Selective preparation of polycyclic aromatic hydrocarbons. Part 5.1 Bromination of 2, 7-di-tert-butylpyrene and conversion into pyrenoquinones and their …
T Yamato, M Fujimoto, A Miyazawa…
Index: Yamato, Takehiko; Fujimoto, Masakazu; Miyazawa, Akira; Matsuo, Koji Journal of the Chemical Society - Perkin Transactions 1, 1997 , # 8 p. 1201 - 1207
Full Text: HTML
Citation Number: 2
Abstract
The bromination of 2, 7-di-tert-butylpyrene 1 with 1.1 mol equiv. and 2.2 mol equiv. of bromine in a carbon tetrachloride solution afforded 1-bromo-2, 7-di-tert-butylpyrene 2a and a mixture of 1, 6-dibromo-(3a) and 1, 8-dibromo-2, 7-di-tert-butylpyrene (3b) in 85 and 73% yield, respectively. On the other hand, when the same reaction was carried out with 6.0 mol equiv. of bromine in the presence of iron powder, an acid-catalysed rearrangement of ...
Related Articles:
[Hu, Jian-Yong; Ni, Xin-Long; Feng, Xing; Era, Masanao; Elsegood, Mark R. J.; Teat, Simon J.; Yamato, Takehiko Organic and Biomolecular Chemistry, 2012 , vol. 10, # 11 p. 2255 - 2262]
[Tashiro, Masashi; Yamato, Takehiko Journal of the American Chemical Society, 1982 , vol. 104, # 13 p. 3701 - 3707]
[Tashiro, Masashi; Yamato, Takehiko Chemistry Letters, 1980 , p. 1127 - 1130]
[Tashiro, Masashi; Yamato, Takehiko Chemistry Letters, 1980 , p. 1127 - 1130]
[Tashiro, Masashi; Yamato, Takehiko Journal of Organic Chemistry, 1981 , vol. 46, # 8 p. 1543 - 1552]