Copper-Catalyzed Aza-Diels–Alder Reaction and Halogenation: An Approach To Synthesize 7-Halogenated Chromenoquinolines
作者:Xiaoqiang Yu、Jiao Wang、Zhanwei Xu、Yoshinori Yamamoto、Ming Bao
DOI:10.1021/acs.orglett.6b01065
日期:2016.5.20
A new halogenation method to construct halogen-substituted quinoline moieties is described. The Cu-catalyzed intramolecular aza-Diels–Alder reaction and halogenation reaction proceeded smoothly under mild conditions to produce the corresponding 7-chloro-6H-chromeno[4,3-b]quinolines and 7-chloro-6H-thiochromeno[4,3-b]quinolines in satisfactory yields.
描述了构建卤素取代的喹啉部分的新的卤化方法。铜催化的分子内氮杂-Diels-Alder反应和卤化反应在温和条件下平稳进行,生成了相应的7-氯-6 H-氧化铬[4,3- b ]喹啉和7-氯-6 H-硫代氧化铬[4] ,3- b ]喹啉具有令人满意的产率。
A novel photochemical cyclisation of 4-chloro-3-(N-Aryliminomethyl) (2H)benzopyrans and benzothiopyrans
作者:K.S. Swaminathan、R. Sai Ganesh、C.S. Venkatachalam、K.K. Balasubramanian
DOI:10.1016/s0040-4039(00)88193-9
日期:1983.1
Photolysis of 4-chloro-3-(N-Aryliminomethyl) (2H)benzopyrans and benzothiopyrans, 1a - g, yielded the respective quinolides 3a - g.