Intramolecular Charge-Transfer Interaction in a New Dyad Based on C60 and Bis(4′-tert-butylbiphenyl-4-yl)aniline (BBA) Donor was written by Ohno, Toshinobu;Moriwaki, Kazuyuki;Miyata, Toshiyuki. And the article was included in Journal of Organic Chemistry in 2001.Synthetic Route of C16H17Br This article mentions the following:
A novel methanofullerene dyad based on C60 and bis(4′-tert-butylbiphenyl-4-yl)aniline (BBA) has been prepared and characterized. Cyclic voltammetry (CV) and UV-vis spectra of the C60-BBA methanofullerene dyad, 61-phenyl-1,2-methanofullerene[60], 1,2-methanofullerene[60], and BBA were measured and analyzed. CV measurements showed that a reversible oxidation wave of the C60-BBA methanofullerene dyad was pos. shifted by 40 mV compared to that of BBA. More remarkably, comparing UV-vis spectra of the C60-BBA methanofullerene dyad and 1,2-methanofullerene[60] shows a large increase in intensity for a broad band at 500 nm in the dyad despite the lack of an absorbance at >400 nm for BBA. These results indicate the presence of charge-transfer interactions in the C60-BBA methanofullerene dyad between the fullerene moiety and diarylaniline moieties. In the experiment, the researchers used many compounds, for example, 4-Bromo-4′-tert-butylbiphenyl (cas: 162258-89-1Synthetic Route of C16H17Br).
4-Bromo-4′-tert-butylbiphenyl (cas: 162258-89-1) belongs to organobromine compounds. Bromine is more electronegative than carbon (2.9 vs 2.5). Consequently, the carbon in a carbon閳ユ彽romine bond is electrophilic, i.e. alkyl bromides are alkylating agents. Many of the alkyl bromine derivatives are excellent alkylating agents since bromides are good leaving groups. Tribromides, like tetrabutylammonium tribromide, are used as a solid source of bromine. N-bromosuccimide (NBS) is used for the selective bromination of allylic bonds.Synthetic Route of C16H17Br
Referemce:
Bromide – Wikipedia,
bromide – Wiktionary