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Oxidative formylation and chloromethylation in Vilsmeier reactions of O- and S-heterocyclic ketones

โœ Scribed by Paul R. Giles; Charles M. Marson


Book ID
104203943
Publisher
Elsevier Science
Year
1991
Tongue
French
Weight
399 KB
Volume
47
Category
Article
ISSN
0040-4020

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## Abstract An improved method for the preparation of 3โ€formylโ€1,4โ€dimethylcarbazole, a key intermediate in the synthesis of ellipticine, is presented. Conditions of the Vilsmeierโ€Haack reaction have been modified to facilitate the production of 3โ€formylโ€1,4โ€dimethylcarbazole as a major product lea