Tetrahedron p. 9503 - 9516 (1992)
Update date:2022-07-29
Topics:
Hovorka
Scigel
Gunterova
Tichy
Zavada
Highly selective oxidative cross-coupling of differently substituted 2-naphthols mediated by Cu(II)-tert-butyl amine complexes is described. The 'cross'-products are obtained in good to excellent yields and the selectivity up to >90% is observed depending on the substitution of naphthol nuclei. The alternative procedures - the cross-coupling of free naphthols with CuCl(OMe) as well as the coupling of sodium naphtholates with anhydrous copper(II) chloride - were also studied. All these methods enable a simple and high-yield access to the unsymmetrically substituted binaphthols. A successful optical resolution of methyl 2,2'-dihydroxy-1,1'-binaphthalene-3-carboxylate by means of liquid chromatography on triacetylcellulose and the subsequent configurational correlation with a binaphthol derivative of known absolute configuration is reported.
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Doi:10.1021/jo00303a001
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(2011)Doi:10.1016/j.poly.2011.01.007
(2011)Doi:10.1016/S0040-4039(00)94632-X
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