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Synthesis 1987; 1987(8): 734-736
DOI: 10.1055/s-1987-28067
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The Application of N-Substituted Trichloroacetamides as in situ Isocyanate Generating Reagents for the Synthesis of Acylureas and Sulfonylureas

Ivanka A. Atanassova* , Jan S. Petrov, Nikola M. Mollov
  • *Institute of Organic Chemistry with Centre of Phytochemistry, BAS Laboratory for Biologically Active Substances, 4002 Plovdiv, 75 I. Nikolova St., P.O. Box 27, Bulgaria
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Publication Date:
12 September 2002 (online)

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In dimethylsulfoxide solution in the presence of excess of powdered sodium hydroxide, N-subsituted trichloroacetamides 1 are used as in situ isocyanate generating reagents which can react with carboxamides or sulfonamides 2 to afford acylureas or sulfonylureas 3.