2-羟甲基-3,4-二甲氧基吡啶 | 72830-08-1

• 物质功能分类: 有机原料 - 杂环化合物
• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 2-羟甲基-3,4-二甲氧基吡啶
• 中文别名: 4-氯-3-甲氧基-2-氯甲基吡啶盐酸盐
• 英文名称: 2-hydroxymethyl-3,4-dimethoxypyridine
• 英文别名: 2-(hydroxymethyl)-3,4-dimethoxypyridine ；2-(hydroxymethyl)-3,4-dimethoxypyridine；3,4-Dimethoxy-2-hydroxymethylpyridine；(3,4-dimethoxypyridin-2-yl)methanol
• CAS: 72830-08-1
• 化学式: C₈H₁₁NO₃
• 分子量: 169.18
• InChiKey: BKTHTLOKUUJKDF-UHFFFAOYSA-N

物化性质

• 熔点：
  92-95°C
• 沸点：
  275.5±35.0 °C(Predicted)
• 密度：
  1.170±0.06 g/cm3(Predicted)
• 溶解度：
  可溶于氯仿（轻微）、乙酸乙酯（轻微）、甲醇（非常轻微）

计算性质

• 辛醇/水分配系数(LogP)：
  -0.1
• 重原子数：
  12
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  51.6
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 危险品标志：
  Xi
• 海关编码：
  2933399090
• 危险性防范说明：
  P261,P280,P301+P312,P302+P352,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H335
• 储存条件：
  2-8°C

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 2-Hydroxymethyl-3,4-dimethoxypyridine
Synonyms:

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Section 2. Hazards identification
Harmful by inhalation, in contact with skin, and if swallowed.

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Section 3. Composition/information on ingredients.
Ingredient name: 2-Hydroxymethyl-3,4-dimethoxypyridine
CAS number: 72830-08-1

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Section 4. First aid measures
Skin contact: Immediately wash skin with copious amounts of water for at least 15 minutes while removing
contaminated clothing and shoes. If irritation persists, seek medical attention.
Eye contact: Immediately wash skin with copious amounts of water for at least 15 minutes. Assure adequate
flushing of the eyes by separating the eyelids with fingers. If irritation persists, seek medical
attention.
Inhalation: Remove to fresh air. In severe cases or if symptoms persist, seek medical attention.
Ingestion: Wash out mouth with copious amounts of water for at least 15 minutes. Seek medical attention.

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Section 5. Fire fighting measures
In the event of a fire involving this material, alone or in combination with other materials, use dry
powder or carbon dioxide extinguishers. Protective clothing and self-contained breathing apparatus
should be worn.

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Section 6. Accidental release measures
Personal precautions: Wear suitable personal protective equipment which performs satisfactorily and meets local/state/national
standards.
Respiratory precaution: Wear approved mask/respirator
Hand precaution: Wear suitable gloves/gauntlets
Skin protection: Wear suitable protective clothing
Eye protection: Wear suitable eye protection
Methods for cleaning up: Mix with sand or similar inert absorbent material, sweep up and keep in a tightly closed container
for disposal. See section 12.
Environmental precautions: Do not allow material to enter drains or water courses.

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Section 7. Handling and storage
Handling: This product should be handled only by, or under the close supervision of, those properly qualified
in the handling and use of potentially hazardous chemicals, who should take into account the fire,
health and chemical hazard data given on this sheet.
Store in closed vessels.
Storage:

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Section 8. Exposure Controls / Personal protection
Engineering Controls: Use only in a chemical fume hood.
Personal protective equipment: Wear laboratory clothing, chemical-resistant gloves and safety goggles.
General hydiene measures: Wash thoroughly after handling. Wash contaminated clothing before reuse.

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Section 9. Physical and chemical properties
Appearance: Not specified
Boiling point: No data
No data
Melting point:
Flash point: No data
Density: No data
Molecular formula: C8H11NO3
Molecular weight: 169.2

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Section 10. Stability and reactivity
Conditions to avoid: Heat, flames and sparks.
Materials to avoid: Oxidizing agents.
Possible hazardous combustion products: Carbon monoxide, nitrogen oxides.

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Section 11. Toxicological information
No data.

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Section 12. Ecological information
No data.

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Section 13. Disposal consideration
Arrange disposal as special waste, by licensed disposal company, in consultation with local waste
disposal authority, in accordance with national and regional regulations.

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Section 14. Transportation information
Non-harzardous for air and ground transportation.

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Section 15. Regulatory information
No chemicals in this material are subject to the reporting requirements of SARA Title III, Section
302, or have known CAS numbers that exceed the threshold reporting levels established by SARA
Title III, Section 313.

