Synthesis of Hexahydrospiro[pyrazolo[3,4
<i>‐b</i>
]quinoline‐4,1′‐pyrrolo[3,2,1‐
<i>ij</i>
]quinoline‐2′,5(1
<i>H</i>
,4′H)‐diones] from 5,6‐dihydro‐4
<i>H</i>
‐pyrrolo[3,2,1‐
<i>ij</i>
]quinoline‐1,2‐dione Using Fe
<sub>3</sub>
O
<sub>4</sub>
@Cu(OH)
<sub>x</sub>
as a Nanocatalyst
作者:Mehdi M. Baradarani、Bahman Ebrahimi Saatluo、Shiva Ghabeli、Zahra Shokri、Masoumeh Shahbazi、John A. Joule
DOI:10.1002/jhet.3579
日期:2019.7
isatin, 5,6‐dihydro‐4H‐pyrrolo[3,2,1‐ij]quinoline‐1,2‐dione, undergoes three‐component, one‐pot reactions with 1‐aryl‐3‐methylpyrazole‐5‐amines and cyclohexane‐1,3‐diones producing hexacyclic spiro products, hexahydrospiro[pyrazolo[3,4‐b]quinoline‐4,1‐pyrrolo[3,2,1‐ij]quinoline‐2′,5(1H,4′H)‐diones]. Comparable spiro condensation products are also obtained using 4‐hydroxy‐2H‐1‐benzopyran‐2‐one in place
三环Isatin 5,6-dihydro-4 H-吡咯并[3,2,1- ij ]喹啉1,2-二酮与1-芳基-3-甲基吡唑-5进行三组分一锅法反应胺和环己烷-1,3-二酮生产六环螺旋产物,六氢螺并[吡唑并[3,4 -b ]喹啉-4,1-吡咯并[3,2,1- ij ]喹啉-2',5(1 H,4'H)‐diones]。使用4-羟基-2 H -1-苯并吡喃-2-酮代替环己烷-1,3-二酮也可获得类似的螺环缩合产物。