2011
Lizbeth Juárez-Guerra, Susana Rojas-Lima,* and Heraclio López-Ruiz Addition reaction of benzylbenzylidenenamine to lithium enolates of 1,3-dioxolan-4-one: synthesis of 2-phenylisoserines ARKIVOC 2011 (ix) 354-366. Preprinted
Abstract
The synthesis of two new 2-phenylisoserines, each bearing a quaternary stereocenter is described. These compounds, which are analogs of the amino acid side chain found in taxol and taxotere, were obtained by addition of the lithium enolates of (2S,5S)-2-isopropyl-5-phenyl-1,3-dioxolan-4-one and (2S,5S)-2-tert-butyl-2-methyl-5-phenyl-1,3-dioxolan-4-one to benzylbenzylideneamine in the presence of BF3 .O(Et)2. The diastereomeric mixtures were separated in each case and the absolute configurations thereof were determined by X-ray analysis.
Diastereoselective alkylation of chiral glycinate derivatives containing the ?-phenylethyl group.
Study of the reactivity of squarylferrocenes. Addition of amines and aminoesters
Ylidaddukte der Penteltrichloride
Furocoumarins of three species of the genus Dorstenia
Stereoselective addition of allylmagnesium chloride to the CN bond of [4.3.0] boron heterobicycles
Et3B, an Efficient Mediator for Xanthate Transfer Based Radical Processes