Potassium Fluoride/Basic Alumina as Far Superior Heterogeneous Catalyst for the Chemoselective Conjugate Addition of Nitroalkanes to Electron-Poor Alkenes Having Two Electron-Withdrawing Groups in α- and β-Positions
作者:Roberto Ballini、Alessandro Palmieri
DOI:10.1002/adsc.200606105
日期:2006.7
The chemoselective, conjugateaddition of nitroalkanes to electron-poor alkenes, with two electron-withdrawing groups in the α- and β-positions, can be easily performed at room temperature under solventlessconditions using potassium fluoride/basicalumina as heterogeneous catalyst.
Convenient preparations of 2-alkyl-5-oxopyrrolidine-3-carboxylic acids
作者:Anna D. Photiadou、Christos I. Stathakis、John K. Gallos
DOI:10.1002/jhet.5570450454
日期:2008.7
Reduction of the Michael addition products of anions of nitro compounds to dimethyl maleate led to the spontaneous formation of the respective 2-alkyl-5-oxopyrrolidine-3-carboxylic acid methyl esters. Conventional hydrolysis of the later gave the desired compounds.