4,4'-二甲基联苯

化合物

4,4'-二甲基联苯是一种有机化合物,化学式为C14H14。它可由4-溴甲苯维基数据所列Q27272425双(1,5-环辛二烯)镍存在下偶联得到。[2]

4,4'-二甲基联苯
别名 4,4'-联甲苯
识别
CAS号 613-33-2  checkY
SMILES
 
  • C=1C=C(C=CC1C=2C=CC(=CC2)C)C
性质
化学式 C14H14
摩尔质量 182.26 g·mol−1
熔点 120—121 °C(393—394 K)[1]
若非注明,所有数据均出自标准状态(25 ℃,100 kPa)下。

反应

它和催化下于二氯甲烷中反应,可以得到2-溴-4,4'-二甲基联苯。[3]它和乙酰氯三氯化铝存在下反应,可以得到2,3'-二乙酰基-4,4'-二甲基联苯。[4]

参考文献

  1. ^ Jya-Wei Cheng; Fen-Tair Luo (1988). Coupling of aryl Grignard reagents by electron transfer to 2,3-dichloropropene. Tetrahedron Letters, 29(11), 1293–1294. doi:10.1016/s0040-4039(00)80280-4
  2. ^ Takakazu Yamamoto. Homocoupling of aryl halides promoted by an NiCl2/bpy/Mg system in DMF. Applied Organometallic Chemistry (2014), 28 (8), 598-604. doi:10.1002/aoc.3168
  3. ^ David M. E. Freeman; et al. Synthesis and Exciton Dynamics of Donor-Orthogonal Acceptor Conjugated Polymers: Reducing the Singlet–Triplet Energy Gap. J. Am. Chem. Soc. 2017, 139, 32, 11073–11080. doi:10.1021/jacs.7b03327.
  4. ^ Salam J.J. Titinchi; et al. Preparation of mono- and diacetyl 4,4′-dimethylbiphenyl and their corresponding carboxylic acids: Reactivity, selectivity and isomer distribution studies via Lewis acid catalyzed Friedel-Crafts acetylation/oxidation. Journal of Molecular Catalysis A: Chemical, 2007. 273 (1-2): 169-176. doi:10.1016/j.molcata.2007.03.069.