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Volumn 2, Issue 6, 2005, Pages 532-534

First microwave-assisted synthesis of 3-substituted isocoumarins

Author keywords

3 substituted isocoumarins; Homophthalic acid; Microwave irradiation

Indexed keywords


EID: 46149090613     PISSN: 15701786     EISSN: None     Source Type: Journal    
DOI: 10.2174/1570178054640813     Document Type: Review
Times cited : (12)

References (48)
  • 12
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    • J Okazaki, T. Chem. Abst. 1989, 110, 141262p.
  • 35
    • 11144325118 scopus 로고    scopus 로고
    • and references quoted therein
    • Kappe, C.O. Angew. Chem. Int. Engl. Ed. 2004, 43, 6250, and references quoted therein.
    • (2004) Angew. Chem. Int. Engl. Ed , vol.43 , pp. 6250
    • Kappe, C.O.1
  • 38
    • 0040714077 scopus 로고    scopus 로고
    • Saify, Z.S., Khan, K.M., Haider, H.M., Zeeshan, Shah, S.T. A., Saeed, M., Shekhani, M.S., Welter, W. Z. Naturforsch. 1999, 54b, 1327;
    • (c) Saify, Z.S., Khan, K.M., Haider, H.M., Zeeshan, Shah, S.T. A., Saeed, M., Shekhani, M.S., Welter, W. Z. Naturforsch. 1999, 54b, 1327;
  • 39
    • 46149099738 scopus 로고    scopus 로고
    • Khan, K.M., Saity, Z.S., Zeeshan, Khan, A., Ahmed, M., Saeed, M., Schick, M., Kohlbau, H.J., Voelter, W. Arzneim-Forsch./Drug Res. 2000, 50, 915;
    • (d) Khan, K.M., Saity, Z.S., Zeeshan, Khan, A., Ahmed, M., Saeed, M., Schick, M., Kohlbau, H.J., Voelter, W. Arzneim-Forsch./Drug Res. 2000, 50, 915;
  • 40
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    • Khan, K.M., Saify, Z.S., Zeeshan, Khan, A., Ahmed, M., Saeed, M., Abdel-Jalil, R.J., Grubler, G., Welter, W. Z. Naturforsch. 1999, 54b, 1210;
    • (e) Khan, K.M., Saify, Z.S., Zeeshan, Khan, A., Ahmed, M., Saeed, M., Abdel-Jalil, R.J., Grubler, G., Welter, W. Z. Naturforsch. 1999, 54b, 1210;
  • 47
    • 46149101941 scopus 로고    scopus 로고
    • Typical Experimental Procedure, Compound 3a: A mixture of homophthalic acid (1 g, 5.5 mmol) and acid chloride (22 mmol) was placed in a 25 mL conical flask. Microwave irradiation (MW domestic type oven 900 W with a frequency 2450 MHz, Dawlance, Pakistan) was applied for 90 seconds (three pulses each of 30s, The completion of reaction was monitored by the TLC analysis. The solvent system for TLC was hexane and ethyl acetate (7:3, The product was purified by column chromatography using hexane as eluent and recrytallized by methanol containing traces of water. A representative set of physical and spectroscopic data of prepared compounds is given below. Phenyi-1M-isocoumarin 3a: Yield: 92, m.p, 80 °C; IR (ν max, KBr, cm-, 1734, 1614, 1550, 3018; 1H-NMR (400 MHz, CDC13, δ 6.94 (1H, s, H-4, 7.26 (1H, d, J, 7.53 Hz, H-5, 7.59 (1H, t, J= 7.38 Hz, H-6),7.84 (1H, t, J= 7.63 Hz, H-7),8.3 1H
    • 2: C,81.07%, H,4.54% found:C,81.1 1%; H,4.54%


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.