Show simple item record

dc.contributor.authorClayton, Callie J.
dc.contributor.authorNguyen, Minh D.
dc.contributor.authorGitua, John N.
dc.date.accessioned2007-05-31T15:21:21Z
dc.date.available2007-05-31T15:21:21Z
dc.date.issued2007-05-31T15:21:21Z
dc.identifier.urihttp://hdl.handle.net/2092/557
dc.description.abstractThe dibutyltitanium(IV) diisopropoxide, Bu2Ti(OPri)2, reacts with acetylenes, RCºCR (1), where R = Ph, Pr, to undergo in high yield epimetalation with Ti(OPri)2 by transfer. Our on-going research has demonstrated the transformation of such three-membered titanacycles (2) into 1,2,4,5-tetrasubstituted benzene derivatives (4) in good yields upon reaction of (2) with monomeric acetylenes, R¢CºCH (3), R¢=Ph, Me3Si at room temperature over 2h. A 1:2 molar mixture of PhCºCPh and PhCºCH provided 90% of pure 1,2,4,5-tetraphenylbenzene. The formation of such aromatic products is made possible via the insertion of the monomeric terminal acetylenes to one of the carbon – titanium bonds of (2) and the subsequent Diels-Alder type addition of the second equivalent of the terminal acetylene to the resulting five-membered titanacycles leading to the elimination of Ti(OPri)2.en
dc.format.extent2162726 bytes
dc.format.mimetypeapplication/pdf
dc.language.isoen_US
dc.relation.ispartofseriesDUCURS 2006;6
dc.subjectAcetylenesen
dc.subjectCarbonen
dc.subjectChemical bondsen
dc.subjectAcetylene compoundsen
dc.subjectCarbon compoundsen
dc.titleCarbon-carbon bond formation via epititanation and aromatization of acetylenesen
dc.typePresentationen


Files in this item

Thumbnail

This item appears in the following Collection(s)

  • DUCURS
    Poster sessions and presentation from the Drake University Conference on Undergraduate Research in the Sciences held each April at Olmsted Center on the Drake campus.

Show simple item record