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Expired
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GB12886/62A
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F Hoffmann La Roche AG
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F Hoffmann La Roche AG
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Publication of GB933368ApublicationCriticalpatent/GB933368A/en
C07D217/00—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems
C07D217/02—Heterocyclic compounds containing isoquinoline or hydrogenated isoquinoline ring systems with only hydrogen atoms or radicals containing only carbon and hydrogen atoms, directly attached to carbon atoms of the nitrogen-containing ring; Alkylene-bis-isoquinolines
Abstract
In a process for the preparation of isoquinoline derivatives of the formulae <FORM:0933368/IV(a)/1> and <FORM:0933368/IV(a)/2> wherein A- represents an ion, hal represents a halogen atom and n represents 1, 2 or 3, a compound of the formula <FORM:0933368/IV(a)/3> is condensed with a halosubstituted benzaldehyde and the resulting condensation product hydrogenated, if desired. 1,2-Dimethyl- 6,7-dimethoxy- 3,4-dihydro-isoquinolinium iodide, bromide and methyl sulphate are prepared by reacting the tertiary base with methyl iodide, bromide and sulphate, respectively.
GB12886/62A1961-04-141962-04-04Process for the manufacture of ú ú¾ú´quinoline derivatives
ExpiredGB933368A
(en)
A procedure for the preparation of aluminum, bismuto and 8-hydroxyquinoline salts of pamoic acid (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 1,2-diphenyl-3,5-dioxo-4- (3'-oxobutil) pirazolidine. (Machine-translation by Google Translate, not legally binding)
A procedure for the preparation of 5,6-dimetilindan-1,3-diona and its pharmaceutically acceptable salts. (Machine-translation by Google Translate, not legally binding)