983 research outputs found

    ランダム充填について(形の物理学,研究会報告)

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    この論文は国立情報学研究所の電子図書館事業により電子化されました

    マイクロ波を用いたN-メチル-N-フェニルカルバモイルクロリドの合成と反応

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    N-methy-N-phenylcarbamoyl chloride was synthsized by the reaction of N-methylformanilide and thionyl chloride under microwave irradiation. By the treatment of N-methyl-N-phenylcarbamoyl chloride with sodium ethoxide and N-methylaniline ethyl N-methyl-N-phenylcarbamate and N,N\u27-dimethyl N,N\u27-diphenylurea was obtained, respectively

    マイクロ波を用いるアントラセンの Vilsmeier 反応

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    The Vilsmeier reaction of anthracene (1) with N-methylformanilide and pyrophosphoryl chloride afforded 9-formylanthracene (2) in good yields by using microwave irradiation or by using traditional heating. The reaction time under microwave irradiation was markedly shorter than that by heating with an oil bath

    Vilsmeier 錯体の性質と反応性

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    The Vilsmeier complexes 3-8 were obtained from the reaction of amide such as N-methylformanilide (NMFA) and N,N-dimethylformamide (DMF) and chloride such as diphosphoryl chloride, phosphorous oxychloride, and oxalyl chloride. The behavior of complexes was clarified by H NMR measurement in a deutrated solvent such as CDCl3, CD2Cl2, CD2ClCD2Cl, CD3CN, THF-d8, and dioxane-d8. Complexes 3 and 4 were converted to DMF or NMFA partially in chlorinated hydrocarbons. On the other hand, complexes 3 and 4 were stable in CD3CN. The reactivity of the Vilsmeier complexes is determined by the reaction of complexes 3-8 with 1,3-dimethoxybenxzene(9) in dry acetonitrile at 70℃ for 3h. The order of reactivity is complex 6> complex 4> complex 3 and complex 5> complex 7 and complex 8

    マイクロ波を用いるカルバソール類のVilsmeier反応

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    9-Formylcarbazole was obtained by the reaction of carbazole with N,N-dimethylformamide and phosphorus oxychloride in good yields under microwave irradiation. Also, 9-alkylated carbazole-3-carbaldehydes were afforded by the Vilsmeier reaction of the corrresponding carbazoles in good yields under microwave conditions
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