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An improved method for the preparation of alkyl/arylurea derivatives using chlorocarbonylsulfenyl chloride as carbonylating agent

✍ Scribed by D. M. Manidhar, K. Uma Maheswara Rao, C. Suresh Reddy, Ch. Syamasunder, K. Adeppa, Krishna Misra


Book ID
118809712
Publisher
Springer Netherlands
Year
2012
Tongue
English
Weight
475 KB
Volume
38
Category
Article
ISSN
0922-6168

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✍ Ilona Matus; JΓ‘nos Fischer πŸ“‚ Article πŸ“… 1985 πŸ› Elsevier Science 🌐 French βš– 183 KB

1-Alkyl-B-carbolines were treated with dialkyl oxalates to give N-alkylated canthin-alkaloid derivatives in one step During the reproduction of the experiments described by Atta-ur-Rahman 1) we found that the reaction of 1-alkyl-8-carbolines (1) with excess dialkyl oxalates (2) between 155-175'C fo