title: Synthesis of p, p'-divinylazobenzene.
abstract: OBJECTIVE
  To synthesize p, p'-divinylazobenzene (DVAB).
  
  
  METHODS
  Wittig reagent was initially synthesized using P-nitrobenzyl bromide and triphenylphosphine, followed by reaction with formaldehyde to produce p-nitro styrene, which was then deoxidized by Zn/NaOH for the final product of DVAB.
  
  
  RESULTS
  Fourier transform infrared spectroscopy, nuclear magnetic resonance and element analysis were employed to identify the structure of DVAB, and the lambda(max) as determined by ultraviolet spectroscopy occurred at 357 nm.
  
  
  CONCLUSIONS
  The synthesis procedure of DVAB was therefore optimized with high yield.
authors.affiliation: Teaching and Research Section of Chemistry, First Military Medical University, Guangzhou 510515, China.
authors.forename: Qing-Yuan
authors.initials: QY
authors.lastname: Chen
authors.forename: Wen-Wei
authors.initials: WW
authors.lastname: You
authors.forename: Yi-Min
authors.initials: YM
authors.lastname: Zhou
authors.forename: Jian-Hai
authors.initials: JH
authors.lastname: Chen
mesh_terms: D001391:Azo Compounds / Q000138:chemical synthesis* / Q000737:chemistry; D009682:Magnetic Resonance Spectroscopy; D008968:Molecular Conformation; D009578:Nitrobenzenes / Q000737:chemistry*; D009943:Organophosphorus Compounds / Q000737:chemistry*; D017550:Spectroscopy, Fourier Transform Infrared; D013343:Styrenes / Q000138:chemical synthesis* / Q000737:chemistry
chemical_list: D001391:Azo Compounds; D009578:Nitrobenzenes; D009943:Organophosphorus Compounds; D013343:Styrenes; C479547:p,p'-divinylazobenzene; C027563:4-nitrobenzyl bromide; C061896:triphenylphosphine