32437-49-3Relevant articles and documents
Catalyst-Free Synthesis of Benzofuran Derivatives from Cascade Reactions between Nitroepoxides and Salicylaldehydes
Ranjbari, Mohammad A.,Tavakol, Hossein
, p. 4756 - 4762 (2021/04/02)
Different benzofuran derivatives are synthesized via a catalyst-free reaction between nitroepoxides and salicylaldehydes. In the employed methodology, K2CO3 and DMF have been used at 110 °C, and the reactions were completed after 12 h in 33-84% yields. Th
Synthesis of heterocycles with MF/Al2O3 base-systems: 2-arylbenzofuranes and 2,3-diarylisoquinolin-1(2H)-ones
Hellwinkel,Goke
, p. 1135 - 1141 (2007/10/02)
2-Benzyloxybenzaldehydes, -acetophenones and -benzophenones substituted in the benzyl part with electron-withdrawing groups, cyclize easily to 2-arylbenzofuranes by using a standardized KF- or CsF-Al2O3 base system. An efficient one-pot synthesis for 2,3-diarylisoquinolin-1(2H)-ones is possible by reacting a variety of arene carbaldehyde anils with phthalides under the same reaction conditions.