CN101723898B - 一种5-氨基-3-氰基-1-(2,6-二氯-4-三氟甲基苯基)-4-三氟甲基亚磺酰基吡唑的制备方法 - Google Patents
一种5-氨基-3-氰基-1-(2,6-二氯-4-三氟甲基苯基)-4-三氟甲基亚磺酰基吡唑的制备方法 Download PDFInfo
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制备实施例编号 | 氰基乙酸乙酯与2,6-二氯-4三氟甲基苯胺重氮盐的摩尔比 | 反应温度(℃) | 反应时间(小时) | 萃取用溶剂 | 收率(%) |
制备实施例4 | 1.1∶1 | 20 | 3 | 三氯甲烷 | 88 |
制备实施例5 | 1.3∶1 | 23 | 4 | 1,2-二氯乙烷 | 92 |
制备实施例6 | 1.4∶1 | 27 | 4 | 甲苯 | 86 |
制备实施例7 | 1.5∶1 | 30 | 5 | 苯 | 84 |
制备实施例编号 | 化合物(II)产率(%) | 化合物(II)纯度(%) | 总收率(%) |
制备实施例8 | 96 | 98.0 | 84.5 |
制备实施例9 | 96 | 98.1 | 88.3 |
制备实施例10 | 96 | 97.9 | 82.6 |
制备实施例11 | 96 | 97.8 | 80.6 |
制备实施例编号 | 氰化物 | 化合物(V)、氰化物与甲醛的摩尔比 | 溶解(V)所用溶剂 | 萃取用溶剂 | 氨水与(VI)摩尔比 | pH | 环化反应温度(℃) | 环化反应时间(小时) | 产品收率(%) | 总收率(%) |
制备实施例12 | 氰化钾 | 1∶1∶1.1 | 甲醇 | 苯 | 1∶1 | 9 | 30 | 4 | 88 | 83.6 |
制备实施例13 | 氰化亚铜 | 1∶1∶1.1 | 乙醇 | 二甲苯 | 3∶1 | 10 | 32 | 5 | 93 | 88.4 |
制备实施例14 | 亚铁氰化钾 | 1∶1∶1.1 | 异丙醇 | 氯苯 | 4∶1 | 11 | 34 | 6 | 92 | 87.4 |
制备实施例15 | 氰化钠 | 1∶1∶1.2 | 环丁砜 | 甲苯 | 5∶1 | 9 | 36 | 7 | 90 | 85.5 |
制备实施例16 | 氰化钾 | 1∶1∶1.1 | THF | 苯 | 2∶1 | 9 | 38 | 8 | 85 | 80.8 |
制备实施例17 | 氰化亚铜 | 1∶1∶1.1 | NMP | 二甲苯 | 3∶1 | 9 | 40 | 3 | 82 | 77.9 |
制备实施例18 | 亚铁氰化钾 | 1∶1∶13 | DMF | 氯苯 | 4∶1 | 9 | 30 | 4 | 80 | 76.0 |
实施例编号 | x值 | 5-氨基-3-氰基-1-(2,6-二氯-4-三氟甲基苯基)-吡唑、多硫化钠和溴素的摩尔比 | 产品产率(%) | 产品总产率(%) |
实施例4 | 3 | 1∶1∶1 | 88 | 75.3 |
实施例5 | 5 | 1∶1.2∶1.1 | 87 | 74.4 |
实施例6 | 6 | 1∶1.3∶1.15 | 85 | 73.0 |
实施例7 | 7 | 1∶1.4∶1.2 | 83 | 71.0 |
实施例8 | 8 | 1∶1.5∶1.3 | 82 | 70.2 |
实施例编号 | 甲酸盐种类 | 反应温度(℃) | SO2流量(摩尔/小时) | (III)与CF3Br摩尔比 | (III)与SO2的摩尔比 | (III)与甲酸盐摩尔比 | 产品产率(%) | 产品总产率(%) |
实施例9 | 甲酸钾 | 30 | 0.02 | 1∶2 | 1∶1.2 | 1∶3 | 85 | 71.1 |
实施例10 | 甲酸铵 | 40 | 0.025 | 1∶3 | 1∶1.8 | 1∶4 | 88 | 73.7 |
实施例11 | 甲酸钾 | 60 | 0.035 | 1∶5 | 1∶2.1 | 1∶6 | 90 | 75.3 |
实施例12 | 甲酸铵 | 70 | 0.04 | 1∶6 | 1∶2.4 | 1∶7 | 84 | 70.3 |
实施例编号 | (IV)、顺丁二烯酸酐、H2O2的摩尔比 | 产品产率(%) | 产品总产率(%) |
实施例13 | 1∶2∶4 | 85 | 70.4 |
实施例14 | 1∶4∶5 | 90 | 74.5 |
实施例15 | 1∶5∶7 | 84 | 70.3 |
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BRPI1104747B1 (pt) | 2011-09-14 | 2017-11-28 | Rotam Agrochem International Company Limited | Process for the preparation of n-substituted pyrazole compounds |
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US5232940A (en) * | 1985-12-20 | 1993-08-03 | Hatton Leslie R | Derivatives of N-phenylpyrazoles |
CN1374298A (zh) * | 2002-03-27 | 2002-10-16 | 江苏省农药研究所 | 带三氟甲基亚磺酰基的吡唑类化合物的亚磺酰化方法 |
CN101544607A (zh) * | 2009-04-30 | 2009-09-30 | 宁波中化化学品有限公司 | 一种含三氟甲基亚磺酰基的1-芳基吡唑化合物的合成方法 |
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US5232940A (en) * | 1985-12-20 | 1993-08-03 | Hatton Leslie R | Derivatives of N-phenylpyrazoles |
CN1374298A (zh) * | 2002-03-27 | 2002-10-16 | 江苏省农药研究所 | 带三氟甲基亚磺酰基的吡唑类化合物的亚磺酰化方法 |
CN101544607A (zh) * | 2009-04-30 | 2009-09-30 | 宁波中化化学品有限公司 | 一种含三氟甲基亚磺酰基的1-芳基吡唑化合物的合成方法 |
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