Pentakis(dimethylamido) Tantalum(V)

Synthesis and structures of tantalum chloride and tantalum aryloxide compounds bearing bidentate and tridentate pyrrole‐amine ligands

“…So, tantalum chlorides are frequently used as starting material for synthesizing associated tantalum compounds such as tantalum alkoxides, tantalum amides, tantalum oxos, and tantalum clusters. [1][2][3][4][5][6] Organotantalum compounds are usually obtained via metathesis from tantalum halides or metalation from tantalum alkyls or amides as shown in Scheme 1. By inserting new ligands into corresponding tantalum moiety, a large variety of organotantalum compounds were synthesized in past decades, and their applications as catalysis for hydroxy-directed amidation of carboxylic acid esters, [7] phosgene-free synthesis of carbamates, [8] ringopening polymerization, [9][10][11] sol-gel chemistry, [12][13][14][15] etc., have been explored.…”