Synthesis of chiral 1,2-diamines from α-pinene and their use in asymmetric nitroaldol reaction
摘要:
Chiral diamines with C (1) and C (2) symmetry have been synthesized from 2-hydroxypinan-3-one and tested as ligands in Cu-catalyzed asymmetric nitroaldol reaction of nitromethane with 4-nitrobenzaldehyde.
condensation of the racemic salicylic aldehydes with (R)-phenylglycinol. Finally, the absolute configurations of two of the salicylic aldehydes were established by X-ray crystallography. For this purpose, the (1-phenylethyl)-substituted salicylic aldehyde was condensed with L-valinamide, and the relative configuration of the resulting Schiff base diastereomer 12 was determined. In the second case, the racemic
Separation of racemic salycylaldehydes containing isobornyl substituent using (R)-1-phenylethylamine
作者:E. V. Buravlev、I. Yu. Chukicheva、F. M. Dolgushin、A. V. Kuchin
DOI:10.1134/s1070428010050088
日期:2010.5
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.
Synthesis of chiral 1,2-diamines from α-pinene and their use in asymmetric nitroaldol reaction
作者:I. A. Dvornikova、E. V. Buravlev、K. Yu. Suponitskii、I. Yu. Chukicheva、A. V. Kutchin
DOI:10.1134/s1070428015040041
日期:2015.4
Chiral diamines with C (1) and C (2) symmetry have been synthesized from 2-hydroxypinan-3-one and tested as ligands in Cu-catalyzed asymmetric nitroaldol reaction of nitromethane with 4-nitrobenzaldehyde.
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.