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The Electrochemical Oxidation of Aromatic Ethers. Part 12 The anodic oxidation of 1,4-dihydro-6,7-dimethoxy-4-(3,4-dimethoxybenzyl)-2-methylisoquinolin-3(2-H)-one and attempts to synthesise 2-acyl-4-benzyl-1,2,3,4-tetrahydroisoquinolines through the C-4 alkylation of tricarbonyl η6-1,2,3,4-tetrahydroisoquinoline chromium (0) complexes

✍ Scribed by Malcolm Sainsbury; Richard S. Todd

Publisher
Elsevier Science
Year
1992
Tongue
French
Weight
816 KB
Volume
48
Category
Article
ISSN
0040-4020

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✦ Synopsis

We have reinvestigated the anodic oxidation of 1,4~hydro-6.7-d;methoxy-4-(3.4-dimethoxy~l)-2-me~y~~u~o~-3(2H)~ne and found it to yield a new product 2.3.7.9-tetramethoxy-ll-(N-methylscetamido)i~[~,e]~cloh~~m-5~e. In order to investigate reactions of this rype 2-acyl-6.7-~imethoxy-4_(3,4-dimethoxy~l)-l,23.4-teaahy~isoquinolines were required. Attempts to synth&se these compounds from the chromium uicerbonyl complexes of 2-scyl-6.7dimethoxy-l.23.4-tehahydroisoqu have failed, leading instead to 2-acyLl,4-dibenzyl-6.7-dimethoxy-1.2.3.4-teeahys

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