求化学摘要的英文翻译

发布网友发布时间：2022-06-27 19:01

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热心网友时间：2024-12-12 13:41

1,8-Naphthalimide-type compounds are important fluorescent materials. This paper reported the preparation of 4,5-di(p-methylphenylacetylenyl)-1,8-naphthalimide. Tar-acenaphthene was used as starting material which was converted to 4,5-dibromo-1,8-naphthalimide through bromination, oxidation, condensation, and other steps. 4,5-Di(p-methylphenylacetylenyl)-1,8-naphthalimide was prepared through Sonogashira coupling using Pd(PPh3)2Cl2 as catalyst, CuI as co-catalyst, and ethanol as solvent. The prepared compounds were characterized with NMR spectroscopy. Effects of solvents, temperature, reaction time and the amount of oxidant on the course of the oxidation reaction were studied. Effects of catalyst, co-catalyst, solvent and different halogen-substituted aromatic compounds on the course of Sonogashira coupling reaction were discussed.

热心网友时间：2024-12-12 13:42

1,8 - naphthalimide compound fluorescent material is important. In this paper, 4,5 - two pairs of methyl acetylene to replace benzene -1,8 - naphthalimide synthesis were studied. Acenaphthene as raw materials in order to tar by bromination, oxidation, condensation, and other steps of the synthesis of 4,5 - dibromo-replace -1,8 - naphthalimide. Using Sonogashira reaction to Pd (PPh3) 2Cl2 as a catalyst, CuI as catalyst, 4,5 - dibromo -1,8 - naphthalimide as raw materials in ethanol solvent in the synthesis of 4,5 - 2 pairs of methyl replace acetylene benzene -1,8 - naphthalimide, using nuclear magnetic resonance method of structural characterization of compounds. Study of different solvents, temperature, reaction time, oxidant amount on the effects of oxidation. Discussion of the catalyst, cocatalyst, solvent, and various substituted aryl halogen compounds on the impact of Sonogashira coupling reaction.

热心网友时间：2024-12-12 13:42

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