A copy of this work was available on the public web and has been preserved in the Wayback Machine. The capture dates from 2019; you can also visit the original URL.
The file type is
4,4"-Bis(2,3,4,5-tetramethylcyclopentadienyl)terphenyl (3a). In a dry Schlenk tube under nitrogen, a solution of t-BuLi (22 mL, 37.12 mmol) was added dropwise to a slurry of 4,4"dibromoterphenyl (3.6 g, 9.28 mmol) in diethyl ether (75 mL) at -78°C. The reaction mixture was stirred for 4 h at this temperature and then 1 h at room temperature. It was again cooled to -78°C and a solution of 2,3,4,5-tetramethyl-cyclopent-2-enone (2.56 g, 18.56 mmol) in THF (60 mL) was added dropwise. The reactiondoi:10.1039/c0dt01060j pmid:21076768 fatcat:aka6baco4zbmphzuqtwwont2nu