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Volumn 3, Issue 23, 2005, Pages 4227-4232

Copper(II)-mediated resolution of α-halo carboxylic acids with chiral O,O′-dibenzoyltartaric acid: Spontaneous racemization and crystallization-induced dynamic resolution

Author keywords

[No Author keywords available]

Indexed keywords

ACETIC ACID; CATALYST SELECTIVITY; COPPER COMPOUNDS; CRYSTALLIZATION; DECOMPOSITION; HYDRATES; MOLECULAR STRUCTURE;

EID: 29144509491     PISSN: 14770520     EISSN: None     Source Type: Journal    
DOI: 10.1039/b510170k     Document Type: Article
Times cited : (15)

References (37)
  • 9
    • 0036489215 scopus 로고    scopus 로고
    • For related reviews on crystallization-induced dynamic resolution (CIDR), see: M. C. Millier and P. J. Reader, Drug Discovery Today, 2002, 7, 303;
    • (2002) Drug Discovery Today , vol.7 , pp. 303
    • Millier, M.C.1    Reader, P.J.2
  • 15
    • 29144437699 scopus 로고
    • US Pat. 5 036 156, (CA, 115: 114486)
    • M. Bouisset, and J. Radisson, US Pat. 5 036 156, 1991 (CA, 115: 114486).
    • (1991)
    • Bouisset, M.1    Radisson, J.2
  • 16
    • 29144498167 scopus 로고    scopus 로고
    • JP Pat. 200 034 256, (CA, 132: 122386)
    • O. Ko, H. Yukihiro, and K. Isao, JP Pat. 200 034 256, 2000 (CA, 132: 122386).
    • (2000)
    • Ko, O.1    Yukihiro, H.2    Isao, K.3
  • 20
    • 29144491693 scopus 로고    scopus 로고
    • note
    • 2) C, H, N, Cu: calcd, 40.67%, 2.93%, 0, 15.4%; found, 40.54%, 3.03%, 0, 15.2%.
  • 29
    • 29144522886 scopus 로고    scopus 로고
    • note
    • 1 was obtained.
  • 30
    • 29144523514 scopus 로고    scopus 로고
    • note
    • 2]·1.5 MeCN.
  • 31
    • 29144445153 scopus 로고    scopus 로고
    • note
    • This can be confirmed by the following experiment. The complex with 79.8% diastereomeric excess, which was obtained by filtration when the reaction had been conducted for 2 d, was suspended in acetonitrile, and stirred at 40°C for 5 d. HPLC analysis showed that the diastereomic excess was increased to 85.2%.
  • 32
    • 29144484578 scopus 로고    scopus 로고
    • note
    • The phenomenon that different enantiomer was obtained when different solvents were used can also be observed in the coordination-mediated resolution of mandelic acid ester (see reference 8).
  • 33
    • 29144521696 scopus 로고    scopus 로고
    • note
    • 1 (93.6% ee) was stirred in ethanol for 2 d at 40°C, HPLC analysis showed that there was only slight racemization (88.7% ee) and also no racemization was observed in ethyl acetate and toluene.
  • 34
    • 29144471003 scopus 로고    scopus 로고
    • note
    • 1 with 87.7% ee was obtained after the treatment of the complex with HCl.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.