UNEXPECTED TRANSFORMATIONS OF DO-2-(2'-HYDROXYPHENYL)-5-ETHOXYCARBONYLPYRIMIDINE - THE FORMATION OF NO-2-(2'-HYDROXYPHENYL)-5-ETHOXYCARBONYLPYRIMIDINE AND ETHYL ROXYBENZOYLAMINO)-2-(1''H-TETRAZOL-5''-YL)ACRYLATE
Eb. Nikolaenkova et al., UNEXPECTED TRANSFORMATIONS OF DO-2-(2'-HYDROXYPHENYL)-5-ETHOXYCARBONYLPYRIMIDINE - THE FORMATION OF NO-2-(2'-HYDROXYPHENYL)-5-ETHOXYCARBONYLPYRIMIDINE AND ETHYL ROXYBENZOYLAMINO)-2-(1''H-TETRAZOL-5''-YL)ACRYLATE, Mendeleev communications, (2), 1993, pp. 61-62
The title compound undergoes a spontaneous solid-phase transformation
in the dark into 3 and 4 at room temperature. On refluxing azide 2A in
water, the hydroxylamine 4 was afforded in good yield.