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SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

产品描述

2-羟甲基-3,4-二甲氧基吡啶是一种吡啶类衍生物，可用于制备泮托拉唑中间体2-氯甲基-3,4-二甲氧基吡啶盐酸盐。

产品用途

2-羟甲基-3,4-二甲氧基吡啶可用作有机合成中间体。

反应信息

• 作为反应物：
  描述：

  2-羟甲基-3,4-二甲氧基吡啶 在 sodium hydroxide 、 氯化亚砜 、 间氯过氧苯甲酸 作用下， 以 乙醇 、 二氯甲烷 为溶剂， 反应 4.5h， 生成 泮托拉唑
  参考文献：
  名称：

  （H +，K +）-ATPase抑制2-[（（2-吡啶基甲基）亚磺酰基]苯并咪唑 4.具有增加的选择性的一系列新的二甲氧基吡啶基取代的抑制剂。选择of托拉唑作为临床候选药物。

  摘要：

  [（吡啶基甲基）亚磺酰基]苯并咪唑1（PSBs）是一类高度有效的抗分泌（H +，K +）-ATPase抑制剂，需要通过酸激活才能形成其活性成分，即环亚磺酰胺4。（H + ，K +）-ATPase在体内仅在低pH时会产生非选择性的亲硫基4，从而避免了与体内其他巯基的相互作用。进行酸催化转化的倾向取决于2形成中所涉及的官能团的亲核/亲电性质，因为该步骤既决定速率又取决于pH。这项研究的目的是鉴定在具有酸性pH值的刺激胃腺中具有高（H +，K +）-ATPase抑制活性的化合物，但在体外pH值（Na +，K +）-ATPase抑制活性。仔细研究了所有衍生物中存在的吡啶4-甲氧基取代基侧面的取代基的关键影响。3-甲氧基的引入使得抑制剂具有与奥美拉唑和兰索拉唑相似的高效力组合，但是增加了稳定性。这些研究的结果是，化合物1a（INN top托拉唑）被选作候选药物，目前正在进行III期临床研究。

  DOI：

  10.1021/jm00084a010
• 作为产物：
  描述：

  麦芽醇 在 sodium tungstate (VI) dihydrate 、 氨 、 双氧水 、 sodium hydroxide 、 三氯氧磷 作用下， 以 甲醇 、 二氯甲烷 为溶剂， 14.0~90.0 ℃ 、101.33 kPa 条件下， 反应 69.0h， 生成 2-羟甲基-3,4-二甲氧基吡啶
  参考文献：
  名称：

  一锅法制备2-氯甲基-3，4-二甲氧基吡啶盐酸盐的方法

  摘要：

  本发明公开了一种一锅法制备2‑氯甲基‑3，4‑二甲氧基吡啶盐酸盐的方法，将一定量的甲基麦芽酚加入到预先配置10％液碱中，搅拌溶解，在10～15℃向其中滴加一定量的硫酸二甲酯，控制反应液的pH值在9左右，二甲酯滴加完成后，升温到40～45℃保温3小时，降温到20℃以下，加入二氯甲烷萃取，浓缩二氯甲烷至干得较高纯度的化合物2，可直接用于下一步反应。本发明在原有的工艺上改进了操作方法以“一锅法”的方式得到2‑氯甲基‑3，4‑二甲氧基吡啶盐酸盐，不仅大大提高了反应效率，避免了中间体的烘料等操作，简化了操作步骤，也降低了成本。一锅法工艺简单可靠，利于商业化生产实施反应总收率最高可以达到60％以上。

  公开号：

  CN113979930A

文献信息

• POLYCYCLIC PYRAZOLINONE DERIVATIVE AND HERBICIDE COMPRISING SAME AS EFFECTIVE COMPONENT THEREOF
  申请人：SAGAMI CHEMICAL RESEARCH INSTITUTE

  公开号：US20160024110A1

  公开（公告）日：2016-01-28

  Provided are a polycyclic pyrazolinone derivative indicated by general formula (1) (in the formula, R 1 , X 1 , X 2 , X 3 , and Y indicate the definitions provided in the Specification) and a herbicide comprising same as effective component thereof.

  提供了一个由通式（1）表示的多环吡唑酮衍生物（在该式中，R1、X1、X2、X3和Y表示规范中提供的定义），以及包含其作为有效成分的除草剂。
• 2-[(2-Pyridylmethyl)sulfinyl]-1H-thieno[3,4-d]imidazoles. A novel class of gastric H+/K+-ATPase inhibitors
  作者：Klaus Weidmann、Andreas W. Herling、Hans Jochen Lang、Karl Heinz Scheunemann、Robert Rippel、Hildegard Nimmesgern、Thomas Scholl、Martin Bickel、Heinz Metzger

  DOI：10.1021/jm00081a004

  日期：1992.2

  2-[(2-Pyridylmethyl)sulfinyl]thienoimidazoles were synthesized and investigated as potential inhibitors of gastric H+/K(+)-ATPase. The [3,4-d] isomers of the two possible thienoimidazole series were found to be potent inhibitors of gastric acid secretion in vitro and in vivo. Structure-activity relationships indicate that especially lipophilic alkoxy, benzyloxy, and phenoxy substituents with additional

