Efficient and rapid stereoselective synthesis of trans-4,5- diaminoeyclopent-2-enones by acidic ionic liquid under solvent-free conditions

Chemistry Letters

Volumn 38, Issue 6, 2009, Pages 586-587

  Ramesh, D ^a   Reddy, T Srikanth ^a   Narasimhulu, M ^a   Rajaram, S ^a   Suryakiran, N ^a   Mahesh, K Chinni ^a   Venkateswarlu, Y ^a  

^a INDIAN INSTITUTE OF CHEMICAL TECHNOLOGY   (India)

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Indexed keywords

EID: 67650475329     PISSN: 03667022     EISSN: 13480715     Source Type: Journal    
DOI: 10.1246/cl.2009.586     Document Type: Article

References (26)

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25. 2 in 0.5:9.5). After completion of the reaction water (5 mL) was added and the product was extracted into ethyl acetate (3 × 10 mL). The combined organic extracts were dried over anhydrous sodium sulphate and evaporated under reduced pressure to give crude product, which was purified by silica gel column chromatography eluting with ethyl acetate in hexane to get pure 4, 5-diaminocyclopent-2-enones. The water layer was evaporated to dryness under reduced pressure and the ionic liquid was reused for the next four runs.
26. Supporting Information is available electronically on the CSJ-Journal Web site, http://www.csj.jp/journals/chem-lett/index.html.