| O-甲基异脲硫酸盐的合成新工艺研究 |
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| 引用本文： | 徐建忠,冯晓亮,孔诚,吴清盛,崔伟.O-甲基异脲硫酸盐的合成新工艺研究[J].上海化工,2002(Z3). |
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| 作者姓名： | 徐建忠 冯晓亮 孔诚 吴清盛 崔伟 |
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| 作者单位： | 巨化股份有限公司研发中心，巨化股份有限公司研发中心，巨化股份有限公司研发中心，巨化股份有限公司研发中心，巨化股份有限公司研发中心 杭州 310018，杭州 310018，杭州 310018，杭州 310018，杭州 310018 |
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| 摘 要： | 以尿素和硫酸二甲酯为原料二步反应合成O-甲基异脲硫酸盐。(1)尿素和硫酸二甲酯经缩合(甲基化反应)、酸解、水解反应得O-甲基异脲硫酸氢盐,收率43％;(2)O-甲基异脲硫酸氢盐和氢氧化钠在甲醇溶液中反应制得游离O-甲基异脲,游离O-甲基异脲和氢盐中和制得O-甲基异脲硫酸盐,收率78％。
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| 关 键 词： | 尿素 O-甲基异脲 O-甲基异脲硫酸氢盐 O-甲基异脲硫酸盐 |
New Process on Synthesis of o - Methylisourea Sulfate |
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| Xu Jianzhong Feng Xiaoliang Kong Cheng Wu Qingsheng Cui Wei.New Process on Synthesis of o - Methylisourea Sulfate[J].Shanghai Chemical Industry,2002(Z3). |
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| Authors: | Xu Jianzhong Feng Xiaoliang Kong Cheng Wu Qingsheng Cui Wei |
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| Affiliation: | Xu Jianzhong Feng Xiaoliang Kong Cheng Wu Qingsheng Cui Wei |
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| Abstract: | o - Methylisourea sulfate(I) was synthesized in a two step reaction with urea and dimethyl sulfate as raw material. (1) o - methylisourea hydrogene sulfate (II) was prepared from urea and dimethyl sulfate through condensation (methylation), acidolysis and hydrolysis reactions in 43% yield. (2) free o -methylisourea (III) was synthesized with (II) and sodium hydroxide in methanol solvent, (I) was synthesized with (III) and (II) in methanol solvent in 78% yield. |
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| Keywords: | Urea o - Methylisourea o - Methylisourea hydrogene sulfate o - Methylisourea sulfate |
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