Sm. Lu et al., A novel and efficient method for the synthesis of beta-triazolylalkenes via the phase transfer catalyzed Wittig reaction, HETEROCYC C, 6(4), 2000, pp. 319-322
N-Alkylation of phosphonium salt 1 with 1H-1,2,4-triazole gave gamma -triaz
olylpropyltriphenylphosphonium bromide 2, which reacted with aromatic aldeh
ydes 3 under the phase transfer conditions to afford beta -triazolylalkenes
4.