ES288110A1 - Procedure for the preparation of 1-formilated derivatives of colchicines and tiocolchines (Machine-translation by Google Translate, not legally binding)
- Google Patents
Procedure for the preparation of 1-formilated derivatives of colchicines and tiocolchines (Machine-translation by Google Translate, not legally binding)
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Sanofi Aventis France
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Roussel Uclaf SA
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Priority claimed from FR898044Aexternal-prioritypatent/FR1330908A/en
Application filed by Roussel Uclaf SAfiledCriticalRoussel Uclaf SA
Publication of ES288110A1publicationCriticalpatent/ES288110A1/en
Low-Molecular Organic Synthesis Reactions Using Catalysts
(AREA)
Organic Low-Molecular-Weight Compounds And Preparation Thereof
(AREA)
Abstract
Process for the preparation of 1-formylated derivatives of colchicines and thiocolchicins of the general formula: ** (See formula) ** wherein R1 represents hydrogen or a lower alkyl, R2 an acyl and Z is an -O-alkanyl, an -S-alkyl or an (See formula) -alcohyl, characterized in that 1,1-dichloro methyl ether is reacted on a corresponding colchicine or thiocolchicine, operating in an appropriate solvent and in the presence of a catalyst chosen from the group consisting of stannic chloride and aluminum chloride, and then water is added and the obtained 1-formylated derivative is isolated. (Machine-translation by Google Translate, not legally binding)
ES288110A1962-05-181963-05-17Procedure for the preparation of 1-formilated derivatives of colchicines and tiocolchines (Machine-translation by Google Translate, not legally binding)
ExpiredES288110A1
(en)
Procedure for the preparation of 1-formilated derivatives of colchicines and tiocolchines (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of compounds of 2- (2º-hydroxy-3º-propenyl-phenyl) -benzotriazol (Machine-translation by Google Translate, not legally binding)
Procedure for the preparation of 1-formilated derivatives of colchicines and tiocolchines (Machine-translation by Google Translate, not legally binding)