Synthesis, structures and ε-caprolactone polymerization activity of aluminum N,N′-dimethyloxalamidates

Alkyl aluminum N,N′-dimethyloxalamidates R4Al2(dmoa) (1, R = Me; 2, R = Et; 3, R = iBu; 4, R = tBu) (dmoa-H2 = N,N′-dimethyloxalamide) have been prepared and characterized. Compounds 1-4 have been studied as initiators in a process of ring opening polymerization (ROP) of ε-caprolactone.