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Volumn 129, Issue 9, 2008, Pages 785-787

First example of continuous-flow reaction conditions for biomimetic reductive amination of fluorine-containing carbonyl compounds

Author keywords

1,3 Proton shift reaction; Continuous flow reactions biomimetic reductive amination; Fluorinated amino compounds; On column reactions

Indexed keywords


EID: 50549091408     PISSN: 00221139     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.jfluchem.2008.05.019     Document Type: Article
Times cited : (8)

References (76)
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    • For review see:
    • For review see:. Layer R.W. Chem. Rev. 63 (1963) 489-510
    • (1963) Chem. Rev. , vol.63 , pp. 489-510
    • Layer, R.W.1
  • 18
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    • Biomimetic oxidative deamination of amines:
    • Biomimetic oxidative deamination of amines:
  • 28
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    • Biomimetic reductive amination of carbonyl compounds:
    • Biomimetic reductive amination of carbonyl compounds:
  • 30
    • 0025062034 scopus 로고
    • references therein on previous publications
    • Ando M., and Kuzuhara H. Bull. Chem. Soc. Jpn. 63 (1990) 1925-1928 references therein on previous publications
    • (1990) Bull. Chem. Soc. Jpn. , vol.63 , pp. 1925-1928
    • Ando, M.1    Kuzuhara, H.2
  • 39
    • 50549104319 scopus 로고    scopus 로고
    • Biomimetic transamination of fluorinated aldehydes and ketones:
    • Biomimetic transamination of fluorinated aldehydes and ketones:
  • 56
    • 50549104422 scopus 로고    scopus 로고
    • Biomimetic transamination of fluorinated α-keto acids:
    • Biomimetic transamination of fluorinated α-keto acids:
  • 58
    • 50549097958 scopus 로고    scopus 로고
    • Biomimetic transamination of fluorinated β-keto acids:
    • Biomimetic transamination of fluorinated β-keto acids:
  • 63
    • 0037194189 scopus 로고    scopus 로고
    • "Double" biomimetic transamination of fluorinated acids to amines has been reported:
    • "Double" biomimetic transamination of fluorinated acids to amines has been reported:. Soloshonok V.A., Ohkura H., and Uneyama K. Tetrahedron Lett. 43 (2002) 5449-5452
    • (2002) Tetrahedron Lett. , vol.43 , pp. 5449-5452
    • Soloshonok, V.A.1    Ohkura, H.2    Uneyama, K.3
  • 64
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    • Asymmetric version of the biomimetic transamination:
    • Asymmetric version of the biomimetic transamination:
  • 75
    • 50549093569 scopus 로고    scopus 로고
    • In typical experiment, a glass column (3 × 80 cm) was charged with 200 g of silica gel (hexanes). While leaving about 1 cm of the solvent on top of silica gel, a suspension of 100 g of silica gel in dichloromethane containing 1 g of DBU was charged onto the top and allowed to percolate down to the surface of silica gel. Finally, additional 100 g of silica gel (hexanes) was added on the top of the column allowing the solvent to percolate down to the surface of silica gel completely. Using thus prepared column, a solution [10 mol % in hexanes/acetonitrile (4/1)] of fluorinated imine 13a-f was eluted through the column at the rate of 1 drop per second. UV-active fractions (detection by TLC) were collected and evaporated to afford products 14a-f (for yields, see Table 1).
    • In typical experiment, a glass column (3 × 80 cm) was charged with 200 g of silica gel (hexanes). While leaving about 1 cm of the solvent on top of silica gel, a suspension of 100 g of silica gel in dichloromethane containing 1 g of DBU was charged onto the top and allowed to percolate down to the surface of silica gel. Finally, additional 100 g of silica gel (hexanes) was added on the top of the column allowing the solvent to percolate down to the surface of silica gel completely. Using thus prepared column, a solution [10 mol % in hexanes/acetonitrile (4/1)] of fluorinated imine 13a-f was eluted through the column at the rate of 1 drop per second. UV-active fractions (detection by TLC) were collected and evaporated to afford products 14a-f (for yields, see Table 1).
  • 76
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    • The choice of DBU as a catalyst was based on our recent mechanistic studies:
    • The choice of DBU as a catalyst was based on our recent mechanistic studies:. Nagy P., Ueki H., Berbasov D.O., and Soloshonok V.A. J. Fluor. Chem. 129 (2008) 409-415
    • (2008) J. Fluor. Chem. , vol.129 , pp. 409-415
    • Nagy, P.1    Ueki, H.2    Berbasov, D.O.3    Soloshonok, V.A.4


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.