作者:Shigehiko Sugasawa、Ryuji Tachikawa
DOI:10.1016/0040-4020(58)80042-3
日期:1958.1
The scope of Bischler-Napieralski reaction has now been extended to include acyl cyclo-hexa-1:4-dienylethylamide types, which cyclise smoothly to yield various isoquinolines after dehydrogenation. 1-(2-Nitro-3:4-dimethoxybenzyl)-3:4-dihydroisoquinoline, hitherto difficultly accessible, could be prepared and converted to rac.-apomorphine dimethyl ether.
Bischler-Napieralski反应的范围现已扩大到包括酰基环-hexa-1:4-二烯基乙酰胺类型,该类型可平滑地环化以在脱氢后生成各种异喹啉。可以制备迄今难以获得的1-(2-硝基-3:4-二甲氧基苄基)-3:4-二氢异喹啉,并将其转化为外消旋-阿扑吗啡二甲醚。