GB1028912A - Improved process for the preparation of 2-halothiobenzamides - Google Patents

Improved process for the preparation of 2-halothiobenzamides

Info

Publication number
GB1028912A
GB1028912A GB500563A GB500563A GB1028912A GB 1028912 A GB1028912 A GB 1028912A GB 500563 A GB500563 A GB 500563A GB 500563 A GB500563 A GB 500563A GB 1028912 A GB1028912 A GB 1028912A
Authority
GB
United Kingdom
Prior art keywords
mixture
halothiobenzamides
preparation
triethylamine
general formula
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
GB500563A
Inventor
John Yates
Ernest Haddock
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.)
Shell Research Ltd
Original Assignee
Shell Research 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 Shell Research Ltd filed Critical Shell Research Ltd
Priority to GB500563A priority Critical patent/GB1028912A/en
Publication of GB1028912A publication Critical patent/GB1028912A/en
Expired legal-status Critical Current

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  • Organic Low-Molecular-Weight Compounds And Preparation Thereof (AREA)

Abstract

The invention comprises the preparation of 2-halothiobenzamides of the general formula <FORM:1028912/C2/1> a tautomeric isothiobenzamide or a mixture thereof, which comprises reacting the corresponding 2-halobenzaldeoxime ester of the general formula <FORM:1028912/C2/2> in which X is a halogen atom, Z is a halogen atom, a hydrocarbyl group or a hydrocarbylthio group, R is an aliphatic carboxylic acid radical preferably containing 1-4 C atoms and x=1, 2, 3 or 4, with hydrogen sulphide in the presence of an organic base, e.g. a secondary or tertiary aliphatic amine or a heterocyclic nitrogenous base such as piperidine, morpholine, ethanolamine and triethylamine. In an example 2,6-dichlorothiobenzamide is prepared by mixing 2,6-dichlorobenzaldoxime acetate, triethylamine and ethanol and passing in H2S for six hours after which the reaction mixture was poured into a mixture of ice water to precipitate the end product.
GB500563A 1963-02-07 1963-02-07 Improved process for the preparation of 2-halothiobenzamides Expired GB1028912A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB500563A GB1028912A (en) 1963-02-07 1963-02-07 Improved process for the preparation of 2-halothiobenzamides

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB500563A GB1028912A (en) 1963-02-07 1963-02-07 Improved process for the preparation of 2-halothiobenzamides

Publications (1)

Publication Number Publication Date
GB1028912A true GB1028912A (en) 1966-05-11

Family

ID=9787944

Family Applications (1)

Application Number Title Priority Date Filing Date
GB500563A Expired GB1028912A (en) 1963-02-07 1963-02-07 Improved process for the preparation of 2-halothiobenzamides

Country Status (1)

Country Link
GB (1) GB1028912A (en)

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