发明名称 |
Process for preparing 4,6-dinitroresorcinol |
摘要 |
A method of nitrating resorcinol which is selective for the production of the 4,6-dinitro resorcinal isomer. A resorcinol-based starting material is admixed with a nitrating solution from which substantially all nitrogen dioxide and nitrous has been removed. The nitrating solution contains white fuming nitric acid, a nitrosonium ion control agent such as urea, and, optionally, concentrated sulfuric acid. The 4,6-dinitroresorcinal isomer is provided in yields of about 65-85% with minimal production of undesirable side products.
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申请公布号 |
US4745232(A) |
申请公布日期 |
1988.05.17 |
申请号 |
US19870001243 |
申请日期 |
1987.01.07 |
申请人 |
SRI INTERNATIONAL |
发明人 |
SCHMITT, ROBERT J.;ROSS, DAVID S.;WOLFE, JAMES F. |
分类号 |
C07C201/00;C07C67/00;C07C201/08;C07C205/20;C07C205/23;(IPC1-7):C07C79/28 |
主分类号 |
C07C201/00 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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