DK162642C - PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID - Google Patents

PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID

Info

Publication number
DK162642C
DK162642C DK056391A DK56391A DK162642C DK 162642 C DK162642 C DK 162642C DK 056391 A DK056391 A DK 056391A DK 56391 A DK56391 A DK 56391A DK 162642 C DK162642 C DK 162642C
Authority
DK
Denmark
Prior art keywords
acid
thiotetronic acid
procedure
preparation
thiotetronic
Prior art date
Application number
DK056391A
Other languages
Danish (da)
Other versions
DK162642B (en
DK56391D0 (en
DK56391A (en
Inventor
Thomas Meul
Leander Tenud
Original Assignee
Lonza 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 Lonza Ag filed Critical Lonza Ag
Publication of DK56391D0 publication Critical patent/DK56391D0/en
Publication of DK56391A publication Critical patent/DK56391A/en
Publication of DK162642B publication Critical patent/DK162642B/en
Application granted granted Critical
Publication of DK162642C publication Critical patent/DK162642C/en

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
    • C07D333/30—Hetero atoms other than halogen
    • C07D333/32—Oxygen atoms

Abstract

1. Process for preparing thiotetronic acid, characterized in that 4-chloro-4-chloromethyloxetane-2-one is directly reacted with hydrogen sulfide in the presence of an amine to thiotetronic acid or prior to the isolation of the thiotetronic acid the reaction mixture is reacted with ketene and the reaction product is reacted with a mineral acid to obtain the thiotetronic acid.
DK056391A 1985-01-16 1991-03-27 PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID DK162642C (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CH19285 1985-01-16
CH192/85A CH663206A5 (en) 1985-01-16 1985-01-16 METHOD FOR PRODUCING THIOTETRONIC ACID.

Publications (4)

Publication Number Publication Date
DK56391D0 DK56391D0 (en) 1991-03-27
DK56391A DK56391A (en) 1991-03-27
DK162642B DK162642B (en) 1991-11-25
DK162642C true DK162642C (en) 1992-04-13

Family

ID=4181346

Family Applications (2)

Application Number Title Priority Date Filing Date
DK017886A DK162766C (en) 1985-01-16 1986-01-15 PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID
DK056391A DK162642C (en) 1985-01-16 1991-03-27 PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID

Family Applications Before (1)

Application Number Title Priority Date Filing Date
DK017886A DK162766C (en) 1985-01-16 1986-01-15 PROCEDURE FOR THE PREPARATION OF THIOTETRONIC ACID

Country Status (7)

Country Link
EP (1) EP0189096B1 (en)
JP (1) JPS6236375A (en)
AT (1) ATE41929T1 (en)
CA (2) CA1264472A (en)
CH (1) CH663206A5 (en)
DE (1) DE3662688D1 (en)
DK (2) DK162766C (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH667655A5 (en) * 1986-09-24 1988-10-31 Lonza Ag METHOD FOR PRODUCING 4-ALKOXY-2 (5H) THIOPHENONES.
DE10119423A1 (en) 2001-04-20 2002-10-24 Bayer Ag New cyanoimino- or nitroimino-substituted azole derivatives or analogs, useful as pesticides, e.g. insecticides, acaricides, nematocides, ectoparasiticides or antifouling agents

Also Published As

Publication number Publication date
EP0189096B1 (en) 1989-04-05
DK162642B (en) 1991-11-25
CA1264472A (en) 1990-01-16
CH663206A5 (en) 1987-11-30
DK17886A (en) 1986-07-17
DK162766C (en) 1992-04-27
DK56391D0 (en) 1991-03-27
JPS6236375A (en) 1987-02-17
ATE41929T1 (en) 1989-04-15
EP0189096A1 (en) 1986-07-30
DE3662688D1 (en) 1989-05-11
CA1267905A (en) 1990-04-17
DK162766B (en) 1991-12-09
DK17886D0 (en) 1986-01-15
DK56391A (en) 1991-03-27

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Legal Events

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PBP Patent lapsed