Synthesis and Application of Novel Chiral Noncyclic Crown Ether Bisoxazoline and Bisthiazoline Ligands |
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| Authors: | Zhanyue Wang Wenting Hua |
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| Affiliation: | (1) School of Pharmacy, Wenzhou Medical College, Wenzhou, 325035, PRC;(2) College of Chemistry and Molecular Engineering, Peking University, Beijing, 100871, PRC |
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| Abstract: | A series of novel C2-symmetrical chiral bis(oxazoline) and bis(thiazoline) ligands containing noncyclic crown ether type was synthesized. Their structures were determined by IR spectra, 1H nuclear magnetic resonance (NMR), 13C NMR, and elemental analysis. The copper complexes of the above ligands were used in catalytic asymmetrical Henry reactions. Enantioselectivities up to 33% were observed. Translated from HuaXue TongBao, 2005, (2) (in Chinese) |
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| Keywords: | synthesis bis(oxazoline) bis(thiazoline) asymmetrical catalysis Henry reaction |
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