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Synthesis, Structure, and Reactivity of Aryloxo(imido)titanium Complexes
Author(s) -
Hill John E.,
Profilet Robert D.,
Fanwick Phillip E.,
Rothwell Ian P.
Publication year - 1990
Publication title -
angewandte chemie international edition in english
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 5.831
H-Index - 550
eISSN - 1521-3773
pISSN - 0570-0833
DOI - 10.1002/anie.199006641
Subject(s) - reactivity (psychology) , benzene , ligand (biochemistry) , chemistry , medicinal chemistry , titanium , azobenzene , stereochemistry , crystallography , molecule , organic chemistry , receptor , medicine , biochemistry , alternative medicine , pathology
The η 2 ‐iminotitanium complex 1 reacts with azobenzene in the presence of pyrrolidinopyridine py′ with ligand exchange to give the complex 2 , which transforms within several days at 100 °C into the phenylimidotitanium complex 3 . The length of the Ti‐N bond in 3 is 171.9(3) pm, and the Ti‐N‐C angle is 173.1(3)°. Unlike imidozirconium compounds, which readily react with C‐H activation, 3 is a “dead dog”—no reaction in benzene at 110°C! Ar′= 2,6‐ i Pr 2 C 6 H 3 , R 1 = t Bu.