ES249159A1 - A METHOD FOR THE PREPARATION OF SUBSTITUTED THIAXANTHENS IN POSITION 9 - Google Patents

A METHOD FOR THE PREPARATION OF SUBSTITUTED THIAXANTHENS IN POSITION 9

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Publication number
ES249159A1
ES249159A1 ES0249159A ES249159A ES249159A1 ES 249159 A1 ES249159 A1 ES 249159A1 ES 0249159 A ES0249159 A ES 0249159A ES 249159 A ES249159 A ES 249159A ES 249159 A1 ES249159 A1 ES 249159A1
Authority
ES
Spain
Prior art keywords
reacting
formula
preparation
isolated
acid
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
ES0249159A
Other languages
Spanish (es)
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.)
H Lundbeck AS
Original Assignee
Kefalas AS
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 Kefalas AS filed Critical Kefalas AS
Publication of ES249159A1 publication Critical patent/ES249159A1/en
Expired legal-status Critical Current

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  • Nitrogen And Oxygen Or Sulfur-Condensed Heterocyclic Ring Systems (AREA)

Abstract

Method for the preparation of thiaxanthenes of the formula: ** (See formula) ** wherein R represents hydrogen, halogen or a methoxyl group and salts thereof by the addition of acid, characterized by reacting thiaxanthones of the formula: ** (See formula) ** wherein R has the above meaning, with an allylmagnesium halide, by subjecting the thus formed Grignard compound to hydrolysis and reacting the resulting carbinol with a hydrogen halide and then reacting the halogenated compound formed with dimethylamine, after which, the thiaxanthene formed is isolated from the reaction mixture in the form of the free base or in the form of a salt by the addition of acid and, in the case where R represents halogen or a methoxyl group, the trans isomer is isolated by crystallization fractionated (Machine-translation by Google Translate, not legally binding)
ES0249159A 1958-05-09 1959-05-05 A METHOD FOR THE PREPARATION OF SUBSTITUTED THIAXANTHENS IN POSITION 9 Expired ES249159A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DK174658A DK88606C (en) 1958-05-09 1958-05-09 Process for the preparation of thiaxanthenes substituted in the 9-position or their acid addition salts.

Publications (1)

Publication Number Publication Date
ES249159A1 true ES249159A1 (en) 1959-10-01

Family

ID=8107733

Family Applications (1)

Application Number Title Priority Date Filing Date
ES0249159A Expired ES249159A1 (en) 1958-05-09 1959-05-05 A METHOD FOR THE PREPARATION OF SUBSTITUTED THIAXANTHENS IN POSITION 9

Country Status (2)

Country Link
DK (1) DK88606C (en)
ES (1) ES249159A1 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
BR112014003567A2 (en) 2011-08-16 2018-08-14 Mt Sinai School Of Medicine compound use of a compound and pharmaceutical composition

Also Published As

Publication number Publication date
DK88606C (en) 1960-02-29

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