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Synthesis and reactivity of novel 1H-isochromeno[3,4-d]imidazol-1-onium salts

Journal Contribution - Journal Article

A straightforward and convenient preparation of 25 novel imidazolium salts from the corresponding 1H-isochromeno[3,4-d]imidazolones is described, employing either a quaternization or a quaternization/anion metathesis strategy. The nature of the anion has a major influence on the melting point of these imidazolium salts (BF4 > I, PF6 > N(Tf)(2), N(CN)(2) > OTf).
Journal: Heterocycles
ISSN: 0385-5414
Issue: 1
Volume: 84
Pages: 537 - 554
Publication year:2012
Keywords:Organic & medicinal chemistry