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Hon SW, Li CH, Kuo JH, et al. Catalytic asymmetric coupling of 2-naphthols by chiral tridentate oxovanadium (IV) complexes. Org Lett. 2001;3(6):869-72doi: 10.1021/ol015505o.
Hon, S. W., Li, C. H., Kuo, J. H., Barhate, N. B., Liu, Y. H., Wang, Y., & Chen, C. T. (2001). Catalytic asymmetric coupling of 2-naphthols by chiral tridentate oxovanadium (IV) complexes. Organic letters, 3(6), 869-72. https://doi.org/10.1021/ol015505o
Hon, S W, et al. "Catalytic asymmetric coupling of 2-naphthols by chiral tridentate oxovanadium (IV) complexes." Organic letters vol. 3,6 (2001): 869-72. doi: https://doi.org/10.1021/ol015505o
Hon SW, Li CH, Kuo JH, Barhate NB, Liu YH, Wang Y, Chen CT. Catalytic asymmetric coupling of 2-naphthols by chiral tridentate oxovanadium (IV) complexes. Org Lett. 2001 Mar 22;3(6):869-72. doi: 10.1021/ol015505o. PMID: 11263903.
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Org Lett. 2001 Mar 22;3(6):869-72. doi: 10.1021/ol015505o.

Catalytic asymmetric coupling of 2-naphthols by chiral tridentate oxovanadium (IV) complexes.

Organic letters

S W Hon, C H Li, J H Kuo, N B Barhate, Y H Liu, Y Wang, C T Chen

Affiliations

  1. Department of Chemistry, National Taiwan Normal University, and Instrumentation Center, College of Science, National Taiwan University, Taipei, Taiwan, R.O.C.

PMID: 11263903 DOI: 10.1021/ol015505o

Abstract

A series of chiral oxovanadium(IV) complexes derived from tridentate N-3,5-substituted and N-3,4-benzo- and N-5,6-benzo-salicylidene-alpha-amino acids can serve as efficient catalysts for the enantioselective oxidative couplings of various 3-, 6-, and 7-substituted 2-naphthols under O(2). The best scenario involves the use of a vanadyl complex arising from 2-hydroxy-1-naphthaldehyde and valine (or phenylalanine) in CCl(4), leading to BINOLs in good yields (75-100%) and with enantioselectivities of up to 68%.

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