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Protonolysis zirconium compounds

An even more striking reaction of the alkylzirconium compounds formed by hydrozirconation is insertion of carbon monoxide into the C—Zr bond to form zirconium-acyl complexes. For example, 1-hexene or an internal hexene is treated in benzene with (1) to form the alkylzirconium complex (6), which is then allowed to react under 20 psi of carbon monoxide at room temperature. The colorless acyl complex (7) is formed within several hours. An intermediate zirconium carbonyl species is not detected. The acyl complex (7) is converted into an aldehyde (8) on protonolysis, into a carboxylic acid (9) by treatment first with aqueous NaOH and then 30% H2O2, or into an ester (10) by treatment with NBS and then with an alcohol. This procedure differs significantly from... [Pg.177]

See other pages where Protonolysis zirconium compounds is mentioned: [Pg.241]    [Pg.244]    [Pg.5314]    [Pg.920]    [Pg.241]    [Pg.244]    [Pg.5313]    [Pg.38]    [Pg.241]   
See also in sourсe #XX -- [ Pg.690 ]

See also in sourсe #XX -- [ Pg.8 , Pg.690 ]

See also in sourсe #XX -- [ Pg.8 , Pg.690 ]



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Protonolysis

Zirconium compounds

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