Synthesis of an α-(Aminooxy)arylacetic Ester by the Reaction of an α-Diazo Ester with N-Hydroxyphthalimide.

The α-diazo esters (6) and (7) react, in the absence of any catalyst, with a variety of HONR2 and HONCR2 compounds to give the 0-alkylated adducts (8) to (16). In particular, reaction of (7) with N-hydroxyphthalimide in refluxing benzene followed by deprotection gives the title compound (1)