A practical method for resolution of the optical isomers of 2,2′-dihydroxy-1,1′-binaphthalene

Synthesis (Germany)

Volumn 1990, Issue 3, 1990, Pages 222-223

  Tamai, Yasufumi ^a   Heung Cho, Park ^b   Iizuka, Kenji ^a   Okamura, Atsuko ^a   Miyano, Sotaro ^a  

^a TOHOKU UNIVERSITY   (Japan)

^b Chungju Technical Junior College ^*  (South Korea)

Author keywords

[No Author keywords available]

Indexed keywords

EID: 85081237034     PISSN: 00397881     EISSN: 1437210X     Source Type: Journal    
DOI: 10.1055/s-1990-26838     Document Type: Article

References (20)

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13. In this paper, axial chirality is denoted by prefix "a" as in aS or aR.
14. Brussee, J.; Groenendijk, J. L. G.; te Koppele, J. M.; Jansen, A. C. A. Tetrahedron 1985, 41, 3313.
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16. On the mole basis, the ratio of the price of 3 (E. Merck, Darmstadt) to cinchonine (Aldrich Chemical Co.) is about 1/10.
17. 12 However, our procedure is operationally more simple than theirs; crystallization from EtOH/EtOAc needs seed crystals, and the precipitated (+) (+) and/or (+) (-) salt requires repeated recrystallizations to obtain high optical purity.
18. Cf., Truesdale, L. K. Org. Synth. 1988, 67, 13.
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