STRUCTURE AND REACTIVITY OF CYCLIC ENEDIOL N-PHOSPHORYLAZOLES AND N-PHOSPHORYLTETRAMETHYLGUANIDINE

References

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• The reactions of CEP-pyrrole with alcohols may be more complex than indicated here. While there is no question that the uncatalyzed and imidazole catalyzed reactions proceed with exclusive ring-opening, preliminary experiments indicate that the same reactions when catalyzed by triethylamine, quinuclidine, or salts of acetate or p-nitrophenoxide anions seem to yield either products of ring-opening, ring-retention or both of these in a manner which is not altogether clear at present.
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