Easily assembled, modular N,O-chelating ligands for Ta(V) complexation: a comparative study of ligand effects in hydroaminoalkylation with N-methylaniline and 4-methoxy-N-methylaniline
作者:Pierre Garcia、Philippa R. Payne、Eugene Chong、Ruth L. Webster、Benedict J. Barron、Andrew C. Behrle、Joseph A.R. Schmidt、Laurel L. Schafer
DOI:10.1016/j.tet.2013.04.070
日期:2013.7
The influence of structurally related N,O-chelating ligands with additional heteroatoms (N, O, P, S) on the reactivity of in situ generated tantalumcomplexes for the hydroaminoalkylation of amines has been explored. Reactivity was probed by evaluating the catalytic ability of these N,O-chelating systems with N-methylaniline and 4-methoxy-N-methylaniline substrates. Enhanced reactivity is observed