中文摘要：

2-苯基-1，2，3-三唑基4-甲醛与1，3-丙二胺或对苯二胺缩合，形成新的双席夫碱3和4，然后分别与氯代肟在三乙胺条件下发牛1，3-偶极环加成，得到新型双-1，2，4-噁二唑衍生物6a-6f和7a～7f结构经元素分析，IR，^1H NMR和MS确证，并用X射线衍射法测定了化合物6e的晶体结构．化合物6e属于单斜晶系，C2／c空间群，晶胞参数a=3．5134（8）nm，b=0．50575（11）nm，c=2．0598（5）nm，α=90°,β=102．02（8）°,γ=90°，Mr=756．81，V=3．5798（14）nm^3，Dc=1．404g／cm^3，Z=4，F（000）=1576，μ=0．095mm^-1，R=0．0787，wR=O．2093．

英文摘要：

Condensation of propane-1,3-diamine or benzene-1,4-diamine with 2-phenyl-1,2,3-triazole-4- carboxaldehyde gave a series of new bis-Schiff bases 3 and 4, which were then reacted with α-chloro-oximes to afford a bis-1,2,4-oxadiazoline derivatives 6a-6f and 7a-7f by 1,3-dipolar cycloaddition. The new compounds were characterized by elemental analysis, IR, ^1H NMR, MS techniques and X-ray diffraction analysis. The crystal of the compound 6e belongs to monoclinic, space group C2/c with cell parameter a = 3.5134（8） nm, b=0.50575（11） nm, c=2.0598（5） nm, α=90°, β=102.02（8）°,γ=90°, Mr=756.81, V= 3.5798（14） nm^3, Dc= 1.404 g/cm^3, Z=4, F（000）= 1576,μ=0.095 mm^-1, R=0.0787 and wR=0.2093.