Abstract
Reaction of the titanium borate zwitterion complex (η5-C5Me4SiMe2NtBu)Ti(η3-CH3(CH)3CH2B(C6F5)3) (1) with carbon monoxide results in the formation of the novel titanium−acyl borate complex (η5-C5Me4SiMe2NtBu)Ti(η3-CH3(CH)3CH2COB(C6F5)3) (2). Addition of 1 equiv of PMe3 to 1 results in the loss of B(C6F5)3 to give (η5-C5Me4SiMe2NtBu)Ti(1,3-pentadiene) and Me3P·B(C6F5)3. Addition of (CH3)3CN⋮C to 1 results in the formation of the isocyanide adduct (η5-C5Me4SiMe2NtBu)Ti(CNC(CH3)3)(η3-C5H8B(C6F5)3) (3). The X-ray crystal structures of 2 and 3 were determined.
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