苯基羟胺的方法，其特征在于硝酸苯在含氢氧化物和/或氧化物的碱存在下，任选地在溶剂存在下，在20℃的温度下反应 至180℃，压力为0.1至10巴。 根据本发明的方法具有特别的优点，它使用廉价且具有成本效益的硝基苯作为起始原料，而不是迄今为止常规使用的亚硝基苯。