• 例如二甲亚砜二甲基甲醛二甲基乙酰胺

    For example, water, dimethyl sulfoxide, dimethylformaldehyde, and dimethylacetamide are used.

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  • 易溶于氯仿二甲基乙酰胺多种极性非质子有机溶剂

    It is dissolved in many kinds of dipolar aprotic organic solvents such as NMP, DMAc, DMSO, sulfolane.

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  • 选用N,N -二甲基乙酰胺作为反应溶剂后缩短反应时间的同时,得到盖草能收率光学纯度

    The n, N-dimethyl acetamide is used as the reaction solvent, therefore, the reaction time is shortened, and simultaneously, the obtained Gallant-Super has high yield rate and good optical purity.

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  • 本文聚矾和磺化共混物材料甲基乙酰胺为溶剂,聚烯吡咯啉酮邻苯甲酸甲酯为添加剂配制纺丝液,纺制外压中空纤维超滤膜。

    This paper reported the preparation of hollow fiber UF membrane, using PS and SPS as membrane spinning materials, DMA as solvent, PVPand dimethyl phthalate as additives.

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  • 1,3-二甲基金刚烷为原料,溴化、硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚,收率6 7。8%。

    Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.

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  • 1,3-二甲基金刚烷为原料,溴化、硫酸的作用下乙酰胺基化、水解、成盐等反应及改进的后处理方法得到盐酸美金刚,收率6 7。8%。

    Memantine hydrochloride was synthesized from 1,3 dimethyladamantane by bromination, acetamidation with acetonitrile in sulfuric acid and hydrolysis with an overall yield of 67.8%.

    youdao

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