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JPS55164651A - Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride - Google Patents

Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride

Info

Publication number
JPS55164651A
JPS55164651A JP7321779A JP7321779A JPS55164651A JP S55164651 A JPS55164651 A JP S55164651A JP 7321779 A JP7321779 A JP 7321779A JP 7321779 A JP7321779 A JP 7321779A JP S55164651 A JPS55164651 A JP S55164651A
Authority
JP
Japan
Prior art keywords
alpha
formula
toluoyl chloride
trichloro
compound
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.)
Granted
Application number
JP7321779A
Other languages
Japanese (ja)
Other versions
JPS6251254B2 (en
Inventor
Tsumoru Kodaira
Kunihiro Yabutani
Hitoshi Kurono
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.)
Nihon Nohyaku Co Ltd
Original Assignee
Nihon Nohyaku Co Ltd
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 Nihon Nohyaku Co Ltd filed Critical Nihon Nohyaku Co Ltd
Priority to JP7321779A priority Critical patent/JPS55164651A/en
Publication of JPS55164651A publication Critical patent/JPS55164651A/en
Publication of JPS6251254B2 publication Critical patent/JPS6251254B2/ja
Granted legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P20/00—Technologies relating to chemical industry
    • Y02P20/50—Improvements relating to the production of bulk chemicals
    • Y02P20/52—Improvements relating to the production of bulk chemicals using catalysts, e.g. selective catalysts

Landscapes

  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)
  • Low-Molecular Organic Synthesis Reactions Using Catalysts (AREA)

Abstract

PURPOSE: To obtain the title compound in high yield without forming by-products, by photochlorination of α,α-dichloro-o-toluoyl chloride in the presence of a hexaalkylphosphoramide or tetraalkylurea.
CONSTITUTION: α,α-Dichloro-o-toluoyl chloride (formula IV) or its photochlorination product (formula III) is photochlorinated in the presence of 0.1W5wt% of a hexaalkylphosphoramide, e.g. hexamethylphosphoramide, or a tetraalkylurea, e.g. tetramethylurea, in the absence or presence of a solvent, e.g. CCl4, at 50W200°C, preferably 110W140°C, to give α,α,α,-trichloro-o-toluoyl chloride (formula I). The formation of the compound (formula II)which is a main photochlorination product of the compound of formula IV can be suppressed by the hexaalkylphosphoramide to give only the objective compound of formula I.
COPYRIGHT: (C)1980,JPO&Japio
JP7321779A 1979-06-11 1979-06-11 Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride Granted JPS55164651A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7321779A JPS55164651A (en) 1979-06-11 1979-06-11 Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7321779A JPS55164651A (en) 1979-06-11 1979-06-11 Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride

Publications (2)

Publication Number Publication Date
JPS55164651A true JPS55164651A (en) 1980-12-22
JPS6251254B2 JPS6251254B2 (en) 1987-10-29

Family

ID=13511768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7321779A Granted JPS55164651A (en) 1979-06-11 1979-06-11 Preparation of alpha,alpha,alpha-trichloro-o-toluoyl chloride

Country Status (1)

Country Link
JP (1) JPS55164651A (en)

Also Published As

Publication number Publication date
JPS6251254B2 (en) 1987-10-29

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