Abstract
A convenient, high-yielding, multi-hundred-gram preparation of 1,3-bis(2,6-di-iso-propylphenyl)imidazolium tetrafluoroborate is described. The preparation of this salt has significant advantages over the chloride as it eliminates potential bis(chloromethyl) ether formation. The improved conditions provided the tetrafluoroborate salt in 61% overall yield in two steps from 2,6-di-iso-propylaniline.
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