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Volumn , Issue 1, 2008, Pages 0116-0118

Synthesis of sulfoximidoyl-substituted triazoles by huisgen 1,3-dipolar cycloaddition

Author keywords

Azide; Cycloaddition; Huisgen; Sulfoximines; Triazole

Indexed keywords

ALKYNYL GROUP; AZIDE; SULFOXIDE; SULFOXIMINE; TRIAZOLE; UNCLASSIFIED DRUG;

EID: 38549117767     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-1000837     Document Type: Article
Times cited : (5)

References (38)
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    • (c) Reggelin, M.; Zur, C. Synthesis 2000, 1.
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    • For a selection of recent patents emphasizing this point, see: a, WO 037800 A1, 2005; Schering AG
    • For a selection of recent patents emphasizing this point, see: (a) Luecking, U.; Krüger, M.; Jautelat, R.; Siemeister, G. WO 037800 A1, 2005; Schering AG.
    • Luecking, U.1    Krüger, M.2    Jautelat, R.3    Siemeister, G.4
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    • Luecking, U. EP 1 710 246 A1, 2006; Schering AG.
    • (d) Luecking, U. EP 1 710 246 A1, 2006; Schering AG.
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    • Luecking, U.; Bader, B.; Siemeister, G. EP 1 803 723 A1, 2007; Bayer Schering Pharma.
    • (e) Luecking, U.; Bader, B.; Siemeister, G. EP 1 803 723 A1, 2007; Bayer Schering Pharma.
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    • Zhu, Y.; Rogers, R. B.; Huang, Y. X. US 228027 A1, 2005; Dow Agroscience.
    • (g) Zhu, Y.; Rogers, R. B.; Huang, Y. X. US 228027 A1, 2005; Dow Agroscience.
  • 25
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    • For regioselective syntheses and applications of triazoles, see: a, Katritzky, A. R, Rees, C. W, Scriven, E. F. V, Eds, Pergamon: Oxford UK
    • For regioselective syntheses and applications of triazoles, see: (a) Butler, R. N. In Comprehensive Heterocyclic Chemistry, Vol. 4; Katritzky, A. R.; Rees, C. W.; Scriven, E. F. V., Eds.; Pergamon: Oxford UK, 1996, 121.
    • (1996) Comprehensive Heterocyclic Chemistry , vol.4 , pp. 121
    • Butler, R.N.1
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    • For recently developed alternative imination protocols, see: a
    • For recently developed alternative imination protocols, see: (a) Okamura, H.; Bolm, C. Org. Lett. 2004, 6, 1305.
    • (2004) Org. Lett , vol.6 , pp. 1305
    • Okamura, H.1    Bolm, C.2
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    • Refs 6 and 7
    • (d) Refs 6 and 7.
  • 36
    • 38549085552 scopus 로고    scopus 로고
    • In the reactions reported here, racemic sulfoximines were used
    • In the reactions reported here, racemic sulfoximines were used.
  • 37
    • 38549136656 scopus 로고    scopus 로고
    • The interactions between the benzylic hydrogens and the hydrogens of the alkyl or alkoxy chain in the 1H-NOESY spectra also confirmed the molecular structures of triazole derivatives 3b-e,g,h. Although present in the crude product mixtures, the other regioisomers (triazoles 5) could never be obtained in pure form Figure 1, Chemical Equation Presented
    • 1H-NOESY spectra also confirmed the molecular structures of triazole derivatives 3b-e,g,h. Although present in the crude product mixtures, the other regioisomers (triazoles 5) could never be obtained in pure form (Figure 1). (Chemical Equation Presented)
  • 38
    • 38549130107 scopus 로고    scopus 로고
    • General Procedure for the Cycloaddition Reaction Under vigorous stirring a mixture of NaN3 (12 equiv) and the corresponding bromide (15 equiv) was heated to reflux in H2O (0.7 M) for 1 h. Then, a solution of sulfoximine 4 (1 equiv) in CH2Cl2 (0.08 M) was added dropwise. After 3 h at 100°C under reflux and stirring, the product was extracted with CH2Cl2 and purified by flash column chromatography. As representative example, the analytical data for 1-benzyl-5-butyl-4-(N-tosyl, 4-methylphenylsulfonimidoyl)-1H-1,2, 3-triazole (3a) obtained from the reaction of sulfoximine 4a with benzyl azide are given. Colorless oil (68, chromatography: EtOAc-pentane (1:3, 1H NMR (400 MHz, CDCl3, δ, 0.79 (t, J, 7.0 Hz, 3 H, 1.21-1.29 (m, 4 H, 2.37 (s, 3 H, 2.41 (s, 3 H, 2.76-2.85 (m, 1 H, 2.93-3.02 (m, 1 H, 5.44 d, J, 15.5 Hz, 1 H, 5.49
    • 3: C, 62.04; H, 5.79; N, 10.72. Found: C, 62.06; H, 5.81; N, 11.14.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.