公开(公告)号：US4621157A

公开(公告)日：1986-11-04

申请号：US607794

申请日：1984-05-07

Applicant: Larry A. McDaniel

Inventor： Larry A. McDaniel

IPC: C07C205/22 ,  C07C205/23 ,  C07C85/24 ,  C07C79/10

CPC classification number: C07C209/76 ,  C07C201/08

Abstract: The present invention relates to improvements in processes of preparing dinitrated aromatic compounds, particularly dinitrated aniline and dinitrated substituted aniline compounds, employing relatively dilute and then more concentrated nitric acid as the nitrating agent.

Abstract translation: 本发明涉及使用相对稀的然后更浓缩的硝酸作为硝化剂来制备二硝基化芳族化合物，特别是二硝基苯胺和二硝基取代的苯胺化合物的方法的改进。

公开(公告)号：USRE33168E

公开(公告)日：1990-02-20

申请号：US214932

申请日：1988-07-05

Applicant: Larry A. McDaniel

Inventor： Larry A. McDaniel

IPC: C07C205/22 ,  C07C209/76

CPC classification number: C07C209/76 ,  C07C201/08

Abstract: The present invention relates to improvements in processes of preparing dinitrated .[.aromatic compounds, particularly dinitrated aniline and dinitrated substituted aniline compounds, employing relatively dilute and then more concentrated nitric acid as the nitrating agent.]. .Iadd.aniline and substituted phenol compounds in a two-step process, employing, in the first or mononitration step the spent nitric acid from the second of dinitration step. .Iaddend.