1402911-67-4Relevant articles and documents
A convenient synthesis of 2-arylthiochromen-4-ones (thioflavones) by iodine-mediated cyclization of 3-aryl-1-[2-(1,1-dimethylethylsulfanyl)phenyl] prop-2-en- 1-ones
Kobayashi, Kazuhiro,Kobayashi, Akihiro,Ezaki, Kosuke
, p. 1997 - 2004 (2012/09/08)
A convenient two-step synthesis of 2-arylthiochromen-4-ones (thioflavones) beginning with 1-[2-(1,1-dimethylethylsulfanyl)phenyl]ethanones is described. Thus, 3-aryl-1-[2-(1,1-dimethylethylsulfanyl)phenyl]prop-2-en-1- ones were prepared by the condensation of 1-[2-(1,1- dimethylethylsulfanyl)phenyl] ethanones with aromatic aldehyde in the presence of sodium hydroxide, and were treated with iodine in refluxing N-methylpyrrolidin-2-one (NMP) or propanenitrile to afford the desired products in moderate to fair yields.