Facile Access to Benzothiazole-Containing Pyrrolo[1,2-<i>a</i>]quinolines and Pyrrolo[2,1-<i>a</i>]isoquinolines<i>via</i>Nitrogen Ylides
作者:Kamal M. Dawood、Eman A. Ragab、Nabila A. Khedr
DOI:10.1002/jccs.200900170
日期:2009.12
Quinoline and isoquinoline react with 2‐(bromoacetyl)benzothiazole (1) in dry benzene to give the corresponding quinolinium and isoquinolinium salts 2 and 10 which undergo base‐mediated [3+2] 1,3‐dipolar cycloaddition with some acetylene and ethylene derivatives to give the corresponding benzothiazole‐containing pyrrolo[1,2‐a]quinoline and pyrrolo[2,1‐a]isoquinoline derivatives.
喹啉和异喹啉与2-(溴乙酰基)苯并噻唑(1)在干燥的苯中反应,得到相应的喹啉盐和异喹啉盐2和10,它们经过碱介导的[3 + 2] 1,3-偶极环加成反应并带有一些乙炔和乙烯衍生物得到相应的含苯并噻唑的吡咯并[1,2- a ]喹啉和吡咯并[2,1- a ]异喹啉衍生物。