-
公开(公告)号:US4242277A
公开(公告)日:1980-12-30
申请号:US43905
申请日:1979-05-30
申请人: Morihisa Tanaka , Kazuhiko Konno , Norio Sasaki , Kunio Uchimura
发明人: Morihisa Tanaka , Kazuhiko Konno , Norio Sasaki , Kunio Uchimura
IPC分类号: C07C207/04 , C07C67/00 , C07C201/00 , C07C207/00 , C07C209/00 , C07C209/76 , C07C211/52 , C07C131/00 , C07C87/60
CPC分类号: C07C209/76
摘要: In the process of subjecting a compound selected from phenols, N,N-dialkylanilines and mixtures thereof to nitrosation reaction conditions using a nitrite in an aqueous system to prepare nitrosated products selected from benzoquinone oximes and p-nitroso-N,N-dialkylanilines, the nitrosation reaction is advantageously carried out in the presence of an acid stronger than nitrous acid an organic acid of pKa 2 to pKa 5 or a salt thereof and water, the quantities of the organic acid and water being up to 5 times by mole and up to 10 times by weight the quantity of the compound to be nitrosated, respectively.
摘要翻译: 在选自苯酚,N,N-二烷基苯胺及其混合物的化合物的亚硝化反应条件下,使用亚硝酸盐在水性体系中制备选自苯醌肟和对亚硝基-N,N-二烷基苯胺的亚硝化产物的方法中, 亚硝化反应有利地在比亚硝酸,pKa 2至pKa 5的有机酸或其盐和水强的酸的存在下进行,有机酸和水的量高达5倍摩尔,直到 分别为亚硝化化合物的量的10倍。