Abstract We report on the synthesis of mono (aryloxido) titanium (IV) complexes of general formula {Ti [O (oR) Ar] X 3}, with X= OiPr, ArO= 2-tert-butyl-4-methylphenoxy and R= CMe 3 (2a), CMe 2 Ph (2b) and CH 2 NMe 2 (2c). Attempts to reach pure mono (aryloxido) complexes when R= CH 2 NMe (CH 2 Ph)(2d) or CH 2 N (CH 2 Ph) 2 (2e) were unsuccessful. When R= CH 2 OMe, the analogous mononuclear complex was not ...