吡唑特,58011-68-0，生产厂家，价格-洛克化工网移动版

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基本信息

制备方法及用途

物化性质

安全信息

毒理性

结构与计算化学

吡唑特

中文名称：: 吡唑特

中文别名：: 吡唑特;
4-(2,4-二氯苯甲酰基0-1,3-二甲基-5-吡唑基对甲苯磺酸酯;
4-(2,4-二氯苄氧基)-1,3-二甲基-5-吡唑基甲苯磺酸盐

英文名称：: Methanone,(2,4-dichlorophenyl)[1,3-dimethyl-5-[[(4-methylphenyl)sulfonyl]oxy]-1H-pyrazol-4-yl]-

英文别名：: pyrazolynate;
4-(2,4-dichlorobenzoyl)-1,3-dimethyl-1H-pyrazol-5-yl 4-methylbenzene-1-sulfonate;
(2,4-dichlorophenyl)[1,3-dimethyl-5-[[(4-methylphenyl)sulfonyl]oxy]-1H-pyrazol-4-yl]methanone;
SW-751;
[4-(2,4-dichlorobenzoyl)-2,5-dimethylpyrazol-3-yl] 4-methylbenzenesulfonate;
4-(2,4-dichlorobenzoyl)-1,3-dimethylpyrazol-5-yl toluene-4-sulfonate;
Pyrazolynate;
PYRAZOLATE;
pyrazolate

CAS No.：: 58011-68-0

分子式：: C₁₉H₁₆Cl₂N₂O₄S

分子量：: 439.31

精确分子量：: 438.02100

PSA：: 86.64000

InChI：: The Key: ASRAWSBMDXVNLX-UHFFFAOYSA-N3

危险品标志：

风险术语：

安全术语：

分子结构式：

SDS：: 查看

吡唑特制备方法及用途

制备方法

由1,3-二甲基吡唑酮-5与2,4-二氯苯甲酰氯在溶剂和碱存在下制得1,3-二甲基-4-(2,4-二氯代苯甲酰基)-5-羟基吡唑(以下称中间体),再与对甲苯磺酰氯缩合制得吡唑特。操作过程:将164mL叔丁醇、6g中间体和10.4g无水碳酸钾,回流1h,然后在回流状态下使补加的叔丁醇与水带出的叔丁醇速度相等,2h后,于15min内把11.5g对甲苯磺酰氯加完,继续回流1.5h。然后冷却至室温,抽滤,将滤饼与滤液除去溶剂后的残留物合并,用200mL苯和100mL水的混合液洗涤两次,分出苯层用150mL水洗涤两次,苯层用无水硫酸钠干燥,脱苯后得淡黄色粗品,用苯-己烷(1:1)溶液重结晶后得纯品。文献报道,5-吡唑啉酮与2,4-二氯苯甲酰氯几乎定量反应,在有碱存在时可促进HCl的游离,加快反应速度,5-苯甲酰氧吡唑与5-吡唑啉酮的阴离子进行反应,生成目的物DTP的阴离子物。反应中,5-吡唑啉酮不断游离。存在少量的-5-吡唑啉酮阴离子有利于反应进行。实际上,在碱金属的碳酸盐的存在下,加热苯甲酰氧吡唑得到高收率的DTP盐,该金属盐亦可用苯甲酰化的化合物以同一反应获得。然而使用碱金属的碳酸盐不会产生副产物苯甲酸,使用等摩尔量的原料可生成目的化合物。生成的DTP盐继续进行甲苯磺酰化,得吡唑特。

