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Volumn 52, Issue 14, 2011, Pages 1653-1657

Basic alumina supported one-pot synthesis of structurally diverse pyridine/quinolinine-fused novel diazepanium, diazocanium, imidazodilinium and tetrahydro-pyrimidiniums

Author keywords

Basic alumina; Diazepaniums; Diazocaniums; Imidazodiliniums; Microwave; Tetrahydro pyrimidiniums

Indexed keywords

ALUMINUM OXIDE; DIAZEPANIUM; DIAZOCANIUM; IMIDAZODILINIUM; POLYCYCLIC AROMATIC COMPOUND; PYRIDINE DERIVATIVE; QUINOLINE DERIVATIVE; SILICA GEL; TETRAHYDROPYRIMIDINIUM; UNCLASSIFIED DRUG;

EID: 79952360262     PISSN: 00404039     EISSN: None     Source Type: Journal    
DOI: 10.1016/j.tetlet.2011.01.134     Document Type: Article
Times cited : (13)

References (39)
  • 38
    • 79952360161 scopus 로고    scopus 로고
    • note
    • General reaction procedure: 3.3 mmol 2-aminopyridine derivatives (1a, 1b) or 8-aminoquinoline (4) and 6 mmol dibromoalkanes or benzylic dibromides (2a-e) were placed in a round bottomed flask (25 ml) and dissolved in minimum amount of chloroform. Basic alumina (0.4 g) was then added to the solution and the organic solvent was then evaporated to dryness under reduced pressure. After fitting the flask with a septum the mixture was subjected to irradiation in a microwave reactor (CEM, Discover, USA) at 90 °C (180 W) for appropriate amount of time (as monitored by TLC). After completion of the reaction the reaction mixture was cooled and methanol was added to it and the slurry was stirred at room temperature for 10 min. The mixture was then vacuum filtered through a sintered glass funnel. The filtrate was then evaporated to dryness under reduced pressure and the residue was purified by flash chromatography to isolate the product. In the recycling experiment the residue obtained after vacuum filtration of the reaction mixture was washed with alkaline water and acetone (2-3 times) and subjected to calcination at 150 °C.
  • 39
    • 79952361130 scopus 로고    scopus 로고
    • note
    • + 171.0917; found: 171.0931.


* 이 정보는 Elsevier사의 SCOPUS DB에서 KISTI가 분석하여 추출한 것입니다.