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Volumn 3, Issue 15, 2001, Pages 2361-2364

Scavenging of fluorinated N,N′-dialkylureas by hydrogen binding: A novel separation method for fluorous synthesis

Author keywords

[No Author keywords available]

Indexed keywords

DRUG DERIVATIVE; ESTER; FLUOROCARBON; PEPTIDE; UREA;

EID: 0035954899     PISSN: 15237060     EISSN: None     Source Type: Journal    
DOI: 10.1021/ol016165+     Document Type: Article
Times cited : (46)

References (29)
  • 13
    • 0043041425 scopus 로고    scopus 로고
    • note
    • Three methods have been proposed to attain a homogeneous reaction medium able to dissolve slightly polar organic substrates and fluorous reactants bearing three or more perfluorinated chains: (a) Temperature-promoted fusion of toluene/perfluorohexane or similar biphases: see ref 1.
  • 15
    • 0000974143 scopus 로고    scopus 로고
    • Partially fluorinated solvents, such as benzotrifluoride (BTF), see: Ogawa, A.; Curran, D. P. J. Org. Chem. 1997, 62, 450-451.
    • (1997) J. Org. Chem. , vol.62 , pp. 450-451
    • Ogawa, A.1    Curran, D.P.2
  • 16
    • 0033574494 scopus 로고    scopus 로고
    • 2NH has been used for an automated urea synthesis as isocyanate scavenger by covalent bond formation. Linclau, B.; Sing, A. K.; Curran, D. P. J. Org. Chem. 1999, 64, 2835-2842.
    • (1999) J. Org. Chem. , vol.64 , pp. 2835-2842
    • Linclau, B.1    Sing, A.K.2    Curran, D.P.3
  • 20
    • 0041538577 scopus 로고
    • Crystalline adducts of linear oligomers of Nylon-6 precipitated from trifloroethanol solution with perfluoroglutaric acid, but not with nonfluorinated diacids. See: Aharoni, S. M.; Wasserman, E. Macromolecules 1982, 15, 20-25.
    • (1982) Macromolecules , vol.15 , pp. 20-25
    • Aharoni, S.M.1    Wasserman, E.2
  • 23
    • 0034682859 scopus 로고    scopus 로고
    • a for 4c·5a. In both solvents, no formation of complexes of higher stoichiometry than 1:1 could be detected when an excess of 5a was added. For methods of determination of association constants by NMR, see: Fielding, L. Tetrahedron 2000, 56, 6151-6170.
    • (2000) Tetrahedron , vol.56 , pp. 6151-6170
    • Fielding, L.1
  • 26
    • 0042540624 scopus 로고    scopus 로고
    • note
    • 2 phase gave the product.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.