Ionic liquids as efficient catalysts for synthesis of phosphorylated dialkyl succinates containing phthalazin-1-one moieties

محورهای موضوعی : Iranian Journal of Catalysis

Ziba Tavakoli ¹ (Department of Chemistry, Islamic Azad University, Science and Research Branch, Ponak Tehran, Iran.)
Elnaz Ghasemi ² (Department of Chemistry, Islamic Azad University, Science and Research Branch, Ponak Tehran, Iran.)
Issa Yavari ³ (Department of Chemistry, Islamic Azad University, Science and Research Branch, Ponak Tehran, Iran.)

تاریخ دریافت : 1392/10/30 تاریخ پذیرش : 1392/12/15 تاریخ انتشار : 1393/03/11

کلید واژه: Ionic Liquid, Phosphorylation, Organocatalysis, 2H-Phthalazin-1-one, Acetylenic ester,

چکیده مقاله :

Ionic liquids such as 1,3-dialkylimidazolium salts make excellent catalysts and solvents for synthesis of dialkyl 2-(dialkoxyphosphoryl)-3-(1-oxo-1-H-phthalazin-2-yl)succinates from 2H-phthalazin-1-one, dialkyl acetylenedicarboxylates, and trialkyl phosphites. Under similar conditions, triphenyl phosphite led to dialkyl 2-(diphenoxyphosphoryl)-3-(1-oxo-1-H-phthalazin-2-yl)succinates. The ionic liquid was readily recycled and can be reused four times without significant loss of activity or mass.

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