GB792158A - Improvements relating to methyl-4-beta-halogenoethyl-5-thiazoles and salts thereof - Google Patents

Improvements relating to methyl-4-beta-halogenoethyl-5-thiazoles and salts thereof

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Publication number
GB792158A
GB792158A GB31342/55A GB3134255A GB792158A GB 792158 A GB792158 A GB 792158A GB 31342/55 A GB31342/55 A GB 31342/55A GB 3134255 A GB3134255 A GB 3134255A GB 792158 A GB792158 A GB 792158A
Authority
GB
United Kingdom
Prior art keywords
beta
methyl
salts
halogenoethyl
thiazoles
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
GB31342/55A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Publication of GB792158A publication Critical patent/GB792158A/en
Expired legal-status Critical Current

Links

Abstract

The invention comprises the methane sulphonates, and the alpha- and beta-camphosulphonates of 4-methyl-5-beta-halogenoethylthiazoles, and a process for the preparation of 4 - methyl - 5 - beta - halogenoethyl - thiazoles and their hydrohalide salts by reacting thionyl chloride or phosphorus bromide at a temperature of - 10 DEG to 0 DEG C. with 4-methyl-5-betahydroxyethyl-thiazole in chloroform and crystallizing the hydrohalide salt formed and, if desired, converting it into the free base, e.g. by neutralizing an aqueous solution of the hydrohalide salt with sodium bicarbonate. The 4 - methyl - 5 - beta - halogenoethyl - thiazoles may be converted into the methane sulphonates and the optically active or racemic alpha or beta camphosulphonate salts by treating a solution in acetone of the free base with the required acids. In the examples, 4-methyl - 5 - beta - chloroethyl - thiazole and the hydrochloride, methane sulphonate and optically active and racemic alpha- and beta-camphosulphonate salts thereof, and 4-methyl 5-beta - bromoethyl - thiazole and the hydrobromide salt thereof are prepared.
GB31342/55A 1955-09-28 1955-11-02 Improvements relating to methyl-4-beta-halogenoethyl-5-thiazoles and salts thereof Expired GB792158A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
FR792158X 1955-09-28

Publications (1)

Publication Number Publication Date
GB792158A true GB792158A (en) 1958-03-19

Family

ID=9229138

Family Applications (1)

Application Number Title Priority Date Filing Date
GB31342/55A Expired GB792158A (en) 1955-09-28 1955-11-02 Improvements relating to methyl-4-beta-halogenoethyl-5-thiazoles and salts thereof

Country Status (1)

Country Link
GB (1) GB792158A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031457A (en) * 1955-09-28 1962-04-24 Charonnat Solange Costes Salts of 4-methyl-5 (beta-halogenoethyl)-thiazole and certain sulfonic acids

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3031457A (en) * 1955-09-28 1962-04-24 Charonnat Solange Costes Salts of 4-methyl-5 (beta-halogenoethyl)-thiazole and certain sulfonic acids

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