GB1345469A - Process for the nitration of phenolics - Google Patents

Process for the nitration of phenolics

Info

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
Application number
GB2768772A
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hercules LLC
Original Assignee
Hercules LLC
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Hercules LLC filed Critical Hercules LLC
Publication of GB1345469A publication Critical patent/GB1345469A/en
Expired legal-status Critical Current

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.
GB2768772A 1971-06-30 1972-06-13 Process for the nitration of phenolics Expired GB1345469A (en)

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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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)

* Cited by examiner, † Cited by third party
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

Cited By (1)

* Cited by examiner, † Cited by third party
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