A Simple Route to N-Acylaminophosphonoacetates (N-protected phosphonylglycine esters)

Abstract
Rhodium(II) acetate catalysed reaction of triethyl diazophosphonoacetate 2 with amides, carbamates or ureas gives a range of N-acyl phosphonylglycine derivatives 3 by N-H insertion reaction of the intermediate rhodium carbenoid.

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