Synthesis of Ureas from CO2
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Ureas are an important class of bioactive organic compounds in organic chemistry and exist widely in natural products, agricultural pesticides, uron herbicides, pharmaceuticals. Even though urea itself has been synthesized from CO2 and ammonia for a long time, the selective and efficient synthesis of substituted ureas is still challenging due to the difficulty of dehydration processes. Efficient and economic fixation of CO2 is of great importance in solving the problems of resource shortages, environmental issues, global warming, etc. During recent decades, chemists have developed different catalytic systems to synthesize ureas from CO2 and amines. Herein, we focus on catalytic synthesis of ureas using CO2 and amines.
KeywordsCarbon dioxide Synthesis of ureas Catalysis Dehydration Carbamates
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