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1-Benzyl-3-methylimidazolium tetrafluoroborate as an efficient and green reaction medium for the synthesis of pyrimido[1, 2-a]benzimidazoles. (1st April 2013)
Record Type:
Journal Article
Title:
1-Benzyl-3-methylimidazolium tetrafluoroborate as an efficient and green reaction medium for the synthesis of pyrimido[1, 2-a]benzimidazoles. (1st April 2013)
Main Title:
1-Benzyl-3-methylimidazolium tetrafluoroborate as an efficient and green reaction medium for the synthesis of pyrimido[1, 2-a]benzimidazoles
A series of pyrimido[1, 2-a]benzimidazole derivatives has been synthesised in high yields in the ionic liquid [bmim]+ BF4–. The structures of the products were characterised by IR, 1H NMR, and HRMS spectroscopy. The reaction work-up is simple and the ionic liquid is easily separated from the products for reuse.