Novel One-Pot, Three-Component Synthesis of New 2-Alkyl-5-aryl-(1<i>H</i>)-pyrrole-4-ol in Water
作者:Behzad Khalili、Pedram Jajarmi、Bagher Eftekhari-Sis、Mohammed M. Hashemi
DOI:10.1021/jo702385n
日期:2008.3.1
New 2-alkyl-5-aryl-(1H)-pyrrole-4-ol derivatives were synthesized via three-component reaction of β-dicarbonyl compounds with arylglyoxals in the presence of ammonium acetate in water at room temperature.
Synthesis of new 2-aryl-4-chloro-3-hydroxy-1<i>H</i>-indole-5,7-dicarbaldehydes<i>via</i>Vilsmeier-Haack reaction
作者:Bagher Eftekhari-Sis、Maryam Zirak、Ali Akbari、Mohammed M. Hashemi
DOI:10.1002/jhet.338
日期:——
xy‐1H‐indole‐5,7‐dicarbaldehydes were synthesized in three steps from acetophenone derivatives. By oxidation of acetophenones to aryl glyoxals using selenium dioxide and condensation with acetylacetone in the presence of ammonium acetate in water 3‐acetyl‐5‐aryl‐4‐hydroxy‐2‐methyl‐1H‐pyrrols were obtained. 2‐Aryl‐4‐chloro‐3‐hydroxy‐1H‐indole‐5,7‐dicarbaldehydes were synthesized via Vilsmeier‐Haack