Ws. Huang et Cy. Yuan, STUDIES ON ORGANOPHOSPHORUS COMPOUNDS .92. A FACILE SYNTHESIS OF 1-SUBSTITUTED 5-TRIFLUOROMETHYLIMIDAZOLE-4-PHOSPHONATES, Synthesis, (4), 1996, pp. 511
Base-induced cycloaddition of diethyl isocyanomethylphosphonate to tri
fluoroacetimidoyl chlorides gives 1-substituted diethyl 5-trifluoromet
hylimidazole-4-phosphonates with high regioselectivity.