1985
DOI: 10.1002/ardp.19853180603
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Selektive katalytische Hydrierungen und Hydrogenolysen, 4. Mitt. Darstellung von 1‐Benzylisochinolinen

Abstract: Im Benzylrest substituierte 1-Benzylisochinoline 4 werden durch hydrolytische Spaltung der leicht zuganglichen 1,2-Dihydro-Verbindungen 3 erhalten. Selective Catalytic Hydrogenations and Hydrogenolyses, IV": Preparation of 1-Benzylisoquinolines1-Benzylisoquinolines, substituted at the benzyl group, are prepared by hydrolytic cleavage of the 1,2-dihydroisoquinolines 3.In einer vorlaufigen Mitt.') hatten wir berichtet, daR 1-Benzylisochinoline des Typs 4 grundsatzlich zu den 5,6,7,8-Tetrahydro-Derivaten 5 hydrie… Show more

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Cited by 7 publications
(2 citation statements)
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“…a) E = CN, X = CH: The hydrolytic cleavage of the Reissert educt 74a spontaneously yields the 8-imino compound 76a [37], whereas the educts 74b-74d bearing an additional methyl function in position 3 of the heterocyclic core firstly provide the rearomatized 1-benzylisoquinolines 75b-75d. The subsequent ring closure has to be achieved with methyl magnesiumiodide in a separat step giving the products 76b-Scheme 11.…”
Section: Detailed Applicationsmentioning
confidence: 99%
“…a) E = CN, X = CH: The hydrolytic cleavage of the Reissert educt 74a spontaneously yields the 8-imino compound 76a [37], whereas the educts 74b-74d bearing an additional methyl function in position 3 of the heterocyclic core firstly provide the rearomatized 1-benzylisoquinolines 75b-75d. The subsequent ring closure has to be achieved with methyl magnesiumiodide in a separat step giving the products 76b-Scheme 11.…”
Section: Detailed Applicationsmentioning
confidence: 99%
“…2-(chloromethyl)benzonitrile (1b), 2-(bromomethyl)-benzonitrile (1a), and methyl 2-(bromomethyl)benzoate (8). The latter is frequently used in various hetero-cyclizations, including those for obtaining isoquinoline derivatives [6-9], while nitriles 1a,b are rarely used for this purpose and the schemes for converting them are more complex [10][11][12][13]. The relatively simple method of synthesis of azolo [b]isoquinolines proposed by us enables the preparation of their previously unavailable amino and hydroxy derivatives.…”
mentioning
confidence: 99%