1-[(1S,2S)-1,2-Bis(2-hydroxyphenyl)-2- pivaloylaminoethylamino]-2,2-dimethyl-1-propanone

When 2-[(1S,2S)-1,2-diamino-2(2-hydroxyphenyl)ethyl]phenol (I) was reacted with 2 mole equivalents of trimethyl acetic (pivalic) anhydride in tetrahydrofuran at room temperature, 1-[(1S,2S)-1,2-bis(2-hydroxyphenyl)-2-pivaloylaminoethylamino]-2,2-dimethyl-1-propanone (II) was obtained quantitatively as the only product. The structure of the product was determined using ¹ Hand ¹³ C-NMR. The COSY spectrum indicated that the single -NH was coupled to the single benzylic proton, -CH. The versality of the transformation could be used to generate additional compounds for use in various research areas.