GB1183696A - Method for Preparing Chlorobenzene Thiols. - Google Patents

Method for Preparing Chlorobenzene Thiols.

Info

Publication number
GB1183696A
GB1183696A GB48769A GB48769A GB1183696A GB 1183696 A GB1183696 A GB 1183696A GB 48769 A GB48769 A GB 48769A GB 48769 A GB48769 A GB 48769A GB 1183696 A GB1183696 A GB 1183696A
Authority
GB
United Kingdom
Prior art keywords
chlorobenzene
acid
thiol
thiols
solution
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
GB48769A
Inventor
Hermann Hoffmann
Samuel F Marsocci
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.)
Hoechst AG
Original Assignee
Hoechst AG
Farbwerke Hoechst AG
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 Hoechst AG, Farbwerke Hoechst AG filed Critical Hoechst AG
Priority to GB48769A priority Critical patent/GB1183696A/en
Publication of GB1183696A publication Critical patent/GB1183696A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07C—ACYCLIC OR CARBOCYCLIC COMPOUNDS
    • C07C319/00—Preparation of thiols, sulfides, hydropolysulfides or polysulfides
    • C07C319/02—Preparation of thiols, sulfides, hydropolysulfides or polysulfides of thiols

Landscapes

  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)

Abstract

1,183,696. Chlorobenzene thiols. FARBWERKE HOECHST A.G. 3 Jan., 1969, No. 487/69. Heading C2C. A process for the manufacture of a chlorobenzene thiol which comprises adding zinc and a solution of a chlorobenzene sulphonyl chloride in chlorosulphonic acid to water or an aqueous mineral acid at a temperature of from 40‹ to 90‹ C., preferably isolating the steam-distilled thiol as the corresponding thioglycollic acid, by condensing with monochloroacetic acid to prevent the oxidation of the thiol group to the disulphide. The solution of the chlorobenzene sulphonyl chloride may be prepared in situ by reacting a chlorobenzene with chlorosulphonic acid and preferably treating this mixture with a chlorination agent, e.g. CCl 4 , PCl 3 , SOCl 2 . Examples describe the preparation of 4-chloro, 2,4- and 2,5-dichlorobenzene thiol, isolated as the corresponding thioglycollic acids.
GB48769A 1969-01-03 1969-01-03 Method for Preparing Chlorobenzene Thiols. Expired GB1183696A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB48769A GB1183696A (en) 1969-01-03 1969-01-03 Method for Preparing Chlorobenzene Thiols.

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB48769A GB1183696A (en) 1969-01-03 1969-01-03 Method for Preparing Chlorobenzene Thiols.

Publications (1)

Publication Number Publication Date
GB1183696A true GB1183696A (en) 1970-03-11

Family

ID=9705209

Family Applications (1)

Application Number Title Priority Date Filing Date
GB48769A Expired GB1183696A (en) 1969-01-03 1969-01-03 Method for Preparing Chlorobenzene Thiols.

Country Status (1)

Country Link
GB (1) GB1183696A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290886A1 (en) * 1987-05-09 1988-11-17 CASSELLA Aktiengesellschaft Process for the preparation of 2,5-dichlorophenylthioglycolic acid

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0290886A1 (en) * 1987-05-09 1988-11-17 CASSELLA Aktiengesellschaft Process for the preparation of 2,5-dichlorophenylthioglycolic acid
US4918221A (en) * 1987-05-09 1990-04-17 Cassella Ag Process for preparing 2,5-dichlorophenylthioglycollic acid

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee