GB1068535A - Method of producing p-and m- nitrobenzoic acids - Google Patents

Method of producing p-and m- nitrobenzoic acids

Info

Publication number
GB1068535A
GB1068535A GB1702064A GB1702064A GB1068535A GB 1068535 A GB1068535 A GB 1068535A GB 1702064 A GB1702064 A GB 1702064A GB 1702064 A GB1702064 A GB 1702064A GB 1068535 A GB1068535 A GB 1068535A
Authority
GB
United Kingdom
Prior art keywords
mixture
group
acids
nitro
nitrobenzoic
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
GB1702064A
Inventor
Pavel Mikhailovich Kochergin
Ludmilla Sergeevna Blinova
Rimma Mikhailovna Titkova
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.)
VNI KHIM FARMATSEVTICHESKY I
Original Assignee
VNI KHIM FARMATSEVTICHESKY I
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 VNI KHIM FARMATSEVTICHESKY I filed Critical VNI KHIM FARMATSEVTICHESKY I
Priority to GB1702064A priority Critical patent/GB1068535A/en
Publication of GB1068535A publication Critical patent/GB1068535A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C205/00—Compounds containing nitro groups bound to a carbon skeleton
    • C07C205/49—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups
    • C07C205/57—Compounds containing nitro groups bound to a carbon skeleton the carbon skeleton being further substituted by carboxyl groups having nitro groups and carboxyl groups bound to carbon atoms of six-membered aromatic rings of the 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
    • C07C201/12—Preparation of nitro compounds by reactions not involving the formation of nitro groups
    • 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
    • C07C201/14—Preparation of nitro compounds by formation of nitro groups together with reactions not involving the formation of nitro groups
    • 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
    • C07C201/16—Separation; Purification; Stabilisation; Use of additives

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

Meta- and para-nitrobenzoic acids are prepared by oxidizing a mixture of isomers of aromatic compounds having both a -NO2 group and a single group incorporating oxygen or halogen oxidizable to a -COOH group attached to the ring in the m- or p-position with respect to the -NO2 group, with diluted nitric acid to a mixture of isomeric nitrobenzoic acids and fractionally crystallizing the mixture of acids or salts thereof. The preferred crystallization procedure is based on the low solubility of p-nitrobenzoic acid in aqueous isopropanol and the low solubility of calcium m-nitro-benzoate in water. In examples the following starting materials are used: nitro derivatives of phenylmethyl carbinol, alphachloroethyl-benzene or acetophenone, nitric esters of nitrophenylmethyl carbinols and mixed nitro compounds obtained as a by-product in the preparation of p-nitroacetophenone.
GB1702064A 1964-04-24 1964-04-24 Method of producing p-and m- nitrobenzoic acids Expired GB1068535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1702064A GB1068535A (en) 1964-04-24 1964-04-24 Method of producing p-and m- nitrobenzoic acids

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1702064A GB1068535A (en) 1964-04-24 1964-04-24 Method of producing p-and m- nitrobenzoic acids

Publications (1)

Publication Number Publication Date
GB1068535A true GB1068535A (en) 1967-05-10

Family

ID=10087774

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1702064A Expired GB1068535A (en) 1964-04-24 1964-04-24 Method of producing p-and m- nitrobenzoic acids

Country Status (1)

Country Link
GB (1) GB1068535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001079151A1 (en) * 2000-04-12 2001-10-25 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2001079151A1 (en) * 2000-04-12 2001-10-25 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers
US6900349B2 (en) 2000-04-12 2005-05-31 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitrol benzyl alcohols, esters and/or ethers
US7094923B2 (en) 2000-04-12 2006-08-22 Bayer Aktiengesellschaft Method for producing substituted nitro benzoic acids by oxidation of corresponding nitro toluenes, nitro benzyl alcohols, esters and/or ethers

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