Microwave Promoted One-Pot Synthesis of Some Novel<i>N</i>-Aryl Isoquinoline Derivatives
作者:Freddy H. Havaldar、Ganesh B. Mule、Bhushan V. Dabholkar
DOI:10.1002/jhet.1105
日期:2013.7
chemical synthesis of condensed 4‐substituted furo[2,3‐c]isoquinoline‐1,5(2H,4H)‐diones 3 and 5‐substituted‐2,3‐dihydro‐1H‐pyrano[2,3‐c]isoquinoline‐1,6(5H)‐diones 4 involving the condensation of a variety of alkanoyl chlorides with 2‐arylisoquinoline‐1,3‐diones 2 in the presence of base and aprotic solvent is described for the first time. By contrast, the facile ring opening reaction of furo[2,3‐c]isoquinoline‐1
在微波辐射下,全邻苯二甲酸酐1与不同的芳族胺反应生成N取代的均苯二甲酰亚胺2。稠合的4个取代的呋喃[2,3 - c ]异喹啉-1,5 (2 H,4 H)-二酮3和5个取代的-2,3-二氢-1H-吡喃的快速微波辅助化学合成[2,3 - c ]异喹啉-1,6 (5 H)-二酮4涉及各种链烷酰氯与2-芳基异喹啉-1,3-二酮2的缩合反应首次描述了在碱和非质子溶剂存在下的溶液。相比之下,呋喃[2,3 - c ]异喹啉-1,5(2 H,4 H)-dione 3与Vilsmeier-Haack试剂在微波辐射下的开环反应很容易产生α-β不饱和羧醛5。这种新颖,干净的一锅法方法具有反应时间短,后处理简便的特点,可用于生成某些新颖的缩合异喹啉衍生物。