Synthesis and NMR properties of novel 5,6-dihydroborauracil derivatives

Abstract Novel boron compounds – 5,6-saturated borauracil derivatives (4-bromo-5,6-dihydroborauracil, 4-hydroxy-5,6-dihydroborauracil and 4-methoxy-5,6-dihydroborauracil) are presented along with other boron compounds obtained from N -vinylurea: N -substituted β-boronic amino acid – 2-{[(dihydroxyborano-amino)(dihydroxyboranooxy)methyl]-amino}ethylboronic acid and substituted methoxy-borane O-[(1-amino-1- N -vinylamino)methyl]dihydroxyboronate.