合成制备方法

由1，3-二甲基吡唑酮-5与2，4-二氯苯甲酰氯在溶剂和碱存在下制得1，3-二甲基-4-（2，4-二氯代苯甲酰基）-5-羟基吡唑（以下称中间体），再与对甲苯磺酰氯缩合制得吡唑特。操作过程：将164mL叔丁醇、6g中间体和10.4g无水碳酸钾，回流1h，然后在回流状态下使补加的叔丁醇与水带出的叔丁醇速度相等，2h后，于15min内把11.5g对甲苯磺酰氯加完，继续回流1.5h。然后冷却至室温，抽滤，将滤饼与滤液除去溶剂后的残留物合并，用200mL苯和100mL水的混合液洗涤两次，分出苯层用150mL水洗涤两次，苯层用无水硫酸钠干燥，脱苯后得淡黄色粗品，用苯-己烷（1：1）溶液重结晶后得纯品。
文献报道，5-吡唑啉酮与2，4-二氯苯甲酰氯几乎定量反应，在有碱存在时可促进HCl的游离，加快反应速度，5-苯甲酰氧吡唑与5-吡唑啉酮的阴离子进行反应，生成目的物DTP的阴离子物。反应中，5-吡唑啉酮不断游离。存在少量的-5-吡唑啉酮阴离子有利于反应进行。实际上，在碱金属的碳酸盐的存在下，加热苯甲酰氧吡唑得到高收率的DTP盐，该金属盐亦可用苯甲酰化的化合物以同一反应获得。然而使用碱金属的碳酸盐不会产生副产物苯甲酸，使用等摩尔量的原料可生成目的化合物。生成的DTP盐继续进行甲苯磺酰化，得吡唑特。

用途简介

吡唑类除草剂,通过抑制叶绿素生物合成使杂草致死。防除稻田中一年生和多年生杂草。对稻、稗具有选择性,能在野稗、鸭舌草、节节菜及牛毛毡、萤蔺、窄叶泽泻等幼苗期通过其根部的吸收而抑制它们的生长,起到防除杂草的作用。本品能与多种除草剂混用,并肯增效作用,能起到单独使用所起不到的作用与效果。如与杀草隆、抑草磷及丁草胺等混用。一般在播前或移栽时用于稻田,每公顷有效成分3kg,施药时需在保水条件下,用手或机械均匀撒施10%颗粒剂。

用途

吡唑类除草剂，通过抑制叶绿素生物合成使杂草致死。防除稻田中一年生和多年生杂草。对稻、稗具有选择性，能在野稗、鸭舌草、节节菜及牛毛毡、萤蔺、窄叶泽泻等幼苗期通过其根部的吸收而抑制它们的生长，起到防除杂草的作用。本品能与多种除草剂混用，并肯增效作用，能起到单独使用所起不到的作用与效果。如与杀草隆、抑草磷及丁草胺等混用。一般在播前或移栽时用于稻田，每公顷有效成分3kg，施药时需在保水条件下，用手或机械均匀撒施10%颗粒剂。

吡唑特毒理性

CHEMICAL IDENTIFICATION

RTECS NUMBER :: PC4950050

CHEMICAL NAME :: Methanone, (2,4-dichlorophenyl)(1,3-dimethyl-5-(((4-methylphenyl )sulfonyl)oxy)-1H-pyr azol-4- yl)-

CAS REGISTRY NUMBER :: 58011-68-0

BEILSTEIN REFERENCE NO. :: 0860937

LAST UPDATED :: 199612

DATA ITEMS CITED :: 8

MOLECULAR FORMULA :: C19-H16-Cl2-N2-O4-S

MOLECULAR WEIGHT :: 439.33

WISWESSER LINE NOTATION :: T5NNJ A1 C1 DVR BG DG& EOSWR D1

HEALTH HAZARD DATA

ACUTE TOXICITY DATA

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 9550 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: 1950 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - rat

DOSE/DURATION :: >6 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Oral

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Administration onto the skin

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >5 gm/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Intraperitoneal

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: 3681 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984

TYPE OF TEST :: LD50 - Lethal dose, 50 percent kill

ROUTE OF EXPOSURE :: Subcutaneous

SPECIES OBSERVED :: Rodent - mouse

DOSE/DURATION :: >8300 mg/kg

TOXIC EFFECTS :: Details of toxic effects not reported other than lethal dose value

REFERENCE :: SKKNAJ Sankyo Kenkyusho Nempo. Annual Report of Sankyo Research Laboratories. (Sankyo K.K. Sogo Kenkyusho, 1-2-58 Hiro-machi, Shinagawa-ku, Tokyo 140, Japan) No.15- 1963- Volume(issue)/page/year: 36,44,1984