Diversified facile synthesis of benzimidazoles, quinazolin-4(3H)-ones and 1,4-benzodiazepine-2,5-diones via palladium-catalyzed transfer hydrogenation/condensation cascade of nitro arenes under microwave irradiation†,10.1039/C4RA15765F

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Lactoyl-CoA 全氟丁基戊烷白叶藤碱全氟己基辛烷新白叶藤碱壳寡糖特色专题-生物多肽

Diversified facile synthesis of benzimidazoles, quinazolin-4(3H)-ones and 1,4-benzodiazepine-2,5-diones via palladium-catalyzed transfer hydrogenation/condensation cascade of nitro arenes under microwave irradiation†

Kaicheng Zhu,Jian-Hong Hao,Cheng-Pan Zhang,Jiajun Zhang,Yiqing Feng,Hua-Li Qin

RSC Advances Pub Date : 01/06/2015 00:00:00 , DOI:10.1039/C4RA15765F

Abstract

A highly efficient diversified methodology for preparation of benzimidazole, quinazolin-4(3H)-ones and 1,4-benzodiazepine-2,5-diones is established using a palladium-catalyzed transfer hydrogenation (CTH)/condensation cascade of o-nitroaniline and o-nitrobenzamides in a triethylamine–formic acid azeotropic mixture (2 : 5) under microwave irradiation.