  合成2-[（（2-吡啶基甲基）亚磺酰基]噻吩并咪唑类化合物，并研究其作为胃H + / K（+）-ATPase的潜在抑制剂。已发现两种可能的噻吩并咪唑系列的[3,4-d]异构体在体外和体内都是有效的胃酸分泌抑制剂。结构活性关系表明，特别是在吡啶部分的4位具有额外的电子要求特性的亲脂性烷氧基，苄氧基和苯氧基取代基与未取代的噻吩并[3,4-d]咪唑结合会导致具有高活性的化合物。良好的化学稳定性。噻吩并[3,4-d]咪唑部分的各种取代方式导致较低的生物活性。选择了七氟丁氧基衍生物萨维拉唑（HOE 731，5d）进行进一步开发，目前正在临床评估中。
• Therapeutically active chloro substituted benzimidazoles
  申请人：AB Hassle

  公开号：US04965269A1

  公开（公告）日：1990-10-23

  The novel compounds of the formula I ##STR1## wherein Cl is in 5 or 6 position and whereby R is the group --CH.sub.2 OCOOR.sup.1, wherein R.sup.1 is a straight or branched alkyl containing 1-6 carbon atoms or benzyl, or R.sup.1 is the group --(CH.sub.2).sub.n ##STR2## --(CH.sub.2).sub.n COOH or --(CH.sub.2).sub.n SO.sub.3 H wherein n is 1-6 and physiologically acceptable salts thereof as well as intermediates, pharmaceutical compositions containing such compounds as active ingredient, and the use of the compounds in medicine.

  该公式的新化合物为I ##STR1## 其中Cl位于5或6位置，R为--CH.sub.2 OCOOR.sup.1基团，其中R.sup.1为含有1-6个碳原子的直链或支链烷基或苄基，或R.sup.1为--(CH.sub.2).sub.n ##STR2## --(CH.sub.2).sub.n COOH或--(CH.sub.2).sub.n SO.sub.3 H基团，其中n为1-6，以及其生理学上可接受的盐以及中间体，含有这种化合物作为活性成分的药物组合物，以及这些化合物在医学上的用途。
• Picoline derivative useful as gastric acid secretion inhibitors
  申请人：Byk Gulden Lomberg Chemische Fabrik GmbH

  公开号：US04686230A1

  公开（公告）日：1987-08-11

  Picoline derivatives of the formula I ##STR1## wherein the substituents have the meanings given in the description, and their salts are new compounds having a pronounced protective action on the stomach.

  式I的吡啶醛衍生物##STR1##，其中取代基具有描述中给出的含义，它们的盐是一种对胃具有显著保护作用的新化合物。
• Fluoroalkoxy substituted benzimidazoles useful as gastric acid secretion
  申请人：BYK Gulden Lomberg Chemische Fabrik GmbH

  公开号：US04758579A1

  公开（公告）日：1988-07-19

  Dialkoxypyridines of formula I ##STR1## wherein R1 is 1-3C-alkyl which is completely or predominantly substituted by fluorine, or a chlorodifluoromethyl radical and R1' is hydrogen, halo, trifluoromethyl, 1-3C-alkyl, or 1-3C-alkoxy which is optionally completely or predominantly substituted by fluorine, or R1 and R1', together with the oxygen atom to which R1 is bonded, are 1-2C-alkylenedioxy, which is optionally completely or partly substituted by fluorine, or chlorotrifluoroethylenedioxy, R3 is 1-3C-alkoxy, one of R2 and R4 is 1-3C-alkoxy and the other is a hydrogen atom or 1-3C-alkyl and n is 0 or 1, and salts thereof are new compounds with a pronounced protective action on the stomach. Processes for preparing these compounds, medicaments containing them and their use, as well as intermediate compounds and their use for preparing the subject dialkoxypyridines, are disclosed.

  式I的二烷氧基吡啶##STR1##其中R1是完全或主要由氟或氯二氟甲基取代的1-3C-烷基，R1'是氢、卤素、三氟甲基、1-3C-烷基或1-3C-烷氧基，后者可以选择性地完全或主要由氟取代，或R1和R1'连同与R1连接的氧原子一起，是1-2C-烷二氧基，后者可以选择性地完全或部分由氟取代，或氯三氟乙烯二氧基，R3是1-3C-烷氧基，R2和R4中的一个是1-3C-烷氧基，另一个是氢原子或1-3C-烷基，n为0或1，以及它们的盐是一种对胃具有显著保护作用的新化合物。揭示了制备这些化合物的方法，含有它们的药物及其用途，以及中间体化合物及其用途用于制备所述二烷氧基吡啶。