引用本文:
Amir Khojastehnezhad, Farid Moeinpour, Abolghasem Davoodnia. PPA-SiO2 catalyzed efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation under solvent-free conditions[J]. Chinese Chemical Letters,
2011, 22(7): 807-810.
doi:
10.1016/j.cclet.2010.12.051
Citation: Amir Khojastehnezhad, Farid Moeinpour, Abolghasem Davoodnia. PPA-SiO2 catalyzed efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation under solvent-free conditions[J]. Chinese Chemical Letters, 2011, 22(7): 807-810. doi: 10.1016/j.cclet.2010.12.051
Citation: Amir Khojastehnezhad, Farid Moeinpour, Abolghasem Davoodnia. PPA-SiO2 catalyzed efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation under solvent-free conditions[J]. Chinese Chemical Letters, 2011, 22(7): 807-810. doi: 10.1016/j.cclet.2010.12.051
PPA-SiO2 catalyzed efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation under solvent-free conditions
摘要:
Silica gel-supported polyphosphoric acid (PPA-SiO2) was found to be an efficient catalyst for the one-pot four-component Hantzsch condensation reaction of aryl aldehydes, dimedone, ethyl acetoacetate and ammonium acetate to afford the corresponding polyhydroquinoline derivatives in high yields. The main advantages of the present approach are short reaction times, clean reaction profiles, simple experimental and workup procedures.
English
PPA-SiO2 catalyzed efficient synthesis of polyhydroquinoline derivatives through Hantzsch multicomponent condensation under solvent-free conditions
Abstract:
Silica gel-supported polyphosphoric acid (PPA-SiO2) was found to be an efficient catalyst for the one-pot four-component Hantzsch condensation reaction of aryl aldehydes, dimedone, ethyl acetoacetate and ammonium acetate to afford the corresponding polyhydroquinoline derivatives in high yields. The main advantages of the present approach are short reaction times, clean reaction profiles, simple experimental and workup procedures.
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