869116-46-1Relevant academic research and scientific papers
Synthesis and characterization of some novel copper(II) complexes with an optically active Betti base
Bhatt, Shardul,Trivedi, Bhavna
scheme or table, p. 15 - 22 (2012/05/20)
Novel Cu(II) complexes with racemic as well as optically pure 1-(α-amino benzyl)-2-napthol, commonly known as Betti base, and its derivative 1-(α-pyrrolidinyl benzyl)-2-napthol have been synthesized. The general composition of all the isolated complexes, as determined by elemental analysis, thermal analysis and FAB mass spectra, is found to be Cu(L-H) 2. The coordination of the ligand with metal has been confirmed by IR and ESR spectra of the complexes. The CD spectra of complexes with the S-form of the ligands exhibit a mirror image relationship with the CD spectra of the complexes with the corresponding R-form of the ligands. The Cu(II) complex with racemic Betti base has been characterized structurally. It crystallizes in the monoclinic space group P21/c. The complexes display quasi reversible redox behavior due to the Cu(II)/Cu(I) reduction process.
Acid promoted CIDT for the deracemization of dihydrocinnamic aldehydes with Betti's base
Rosini, Goffredo,Paolucci, Claudio,Boschi, Francesca,Marotta, Emanuela,Righi, Paolo,Tozzi, Francesco
scheme or table, p. 1747 - 1757 (2011/02/28)
Racemic α-epimerizable and unfunctionalized aldehydes have been converted into enantiomerically enriched mixtures through a sequence of (i) a conversion into the diastereoisomeric 3-substituted 1-phenyl-2,3-dihydro-1H- naphtho[1,2-e][1,3]oxazines by reaction with the (R)- or (S)-1-(α- aminobenzyl)-2-naphthol (Betti's base), (ii) an acid promoted crystallization-induced diastereoisomer transformation (CIDT), and (iii) a clean cleavage of the dihydro-1,3-naphthoxazinic ring of the enriched diastereoisomer, easily collected by filtration, allowing the recovery of the enantiomerically enriched aldehydes and the chiral auxiliary.
An efficient kinetic resolution of racemic betti base based on an enantioselective N,O-deketalization
Dong, Yanmei,Li, Rui,Lu, Jun,Xu, Xuenong,Wang, Xinyan,Hu, Yuefei
, p. 8617 - 8620 (2007/10/03)
An efficient kinetic resolution of racemic Betti base with L-(+)-tartaric acid in acetone was developed based on a novel enantioselective N,O-deketalization, by which the enantiopure R- and S-enantiomers of Betti base were obtained as the corresponding N,
