共查询到20条相似文献,搜索用时 31 毫秒
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2, 5-Diphenyl-1, 3, 4-oxadiazoles are shown to react with aromatic amines on heating, to give 2, 5-diphenyl-4-aryl-1, 2, 4-triazoles. 相似文献
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N. S. Prostakov G. A. Vasil'ev V. P. Zvolinskii A. V. Varlamov A. A. Savina O. I. Sorokin N. D. Lopatina 《Chemistry of Heterocyclic Compounds》1975,11(8):971-975
The previously unknown 3-alkyl-2,4,6-triphenylpyridines were obtained from 1-methyl-3-alkyl-2, 6-diphenyl-4-piperidones. It was established that a mixture of 1,3-diphenyl-4-azafluorene and 1,3-diphenyl-2-azafluorene is formed in the dehydrocyclization of 3-methyl-2,4,6-triphenylpyridine. 相似文献
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Ji Hye Hwang Yeon Hui Jung Youn Young Hong Sung Lan Jeon In Howa Jeong 《Journal of fluorine chemistry》2011,132(12):1227-1231
Trifluoromethylated enynyl sulfones 3 were reacted with PhLi at −78 °C for 2–4 h to give 2-trifluoromethyl-1,1-diphenyl-1,3-enynes 6 in good yields. Carbocyclization reaction of 6 with 10 mol% of Pd(OAc)2 in cosolvent of CF3COOH and MC (4:1) at room temperature for 1 h afforded 2-trifluoromethyl-1-methylene-3-phenylindene derivatives 7 in good yields. 相似文献
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The reaction of 1,3-diphenylbarbituric and 1,3-diphenyl-2-thiobarbituric acids with diazotized sulfaniiimides gives 1,3-diphenylalloxan and 1,3-diphenyl-2-thioalloxan phenylhydrazones.Translated from Khimiya Geterotsiklicheskikh Soedinenii, No. 9, pp. 1276–1279, September, 1971. 相似文献
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A sterically encumbered 3-thioxo-1,3-diphosphapropene, bearing a P=C-P=S skeleton, was prepared, characterised, and allowed to react with a carbonyltungsten(0) reagent and iodine affording the corresponding chelate tungsten(0) complex and charge-transfer complex with iodine, respectively, which were analysed by the X-ray crystallography. 相似文献
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The synthesis of arylethylene derivatives of 2,5-diphenyl-1,3,4-oxadiazole by the Wittig reaction from 2-(p-bromomethylphenyl)-5-phenyl-1,3,4-oxadiazole and aromatic aldehydes is described. The compounds obtained fluoresce strongly on irradiation with UV light. 相似文献
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