Unusual product formation in a 1,1-carboboration reaction.

Chemical communications (Cambridge, England)

PubMedID: 25695899

Eller C, Kehr G, Daniliuc CG, Erker G. Unusual product formation in a 1,1-carboboration reaction. Chem Commun (Camb). 2015;.
The reaction of the cross-conjugated enediyne Me2C[double bond, length as m-dash]C(C[triple bond, length as m-dash]CSiMe3)2 () with B(C6F5)3 gives the unusual borabicyclo[4.3.0]nonadiene product . The reaction sequence is initiated by 1,1-carboboration and is suggested to take a short subsequent sequence involving borane induced H migration reactions from the geminal pair of methyl groups.