1201516-71-3Relevant academic research and scientific papers
Amidate Complexes of Tantalum and Niobium for the Hydroaminoalkylation of Unactivated Alkenes
Lauzon, Jean Michel,Eisenberger, Patrick,Ro?ca, Sorin-Claudiu,Schafer, Laurel L.
, p. 5921 - 5931 (2017/09/15)
A series of mono(amidate) Ta and Nb complexes with varying steric and electronic properties were synthesized. These complexes were screened as precatalysts for the hydroaminoalkylation of alkenes with secondary amines. Sterically demanding mono(amidate) T
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
Garcia, Pierre,Payne, Philippa R.,Chong, Eugene,Webster, Ruth L.,Barron, Benedict J.,Behrle, Andrew C.,Schmidt, Joseph A.R.,Schafer, Laurel L.
, p. 5737 - 5743 (2013/07/11)
The influence of structurally related N,O-chelating ligands with additional heteroatoms (N, O, P, S) on the reactivity of in situ generated tantalum complexes 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 with amide proligands bearing an ortho-methoxyphenyl group on the nitrogen. 4-Methoxy-N-methylaniline is found to be more prone to undergo C-H functionalization via hydroaminoalkylation than N-methylaniline. The use of the related substrate 2-methoxy-N-methylaniline is not tolerated, and instead C(sp3)-O bond cleavage was observed.
GROUP 5 METAL COMPLEXES USEFUL FOR AMINE FUNCTIONALIZATION AND SYNTHETIC PROCESS FOR MANUFACTURE THEREOF
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Page/Page column 53, (2012/04/17)
The present invention provides Group 5 metal complexes useful for amine functionalization and synthetic process for manufacture thereof. Provided in this application are halo group 5 metal-amidate complexes having the structure of Formula I: I wherein: M
Tantalum-amidate complexes for the hydroaminoalkylation of secondary amines: enhanced substrate scope and enantioselective chiral amine synthesis
Eisenberger, Patrick,Ayinla, Rashidat O.,Lauzon, Jean Michel P.,Schafer, Laurel L.
supporting information; experimental part, p. 8361 - 8365 (2010/01/16)
Tantalizing reactivity: New mono- and bis(amidate)-tantalum complexes have been prepared, characterized, and used for the catalytic a-alkylation of secondary amines (see scheme). Spontaneous β-hydrogen abstraction is observed to give a fully characterized
