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Volumn , Issue 4, 2009, Pages 569-572

H2O2/Fe(NO3)3-promoted synthesis of 2-arylbenzimidazoles and 2-arylbenzothiazoles

Author keywords

2 arylbenzimidazole; 2 arylbenzothiazole; Aryl aldehydes; Chemoselectivity; Hydrogen peroxide; Solvent free

Indexed keywords


EID: 62249124735     PISSN: 09365214     EISSN: 14372096     Source Type: Journal    
DOI: 10.1055/s-0028-1087911     Document Type: Article
Times cited : (73)

References (45)
  • 43
    • 62249104644 scopus 로고    scopus 로고
    • Ferric nitrate, hydrogen peroxide (30, as well as all the aromatic aldehydes, 1,2-phenylenediamine derivatives and 2-aminothiophenol employed as substrates are commercially available and were used without further purification. The concentration of the commercial 30% H2O2 solution was checked iodometrically prior to use. General procedure for the Synthesis of Benzimidazoles and Benzothiazoles: A mixture of 1,2-phenylenediamine (1 mmol, aryl aldehyde (1 mmol, H2O 2 (30, 4 mmol, 0.4 mL) and Fe(NO3)3·9 H2O (0.1 mmol, 0.04 g) was heated at 50°C for the appropriate time as mentioned in Table 2. After completion of the reaction, the reaction mixture was dissolved in EtOH (10 mL) and then poured into ice-water (30 mL, The pure solid product was filtered, washed with ice-water and subsequently dried. An identical procedure was employed using 2-aminothiophenol (1 mmol, aryl aldehyde (1 mmol) in t
    • 6): δ = 22.0, 122.0, 123.5, 125.5, 126.7, 127.9, 130.2, 131.3, 135.4, 141.9, 154.6, 168.7.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.