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Volumn , Issue 10, 2007, Pages 1585-1588

Kinugasa reaction under click chemistry conditions

Author keywords

lactam; Click chemistry; Kinugasa reaction; Nitrone

Indexed keywords

BETA LACTAM DERIVATIVE;

EID: 34347366362     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2007-980383     Document Type: Article
Times cited : (30)

References (39)
  • 1
    • 0004030277 scopus 로고
    • Morin, R. B, Gorman, M, Eds, Academic Press: New York
    • (a) Chemistry and Biology of β-Lactam Antibiotics, Vol. 1; Morin, R. B.; Gorman, M., Eds.; Academic Press: New York, 1982.
    • (1982) Chemistry and Biology of β-Lactam Antibiotics , vol.1
  • 2
    • 0004030277 scopus 로고
    • Morin, R. B, Gorman, M, Eds, Academic Press: New York
    • (b) Chemistry and Biology of β-Lactam Antibiotics, Vol. 2; Morin, R. B.; Gorman, M., Eds.; Academic Press: New York, 1982.
    • (1982) Chemistry and Biology of β-Lactam Antibiotics , vol.2
  • 3
    • 0004030277 scopus 로고
    • Morin, R. B, Gorman, M, Eds, Academic Press: New York
    • (c) Chemistry and Biology of β-Lactam Antibiotics, Vol. 3; Morin, R. B.; Gorman, M., Eds.; Academic Press: New York, 1982.
    • (1982) Chemistry and Biology of β-Lactam Antibiotics , vol.3
  • 4
    • 34347360268 scopus 로고    scopus 로고
    • The Chemistry of β-Lactams; Page, M. I., Ed.; Chapman & Hall: London, 1992.
    • (d) The Chemistry of β-Lactams; Page, M. I., Ed.; Chapman & Hall: London, 1992.
  • 6
    • 34347357108 scopus 로고
    • Demain, A. L, Solomon, N. A, Eds, Springer: Berlin
    • (f) Antibiotics Containing the β-Lactam Structure, Part 2; Demain, A. L.; Solomon, N. A., Eds.; Springer: Berlin, 1983.
    • (1983) Antibiotics Containing the β-Lactam Structure , Issue.PART 2
  • 15
    • 34347361194 scopus 로고    scopus 로고
    • Angew. Chem. 2003, 115, 4216.
    • (2003) Chem , vol.115 , pp. 4216
    • Angew1
  • 33
    • 34347348637 scopus 로고    scopus 로고
    • All the nitrones were prepared according to the procedure described in: Bhattacharya, G. PhD Thesis; Indian Institute of Technology: Kharagpur, India, 1997.
    • (a) All the nitrones were prepared according to the procedure described in: Bhattacharya, G. PhD Thesis; Indian Institute of Technology: Kharagpur, India, 1997.
  • 34
    • 34347353847 scopus 로고    scopus 로고
    • However, a general method of preparation is given below along with the spectroscopic data of some representative compounds: To a solution of EtOH (30 mL) and H2O (20 mL) nitrobenzene or p-methoxynitrobenzene (50 mmol, benzaldehyde (or p-methoxybenzaldehyde or furfural or thienyl aldehyde; 50 mmol) and Zn dust (5 gm) were placed. The mixture was stirred at 5°C. AcOH (30 mL) was slowly added in a span of 20 min. The reaction mixture was stirred for an additional 1.5 h at -5°C. The mixture was filtered and the residue was washed with EtOAc. The filtrate was concentrated to 10 mL. H2O was added and the products were extracted with EtOAc. The organic layer was washed with NaHCO3, brine and dried over Na 2SO4. The solvent was evaporated under vacuo and the crude mass was subjected to silica gel column chromatography. The products were eluted with hexane-EtOAc mixture. Compound 2a: 1H NMR: δ
    • 1H NMR: δ = 7.15 (dd, J = 4.0, 4.8 Hz, 1 H), 7.39-7.56 (m, 5 H), 7.76-7.81 (m, 2 H), 8.46 (s, 1 H).
  • 35
    • 34347347744 scopus 로고    scopus 로고
    • General Procedure: To a solution of CuSO4· 5H2O (1 mmol) in degassed H2O (10 mL, sodium ascorbate (2 mmol) was added and the mixture was stirred for 30 min at r.t, solution X, In another flask, to a solution of propargyl alcohol-3-butyn-2-ol-propargyl nucleobase (2 mmol) in DMF-MeCN (3 mL) under argon at 0°C, Et3N (2 mmol) was added and the mixture was stirred for 30 min (solution Y, Solution Y was added dropwise to the solution X at r.t. after which a 2 mL DMF or MeCN solution of the nitrones12 2a-2d (1 mmol) was added slowly over 10 min. The reaction was stirred at r.t. for 16-25 h. It was then diluted with H2O and filtered through celite. The celite bed was washed with EtOAc. The combined filtrate and washings were extracted with EtOAc. The organic layer was washed with NH4Cl, H2O and brine and dried over Na2SO4 and evaporated. The residue, obtai
    • 14 in quantitative yield.
  • 37
    • 0035157940 scopus 로고    scopus 로고
    • The spectral data for all the known compounds have been reported: (a) Basak, A.; Rudra, K. R.; Ghosh, S. C.; Bhattacharya, G. Indian J. Chem., Sect. B: Org. Chem. Incl. Med. Chem. 2001, 40, 974.
    • The spectral data for all the known compounds have been reported: (a) Basak, A.; Rudra, K. R.; Ghosh, S. C.; Bhattacharya, G. Indian J. Chem., Sect. B: Org. Chem. Incl. Med. Chem. 2001, 40, 974.
  • 38
    • 34347327714 scopus 로고    scopus 로고
    • PhD Thesis; Indian Institute of Technology: Kharagpur, India
    • (b) Ghosh, S. C. PhD Thesis; Indian Institute of Technology: Kharagpur, India, 2005.
    • (2005)
    • Ghosh, S.C.1
  • 39
    • 34347359196 scopus 로고    scopus 로고
    • For the new compounds, the spectral data are given below: β-Lactam 8j: 1H NMR: δ, 1.85 (s, 3 H, 3.90 (dd, J, 7.6, 14.4 Hz, 1 H, 3.98 (dd, J, 7.6, 14.4 Hz, 1 H, 4.14 (m, 1 H, 5.26 (d, J, 5.6 Hz, 1 H, 6.50 (br s, 2 H, 7.08-7.48 (m, 7 H, 8.64 (br s, 1 H, 13C NMR: δ, 12.18, 45.51, 50.95, 52.54, 110.41, 111.16, 111.26, 116.77, 124.45, 129.13, 137.09, 140.79, 143.60, 147.73, 150.60, 164.02, 164.29. MS (ES, m/z, 368 [MH, 390 [MNa, β-Lactam 7j: 1H NMR: δ, 1.84 (s, 3 H, 3.76 (m, 1 H, 4.15 (dd, J, 5.6, 14.8 Hz, 1 H, 4.29 (dd, J, 6.6, 14.6 Hz, 1 H, 5.09 (d, J, 2.4 Hz, 1 H, 6.35 (d, J, 2.8 Hz, 1 H, 6.50 (m, 1 H, 7.06-7.48 (m, 7 H, 9.06 (br s, 1 H, 13C NMR: δ, 12.23, 45.75, 52.48, 55.86, 110.31, 110.71, 111.32, 116.88, 124.46, 129.10, 137.10, 140.62, 143.43, 148.71, 151.59, 164.08, 164.61. MS ES
    • +].


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.