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Volumn 48, Issue 31, 2007, Pages 5407-5409

TaBr5-catalyzed Biginelli reaction: one-pot synthesis of 3,4-dihydropyrimidin-2-(1H)-ones/thiones under solvent-free conditions

Author keywords

3,4 Dihydropyrimidin 2 (1H) ones thiones; Solvent free conditions; TaBr5 catalyzed Biginelli reaction

Indexed keywords

3,4 DIHYROPYRIMIDIN 2(1H) ONE DERIVATIVE; BROMIDE; PYRIMIDINONE DERIVATIVE; TANTALUM; TANTALUM BROMIDE; UNCLASSIFIED DRUG;

EID: 34347366185     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2007.06.005     Document Type: Article
Times cited : (105)

References (53)
  • 53
    • 34347341910 scopus 로고    scopus 로고
    • note
    • 5. The solvent was gradually evaporated by heating and the neat reaction mixture was heated with stirring for 40-45 min at 70-80 °C. Product precipitation started after 15 min, TLC monitoring showed that the reaction was completed after 45 min. After cooling the solid precipitate was filtered and washed with cold water and ethanol under reduced pressure and the residue was crystallized from ethanol or ethyl acetate-hexane (1:3) to afford the pure product (4).


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.