Iodine-mediated one-pot synthesis of C-3 acylated indolizines from pyridines, aryl methyl ketones and acrylate derivatives
作者:Youlai Fang、Lisheng He、Weidong Pan、Yuzhu Yang
DOI:10.1016/j.tet.2019.05.058
日期:2019.7
reaction from pyridines, aryl methyl ketones and electron deficient acrylates has been accomplished in a “one-pot” manner, which provides a straightforward and efficient access to C-3 acylated indolizines. The key intermediate of N-ylides is hypothesized to be generated in situ from pyridines and (hetero)aryl methyl ketones in the presence of iodine. This method has been applied in the synthesis of two
One-pot synthesis of indolizine via 1,3-dipolar cycloaddition using a sub-equivalent amount of K<sub>2</sub>Cr<sub>2</sub>O<sub>7</sub> as an efficient oxidant under base free conditions
作者:Chao Wang、Huayou Hu、Juanfang Xu、Weiqiu Kan
DOI:10.1039/c5ra06019b
日期:——
X = Cl or Br; EWG1, EWG2 = electron withdrow group, one-pot reaction, 29 examples, yields from moderate to high, gram scale-up potential confirmed.
X = 氯或溴;EWG1,EWG2 = 电子吸引基团,一锅法反应,29个例子,产率从中等到高,克级放大潜力得到确认。
Amberlite–IRA-402 (OH) ion exchange resin mediated synthesis of indolizines, pyrrolo [1,2-a] quinolines and isoquinolines: Antibacterial and antifungal evaluation of the products
作者:Abhijit Hazra、Shyamal Mondal、Arindam Maity、Subhendu Naskar、Pritam Saha、Rupankar Paira、Krishnendu B. Sahu、Priyankar Paira、Soma Ghosh、Chandrima Sinha、Amalesh Samanta、Sukdeb Banerjee、Nirup B. Mondal
DOI:10.1016/j.ejmech.2011.02.066
日期:2011.6
A number of indolizines and pyrrolo[1,2-a]quinolines/isoquinolines were prepared from phenacyl pyridinium, quinolinium and isoquinolinium salts derived fromthe reaction of the heterocycles with 2-bromo acetophenone with alkynes and alkenes using amberlite–IRA-402 (OH) ion exchange resin as the base. Antibacterial and antifungal studies were carried out against thirteen bacterial and four fungal strains
Iodine-promoted synthesis of acylindolizine derivatives from acetylenecarboxylates and pyridinium, isoquinolinium, or quinolinium ylides
作者:Juanjuan Liu、Peiyun Yan、Yan Li、Zhengquan Zhou、Weijian Ye、Juan Yao、Cunde Wang
DOI:10.1007/s00706-013-1120-6
日期:2014.4
AbstractAn iodine-promoted synthesis of acylindolizinecarboxylates via 1,3-dipolar cycloaddition of nitrogen ylides with acetylenecarboxylates and subsequent aromatization for the generation of a wide range of structurally interesting, pharmacologically and photoelectrically significant compounds is reported. Only readily available materials, mild conditions, and operationally trivial reaction protocols