Bis- 2,6-Diisopropylphenylimido Heptyl

/Pr2Li(THF) (LrBu Pr2=2,2,6,6-TETRAMETHYL-3,5-BIS-(2,6-DIISOPROPYLPHENYLIMIDO)HEPTYL) 

Submitted by RYAN E. COWLEY, KAREN P. CHIANG, and PATRICK L. HOLLAND  

Checked by DEBASHIS ADHIKARI, FRANCISCO J. ZINO-CRLZ,1 GLORIA SANCHEZ CABRERA, and DANIEL J. MINDIOLA  

The [3-diketiminate ligand with ferf-butyl substituents on the backbone (L Bu, Pr2) gives especially extreme hindrance in late transition metal complexes. Studies on the vanadium chemistry of bulky (3-diketiminates showed that this ligand did not coordinate to vanadium or titanium.1 Only under the right conditions can this ligand be coordinated to Ti(III), albeit in low yields.2 

A method for preparing the lithium salt of this ligand is given here please refer to the previous chapter to find a method for preparing the potassium salt of this ligand. 

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