Abstract
Bis- and tris-(benzimidazol-1-yl)methane derivatives are reported with different substituents at position 2 of the benzimidazole ring. When the substituents are large enough, these compounds, even the bis-derivatives, can be resolved using hplc on CHIRALPAK OT(+) columns. For some compounds, the racemization barriers have been measured and their steric origin ascertained (ΔG + + = a+b MR, MR being the molar refractivity)
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