GB1191088A - Process for Replacing Aromatically Bound Halogen Atoms - Google Patents

Process for Replacing Aromatically Bound Halogen Atoms

Info

Publication number
GB1191088A
GB1191088A GB1816569A GB1816569A GB1191088A GB 1191088 A GB1191088 A GB 1191088A GB 1816569 A GB1816569 A GB 1816569A GB 1816569 A GB1816569 A GB 1816569A GB 1191088 A GB1191088 A GB 1191088A
Authority
GB
United Kingdom
Prior art keywords
replacing
halogen atoms
aromatically bound
bound halogen
halogenothiophenes
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
GB1816569A
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.)
Consortium fuer Elektrochemische Industrie GmbH
Original Assignee
Consortium fuer Elektrochemische Industrie GmbH
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 Consortium fuer Elektrochemische Industrie GmbH filed Critical Consortium fuer Elektrochemische Industrie GmbH
Publication of GB1191088A publication Critical patent/GB1191088A/en
Expired legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/26—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with hetero atoms or with carbon atoms having three bonds to hetero atoms with at the most one bond to halogen, e.g. ester or nitrile radicals, directly attached to ring carbon atoms
    • C07D333/28—Halogen atoms
    • C—CHEMISTRY; METALLURGY
    • C07—ORGANIC CHEMISTRY
    • C07D—HETEROCYCLIC COMPOUNDS
    • C07D333/00—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom
    • C07D333/02—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings
    • C07D333/04—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom
    • C07D333/06—Heterocyclic compounds containing five-membered rings having one sulfur atom as the only ring hetero atom not condensed with other rings not substituted on the ring sulphur atom with only hydrogen atoms, hydrocarbon or substituted hydrocarbon radicals, directly attached to the ring carbon atoms
    • C07D333/08—Hydrogen atoms or radicals containing only hydrogen and carbon atoms

Abstract

1,191,088. Dehalogenating halogenothiophenes. CONSORTIUM FUR ELEKTROCHEMISCHE INDUSTRIE G.m.b.H. 9 April, 1969 [13 April, 1968], No. 18165/69. Heading C2C. Halogenothiophenes are dehalogenated by reacting them with H 2 + Group VIII noble metal catalyst at 20-400‹ C. and 1-100 atm. (gauge). In examples, tetrachloro- and 2,3,4- trichlorothiophenes are dechlorinated to give mainly 2,3,4-tri, and 2,3- and 3,4-dichlorothiophenes, but monochlorothiophene and thiophene and thiophene itself are also formed.
GB1816569A 1968-04-13 1969-04-09 Process for Replacing Aromatically Bound Halogen Atoms Expired GB1191088A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19681768209 DE1768209B1 (en) 1968-04-13 1968-04-13 Process for the reductive exchange of chlorine for hydrogen on the thiophene ring

Publications (1)

Publication Number Publication Date
GB1191088A true GB1191088A (en) 1970-05-06

Family

ID=5699642

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1816569A Expired GB1191088A (en) 1968-04-13 1969-04-09 Process for Replacing Aromatically Bound Halogen Atoms

Country Status (3)

Country Link
DE (1) DE1768209B1 (en)
FR (1) FR2007447A1 (en)
GB (1) GB1191088A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100520A (en) * 1989-02-06 1992-03-31 Hoechst Aktiengesellschaft Process for the preparation of thiophene derivatives

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2582645B1 (en) * 1985-05-31 1988-09-16 Rhone Poulenc Spec Chim PROCESS FOR THE PURIFICATION OF CHLORO-2 PROPIONIC ACID AND / OR ITS ESTERS
DE3537288A1 (en) * 1985-10-19 1987-04-23 Hoechst Ag METHOD FOR PRODUCING 2.3 DICHLORTHIOPHEN

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5100520A (en) * 1989-02-06 1992-03-31 Hoechst Aktiengesellschaft Process for the preparation of thiophene derivatives

Also Published As

Publication number Publication date
DE1768209B1 (en) 1972-01-05
FR2007447A1 (en) 1970-01-09

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Legal Events

Date Code Title Description
PS Patent sealed
PLNP Patent lapsed through nonpayment of renewal fees