The preparation of 2-alkoxy-1, 3, 2-oxazaphospholidines and some reactions will be described. 2-Alkoxy-1, 3, 2-oxazaphospholidines were prepared either from ethyl phosphorodichloridite and aminoethanols or, more conveniently, from tris [diethylamino] phosphite, aminoethanols and alcohols. 2-Alkoxy-1, 3, 2-oxazaphospholidines reacted easily with alcohols or p-toluenesulfonic acid monohydrate to give dialkyl aminoethyl ...