Abstract Eight N-isopropyl compounds of the formal structure YY′ CHCONHPr-i (6), Y, Y′= CO 2 Me, CO 2 CH 2 CF 3, CN; YY′= Meldrum′ s acid residue; Y= CO 2 Me, Y′= CO 2 CH 2 CF 3, CN; Y= CO 2 CH 2 CF 3, CO 2 CH (CF 3) 2, Y′= CN, and the Nt-butyl derivative of Meldrum's acid were prepared and their structures were investigated in the solid state and in solution. The x-ray diffraction data indicate that in the solid state the structure is that of ...
