Acid-Base-Catalysed Condensation Reaction in Water: Isoxazolines and Isoxazoles from Nitroacetates and Dipolarophiles
作者:Elena Trogu、Claudia Vinattieri、Francesco De Sarlo、Fabrizio Machetti
DOI:10.1002/chem.201102264
日期:2012.2.13
Base‐catalysed condensation reactions of nitroacetic esters with dipolarophiles to give isoxazole derivatives proceed faster, and often with higher yields, in the presence of water than in organic solvents such as chloroform. Kinetic profiles show that induction times are greatly reduced when the reaction is performed “in water” or “on water”. Any specificity of the base related to H‐bonding ability