Separation of racemic salycylaldehydes containing isobornyl substituent using (R)-1-phenylethylamine
摘要:
Racemic salicylaldehydes containing isobornyl substituent were separated by their conversion into diastereomers by the reaction with (R)-1-phenylethylamine. The absolute configuration of the intermediate Schiff bases and separated aldehyde eneatiomers was established by XRD analysis.
New chiral Schiff bases derived from (+)- and (−)-α-pinenes in the metal complex catalyzed asymmetric oxidation of sulfides
作者:E. A. Koneva、K. P. Volcho、D. V. Korchagina、N. I. Komarova、A. I. Kochnev、N. F. Salakhutdinov、A. G. Tolstikov
DOI:10.1007/s11172-008-0017-8
日期:2008.1
New chiral Schiff bases were derivedfrom (+)- and (−)-α-pinenes for the first time. Coordinated to vanadium ions, they can be used as ligands in catalytic oxidation of sulfides into chiral sulfoxides. Conditions for the asymmetric oxidation of thioanisole to methyl phenyl sulfoxide in optical purity up to 32% were found. Variation of substituents in the ligand has a significant effect not only on
Simple Resolution of Racemic Salicylic Aldehydes Having an Isobornyl Substituent
作者:Evgeny V. Buravlev、Irina Y. Chukicheva、Aleksandr V. Kutchin
DOI:10.1080/00397910902792648
日期:2009.9.18
Abstract The resolution of the racemic salicylic aldehydes with isobornyl fragment 2 via diastereomer formation with (R)-1-phenylethylamine has been carried out.