Green Chemistry

Solventless selective phosgene-free N-carbonylation of N-heteroaromatics (pyrrole, indole, carbazole) under mild conditions

M Carafa, F Iannone, V Mele, E Quaranta

文献索引：Carafa, Marianna; Iannone, Francesco; Mele, Valentina; Quaranta, Eugenio Green Chemistry, 2012 , vol. 14, # 12 p. 3377 - 3385

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被引用次数: 7

摘要

N-Heteroaromatics HetNH, such as pyrrole (1), indole (2) and carbazole (3), have been selectively N-carbonylated by a direct reaction with diphenyl carbonate (DPC), used as an environmental friendly carbonyl active species in place of toxic and hazardous phosgene. The carbonylation reaction can be effectively catalyzed by 1, 8-diazabicyclo [5.4. 0] undec-7- ene (DBU), which can act as a base catalyst by activating the HetNH substrate, and as a ...