An Efficient One-Pot, Four-Component Synthesis of {[(1H-1,2,3-Triazol-4-yl)methoxy]phenyl}-1H-pyrazolo[1,2-b]phthalazine-5,10-dione Derivatives
作者:Laleh Torkian、Minoo Dabiri、Peyman Salehi、Morteza Bararjanian
DOI:10.1002/hlca.201000428
日期:2011.8
The 1‐[(1H‐1,2,3‐Triazol‐4‐yl)methoxy]phenyl}‐1H‐pyrazolo[1,2‐b]phthalazine‐5,10‐dione derivatives 5 were synthesized by a simple and efficient method, i.e., by the four‐component, one‐pot condensation reaction of phthalohydrazide 4, a (propargyloxy)benzaldehyde 1, an active methylene compound 3 (malononitrile or ethyl cyanoacetate), and an azide 2 in the presence of Cu(OAc)2/sodium L‐ascorbate as
1-[((1 H -1,2,3-三唑-4-基)甲氧基]苯基} -1 H-吡唑并[1,2 - b ]酞嗪-5,10-二酮衍生物5由a合成一种简单有效的方法,即在铜存在下,通过邻苯二甲酰肼4,(炔丙氧基)苯甲醛1,活性亚甲基化合物3(丙二腈或氰基乙酸乙酯)和叠氮化物2的四组分一锅缩合反应。(OAC)2 /钠大号-ascorbate作为催化剂和1-甲基-1- ħ -咪唑三氟乙酸盐([HMIM](CF 3(COO))作为离子液体介质,收率良好至优异(方案1)。