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Volumn 48, Issue 33, 2007, Pages 5785-5789

A practical access to novel 2-amino-5-arylidene-1,3-thiazol-4(5H)-ones via sulfur/nitrogen displacement under solvent-free microwave irradiation

Author keywords

Amino thiazolone; Knoevenagel; Microwave irradiation; Rhodanine; Solvent free reaction; Sulfur nitrogen displacement; Tandem reaction

Indexed keywords

2 AMINO 1,3 THIAZOL 4(5H) ONE DERIVATIVE; DARBUFELONE; NITROGEN; PD 0167570; RHODANINE; SULFUR; THIAZOLE DERIVATIVE; UNCLASSIFIED DRUG;

EID: 34447511405     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.06.078     Document Type: Article
Times cited : (41)

References (46)
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    • Besson T., and Brain C. In: Tierney J.P., and Lidström P. (Eds). Heterocyclic Chemistry Using Microwave Assisted Approaches. Microwave Assisted Organic Synthesis (2004), Blackwell Publishing Chapter 3
    • (2004) Microwave Assisted Organic Synthesis
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    • Temperature measured by an IR captor: Prolabo, French Patent 622 410, 14669 Fr, 1991.
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    • note
    • + requires 264.9867).
  • 42
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    • note
    • Reaction in solution phase between commercial rhodanine and benzyl bromide afforded a ratio of 4:1 for sulfur/nitrogen alkylation, see Ref. 8.
  • 44
    • 34447555458 scopus 로고    scopus 로고
    • note
    • ® 402 Prolabo microwave reactor. The stirred mixture was irradiated (after a ramp of 4 min from 20 to 80 °C) at 80 °C (Power level: 30%, 90 W) with appropriate reaction time (from 20 to 60 min). After microwave dielectric heating, the crude reaction mixture was allowed to cool down at room temperature and ethanol (20 mL) was added in the cylindrical quartz reactor. The resulting insoluble product 6 was filtered and dried under high vacuum for 2 h.
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    • 34447562407 scopus 로고    scopus 로고
    • note
    • CAUTION: Owing to elimination of hydrogen sulfide during the sulfur/nitrogen displacement reaction, the experiments in the microwave reactor were realized under ventilated extractor hood.
  • 46
    • 34447564706 scopus 로고    scopus 로고
    • note
    • + requires 318.0674).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.