Trisoxazolinylborate

Tris(oxazolinyl)borate compounds are a class of tridentate ligands; often abbreviated ToR, where R is the substituent on the oxazoline ring.

The formed complex ToMZrCl3 was found to be quite robust and showed C3V symmetry in both solution and solid state.

However TlToM frequently is as a more effective transfer agent than LiToM because of the higher solubility of the Tl salt and the insolubility of thallium chloride by-products.

[1] Another example for the coordinating chemistry of ToM is the formation of ToMMgMe by the reaction of equimolar amounts of HToM and MgMe2(O2C4H8)2.

[2] Furthermore, tris(oxazolinyl)borate yttrium alkyl and amide compounds (ToMYR2) can be used as precatalysts for the cyclization of aminoalkenes.

Trisoxazolinylborate ligand
Tris(4,4-dimethyl-2-oxazolinyl)phenyl borate (To M )
Tris(4 S -isopropyl-2-oxazolinyl)phenylborate (To P )
Preparation of (To M )ZrCl 3 ligand
Preparation of (To M ) 2 Mg ligand