GB1345469A - Process for the nitration of phenolics - Google Patents
Process for the nitration of phenolicsInfo
- Publication number
- GB1345469A GB1345469A GB2768772A GB2768772A GB1345469A GB 1345469 A GB1345469 A GB 1345469A GB 2768772 A GB2768772 A GB 2768772A GB 2768772 A GB2768772 A GB 2768772A GB 1345469 A GB1345469 A GB 1345469A
- Authority
- GB
- United Kingdom
- Prior art keywords
- hno
- nitration
- acid mixture
- aqueous acid
- phenolic material
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired
Links
Classifications
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
-
- C—CHEMISTRY; METALLURGY
- C07—ORGANIC CHEMISTRY
- C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
- C07C201/00—Preparation of esters of nitric or nitrous acid or of compounds containing nitro or nitroso groups bound to a carbon skeleton
- C07C201/06—Preparation of nitro compounds
Landscapes
- Chemical & Material Sciences (AREA)
- Organic Chemistry (AREA)
- Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
Abstract
1345469 Nitration of phenols HERCULES Inc 13 June 1972 [30 June 1971] 27687/72 Heading C2C A process for the nitration of phenolics comprises introducing a nitratable phenolic material into an aqueous acid mixture containing HNO 2 and HNO 3 while maintaining the resulting reaction temperature within the range of from -15‹ to +15‹ C. and at a rate permitting substantially immediate conversion of intermediately formed nitrosophenolic to nitrophenolic product and comprising recovering the nitrophenolic product, said aqueous acid mixture prior to the introduction of said phenolic material into said reaction containing 0À2-3 moles per litre of HNO 2 and having a mole ratio of HNO 2 to total phenolic material introduced into said reaction within the range of 0À4 : 1- 1 : 1 is characterized in that said HNO 2 and HNO 3 . are the only acid ingredients in said aqueous acid mixture and that said aqueous acid mixture contains 2À3-10 moles per litre of said HNO 3 and contains said HNO 3 in a mole ratio to total phenolic material introduced into said reaction within the range of 4: 1-5 : 1. The examples describe the nitration of phenol, meta-cresol and 2-sec-butyl phenol.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US15859371A | 1971-06-30 | 1971-06-30 |
Publications (1)
Publication Number | Publication Date |
---|---|
GB1345469A true GB1345469A (en) | 1974-01-30 |
Family
ID=22568849
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB2768772A Expired GB1345469A (en) | 1971-06-30 | 1972-06-13 | Process for the nitration of phenolics |
Country Status (6)
Country | Link |
---|---|
JP (1) | JPS5637215B1 (en) |
CA (1) | CA964674A (en) |
DE (1) | DE2231157C2 (en) |
FR (1) | FR2144395A5 (en) |
GB (1) | GB1345469A (en) |
IT (1) | IT965860B (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108164422A (en) * | 2017-12-28 | 2018-06-15 | 大连泰瑞海铭化工集团有限公司 | The production method of o-sec-butyl -4,6- dinitrophenol |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2357508A1 (en) * | 1976-07-09 | 1978-02-03 | Hercules Inc | Para-nitro-meta-cresol from meta-and para-cresol mixtures - by nitration with aq. nitrous and nitric acids |
FR2638741B1 (en) * | 1988-11-07 | 1990-12-28 | Rhone Poulenc Chimie | PROCESS FOR THE PREPARATION OF NITROPHENOLS |
Family Cites Families (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3519693A (en) * | 1965-11-24 | 1970-07-07 | American Cyanamid Co | Nitration process for phenolic compounds |
CH504403A (en) * | 1966-11-24 | 1971-03-15 | American Cyanamid Co | Process for the preparation of p-nitrophenol and p-nitro-m-cresol |
US3510527A (en) * | 1967-05-18 | 1970-05-05 | Hercules Inc | Preparation of p-nitrophenols |
-
1972
- 1972-05-26 CA CA143,114A patent/CA964674A/en not_active Expired
- 1972-06-13 GB GB2768772A patent/GB1345469A/en not_active Expired
- 1972-06-26 DE DE19722231157 patent/DE2231157C2/en not_active Expired
- 1972-06-28 IT IT5121472A patent/IT965860B/en active
- 1972-06-29 JP JP6453472A patent/JPS5637215B1/ja active Pending
- 1972-06-30 FR FR7223670A patent/FR2144395A5/fr not_active Expired
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN108164422A (en) * | 2017-12-28 | 2018-06-15 | 大连泰瑞海铭化工集团有限公司 | The production method of o-sec-butyl -4,6- dinitrophenol |
Also Published As
Publication number | Publication date |
---|---|
IT965860B (en) | 1974-02-11 |
FR2144395A5 (en) | 1973-02-09 |
DE2231157A1 (en) | 1973-01-11 |
JPS5637215B1 (en) | 1981-08-29 |
CA964674A (en) | 1975-03-18 |
DE2231157C2 (en) | 1982-12-23 |
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Legal Events
Date | Code | Title | Description |
---|---|---|---|
PS | Patent sealed | ||
PCNP | Patent ceased through non-payment of renewal fee |