Synthesis and photochemistry of 2,2′-distyrylbiphenyl and 2,2′-bis-(4-phenylbuta-1,3-dienyl)biphenyl
作者:C. D. Tulloch、W. Kemp
DOI:10.1039/j39710002824
日期:——
2,2′-Distyrylbiphenyl and 2,2′-bis-(4-phenylbuta-1,3-dienyl)biphenyl have been prepared by Wittig reactions of 2,2′-bis(triphenylphosphoniomethyl)biphenyl dibromide with benzaldehyde and cinnamaldehyde, respectively, with sodium ethoxide as base. Their photolysis products have been shown by i.r., u.v., n.m.r., and mass spectra to be cyclobutane derivatives formed by intramolecular condensation.
通过2,2'-双(三苯基膦酰基甲基)联苯二溴化物与苯甲醛和肉桂醛的维蒂希反应分别制备了2,2'-二苯乙烯基联苯和2,2'-双-(4-苯基丁-1,3-二烯基)联苯,以乙醇钠为碱。红外,紫外,核磁共振和质谱表明,它们的光解产物是分子内缩合形成的环丁烷衍生物。