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Volumn , Issue 8, 2005, Pages 1243-1246

Microwave-assisted benzimidazole cyclization by bismuth chloride

Author keywords

Bismuth chloride; Combinatorial chemistry; Liquid phase method; Microwave assisted synthesis; Scaffold

Indexed keywords

ALCOHOL; BENZENE DERIVATIVE; BENZIMIDAZOLE DERIVATIVE; BISMUTH; BISMUTH CHLORIDE; BISMUTH DERIVATIVE; CHLOROFORM; DIAMINE; ETHER; ISOTHIOCYANIC ACID DERIVATIVE; METHANOL; POLYMER; THIOUREA DERIVATIVE; TRIETHYLAMINE; UNCLASSIFIED DRUG;

EID: 19944400760     PISSN: 09365214     EISSN: None     Source Type: Journal    
DOI: 10.1055/s-2005-865240     Document Type: Article
Times cited : (23)

References (41)
  • 16
    • 0012870522 scopus 로고    scopus 로고
    • Soluble polymer-supported synthesis of heterocyclic libraries
    • Bellavance, L., Ed.; Humana Press Inc.: New Jersey, Chap. 10
    • (c) Sun, C. M. Soluble Polymer-Supported Synthesis of Heterocyclic Libraries, In 'Combinatorial Chemistry Methods and Protocols' Methods in Molecular Biology Series; Bellavance, L., Ed.; Humana Press Inc.: New Jersey, 2002, Chap. 10, 345-371.
    • (2002) 'Combinatorial Chemistry Methods and Protocols' Methods in Molecular Biology Series , pp. 345-371
    • Sun, C.M.1
  • 29
    • 0042912871 scopus 로고    scopus 로고
    • Combinatorial soluble polymer synthesis of heterocyclic libraries has been demonstrated in our laboratory: (a) Chang, W. J.; Yeh, W. B.; Sun, C. M. Synlett 2003, 1688.
    • (2003) Synlett , pp. 1688
    • Chang, W.J.1    Yeh, W.B.2    Sun, C.M.3
  • 36
    • 19944372768 scopus 로고    scopus 로고
    • note
    • The control reaction was also performed under normal thermal heating in refluxing chloroform (pre-heated oil bath) for four minutes, using identical stoichiometry. However, after cleavage we obtained only the unreacted compound 4. The same reaction reached completion in two hours by conventional heating. Similar enhancement through microwave irradiation was also observed during the cleavage step. Compared to conventional thermal hearting, microwave irradiation decreased the reaction time on the support from several hours to several minutes.
  • 37
    • 19944386277 scopus 로고    scopus 로고
    • note
    • All the microwave assisted polymer-supported reactions described here were performed in a CEM Discover Microwave System at a frequency of 2450 Hz (0-300 W).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.