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Volumn 49, Issue 43, 2008, Pages 6254-6256

Regioselective synthesis of novel substituted pyrazolo[1,5-a]pyrimidines under solvent-free conditions

Author keywords

3 Benzoyl 2 methyl 4H chromen 4 one; 5 Amino 1H pyrazole; Pyrazolo 15 a pyrimidine; Solvent free reaction

Indexed keywords

FUNCTIONAL GROUP; NITROGEN; PYRAZOLE DERIVATIVE; PYRAZOLO[1,5 A]PYRIMIDINE DERIVATIVE; SOLVENT;

EID: 51049112027     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2008.08.044     Document Type: Article
Times cited : (70)

References (26)
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    • Feurer, A.; Luithle, J.; Wirtz, S.; Koenig, G.; Stasch, J.; Stahl, E.; Schreiber, R.; Wunder, F.; Lang, D. PCT Int. Appl. WO 2004009589, Bayer Healthcare AG, Germany.
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  • 25
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    • Preparation of 6-(2′-hydroxybenzoyl)-5-methyl-7-phenyl-pyrazolo[1,5-a]pyrimidines 5a-h: A mixture of equimolar amounts of 5-amino-3-R-1H-pyrazole 1 (10 mmol) and 3-benzoyl-2-methyl-4H-chromen-4-one 4 (2.64 g, 10 mmol) was heated in an oil-bath at 180 °C for 2 min (Method A) or was placed in an air open Pyrex-erlenmeyer flask, and the system was irradiated in a multimode microwave oven during 2 min (at 600 W) (Method B).
    • 2: m/z = 419.1634; found: 419.1639.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.