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Synthesis of novel chiral Schiff base ligands and their application in asymmetric nitro aldol Henry reaction    
Yazarlar
Mehmet Çolak
Dicle Üniversitesi, Türkiye
Tarık Aral
Batman Üniversitesi, Türkiye
Halil Hoşgören
Dicle Üniversitesi, Türkiye
Prof. Dr. Nadir DEMİREL Prof. Dr. Nadir DEMİREL
Dicle Üniversitesi, Türkiye
Özet
Chiral Schiff-bases prepared from chiral amino alcohols catalyze the enantioselective Henry (nitro aldol) reaction between nitromethane and p-nitrobenzaldehyde in the presence of Cu(OTf)2 and Zn(OTf)2. Zn(OTf)2 promoted the reaction yield, while Cu(OTf)2 promoted the enantiomeric excess. The highest enantioselectivities were observed with ligand 3 (44% ee) and ligand 5 (47% ee). © 2007 Elsevier Ltd. All rights reserved.
Anahtar Kelimeler
Makale Türü Özgün Makale
Makale Alt Türü SSCI, AHCI, SCI, SCI-Exp dergilerinde yayımlanan tam makale
Dergi Adı Tetrahedron:Asymmetry
Dergi ISSN 0957-4166
Dergi Tarandığı Indeksler SCI-Expanded
Makale Dili İngilizce
Basım Tarihi 01-2007
Cilt No 18
Sayı 9
Sayfalar 1129 / 1133
Doi Numarası 10.1016/j.tetasy.2007.04.025