WO2001083420A3 - Method of making substituted dihalo aromatic acid chlorides - Google Patents

Method of making substituted dihalo aromatic acid chlorides Download PDF

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Publication number
WO2001083420A3
WO2001083420A3 PCT/GB2001/001917 GB0101917W WO0183420A3 WO 2001083420 A3 WO2001083420 A3 WO 2001083420A3 GB 0101917 W GB0101917 W GB 0101917W WO 0183420 A3 WO0183420 A3 WO 0183420A3
Authority
WO
WIPO (PCT)
Prior art keywords
dihalo aromatic
dihalo
aromatic acid
acid chlorides
making substituted
Prior art date
Application number
PCT/GB2001/001917
Other languages
French (fr)
Other versions
WO2001083420A2 (en
Inventor
Michael J Fifolt
Michael C Savidakis
Daniel R Thielen
Ronald F Spohn
William S Derwin
David C Johnson
Sanjay Mandal
Original Assignee
Occidental Chem Co
Stephens Dinah
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 Occidental Chem Co, Stephens Dinah filed Critical Occidental Chem Co
Priority to AU52385/01A priority Critical patent/AU5238501A/en
Publication of WO2001083420A2 publication Critical patent/WO2001083420A2/en
Publication of WO2001083420A3 publication Critical patent/WO2001083420A3/en

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Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C51/00—Preparation of carboxylic acids or their salts, halides or anhydrides
    • C07C51/347—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups
    • C07C51/363—Preparation of carboxylic acids or their salts, halides or anhydrides by reactions not involving formation of carboxyl groups by introduction of halogen; by substitution of halogen atoms by other halogen atoms

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  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Engineering & Computer Science (AREA)
  • Oil, Petroleum & Natural Gas (AREA)
  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

A three-step method of making a substituted dihalo aromatic acid chloride is disclosed. A substituted aromatic compound having the general formula is halogenated to produce a mixture of corresponding dihalo and trihalo aromatic compounds, where R is COOH or COOR', R' is alkyl from C1 to C6, each R1 is independently selected from alkyl or alkoxy from C1 to C6 with no more than a single R1 group in the ortho position, and n is 1 or 2. Ortho halogens are selectively dehalogenated to produce the corresponding monohalo and dihalo aromatic compounds. The dihalo aromatic compound is converted into the corresponding acid chloride.
PCT/GB2001/001917 2000-05-02 2001-05-01 Method of making substituted dihalo aromatic acid chlorides WO2001083420A2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
AU52385/01A AU5238501A (en) 2000-05-02 2001-05-01 Method of making substituted dihalo aromatic acid chlorides

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
US56162100A 2000-05-02 2000-05-02
US09/561,621 2000-05-02

Publications (2)

Publication Number Publication Date
WO2001083420A2 WO2001083420A2 (en) 2001-11-08
WO2001083420A3 true WO2001083420A3 (en) 2002-06-13

Family

ID=24242730

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/GB2001/001917 WO2001083420A2 (en) 2000-05-02 2001-05-01 Method of making substituted dihalo aromatic acid chlorides

Country Status (2)

Country Link
AU (1) AU5238501A (en)
WO (1) WO2001083420A2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108752229A (en) * 2018-07-06 2018-11-06 山东润博生物科技有限公司 A kind of synthetic method of propanil

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080378A (en) * 1975-11-04 1978-03-21 Dynamit Nobel Aktiengesellschaft Process for the preparation of carboxylic acid chlorides of the benzene series
JPS5782337A (en) * 1980-11-11 1982-05-22 Mitsubishi Gas Chem Co Inc Preparation of pivaloyl chloride and aromatic carboxylic acid chloride
JPH04117344A (en) * 1990-09-05 1992-04-17 Res Assoc Util Of Light Oil Production of aromatic carboxylic acid chloride
EP0825173A1 (en) * 1996-08-22 1998-02-25 Rohm And Haas Company Method for preparing aromatic compounds
US6201152B1 (en) * 1999-11-05 2001-03-13 Occidental Chemical Corporation Method of making 3,5-dichloro-p-toluoyl chloride

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4080378A (en) * 1975-11-04 1978-03-21 Dynamit Nobel Aktiengesellschaft Process for the preparation of carboxylic acid chlorides of the benzene series
JPS5782337A (en) * 1980-11-11 1982-05-22 Mitsubishi Gas Chem Co Inc Preparation of pivaloyl chloride and aromatic carboxylic acid chloride
JPH04117344A (en) * 1990-09-05 1992-04-17 Res Assoc Util Of Light Oil Production of aromatic carboxylic acid chloride
EP0825173A1 (en) * 1996-08-22 1998-02-25 Rohm And Haas Company Method for preparing aromatic compounds
US6201152B1 (en) * 1999-11-05 2001-03-13 Occidental Chemical Corporation Method of making 3,5-dichloro-p-toluoyl chloride

Non-Patent Citations (2)

* Cited by examiner, † Cited by third party
Title
DATABASE WPI Section Ch Week 198226, Derwent World Patents Index; Class B05, AN 1982-53661E, XP002194994 *
DATABASE WPI Section Ch Week 199222, Derwent World Patents Index; Class E14, AN 1992-180120, XP002194993 *

Also Published As

Publication number Publication date
AU5238501A (en) 2001-11-12
WO2001083420A2 (en) 2001-11-08

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