Generation and Trapping of a Highly Strained Bicyclic Alkyne: Tricyclo[6.3.1.0<sup>2,7</sup>]dodeca-2,4,6-trien-9-yne
作者:Ferhan Tümer、Yavuz Taskesenligil、Metin Balci
DOI:10.1021/jo0017537
日期:2001.6.1
the corresponding 9,10-dibromotricyclo [6.3.1.0(2,7)] dodeca-2,4,6,9-tetraene (14). Treatment of 14 with tert-butyllithium in THF at -78 degrees C produces the strained bicyclic alkyne (10) which is trapped by 1,3-diphenylisobenzofuran to give two isomeric cycloadducts 12a and 12b. The adducts 12a and 12b were found to readily rearrange to the isomeric ketones 19a and 19b upon chromatography. Upon treatment