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.
Diastereomeric C-glycosyloxanthrones from picramnia antidesma
Synthesis and Structures of some Lithium and Sodium (Aminoalcoholato)hydrido Aluminates
Et3, and efficient Mediator for Xanthate Transfer Based Radical Processes.
Diastereoselective alkylation of chiral glycinate derivatives containing the ?-phenylethyl group.
Facile synthesis of 1,3,6-oxadiazepines from 2,2?-(1,2-ethanediyldiimino)bisphenols