A tetrahedral titanium(IV) amido aryloxide compound [Ti(OC6H3tBu2-2,6)2(NMe2)2]
摘要:
In the compound bis(2,6-di-tert-butylphenoxy)bis-(dimethylamido)titanium, [Ti(C2H6N)2(C14H21O)2], a distorted tetrahedral geometry is adopted around the Ti metal center by two aryloxide O atoms and two N atoms of the dialkylamido groups. Ti-O(aryloxide) = 1.808 (2), 1.828 (2) angstrom; Ti-N(amido) = 1.892 (3), 1.885 (3) angstrom.
A Dramatic Effect of Aryloxo Ligands on the Titanium-Catalyzed Hydroamination of Alkynes
摘要:
[GRAPHICS]The aryloxotitanium complex 1 is a highly chemo- and regioselective catalyst for intermolecular hydroamination of terminal alkynes. Branched imines are obtained in good to excellent yield (up to 99%) with various primary aromatic and aliphatic amines.