2-(二氟甲氧基)硝基苯 | 22225-77-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 中文名称: 2-(二氟甲氧基)硝基苯
• 中文别名: 2-硝基二氟甲氧基苯
• 英文名称: 1-difluoromethoxy-2-nitro-benzene
• 英文别名: 1-(difluoromethoxy)-2-nitrobenzene；2-(difluoromethoxy)-nitrobenzene；2-nitro(difluoromethoxy)benzene；2-difluoromethoxynitrobenzene；1-difluoromethoxy-2-nitrobenzene；1-Nitro-2-difluormethoxy-benzol
• CAS: 22225-77-0
• 化学式: C₇H₅F₂NO₃
• mdl: MFCD00221470
• 分子量: 189.118
• InChiKey: VICWTNGFGCVEHT-UHFFFAOYSA-N

物化性质

• 沸点：
  73 °C
• 稳定性/保质期：
  <p><b></b></p>

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  13
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.142
• 拓扑面积：
  55
• 氢给体数：
  0
• 氢受体数：
  5

安全信息

• 危险等级：
  IRRITANT
• 危险品标志：
  Xi
• 安全说明：
  S23,S36/37/39
• 危险类别码：
  R20/21/22
• 海关编码：
  2909309090
• 危险性防范说明：
  P501,P270,P264,P280,P302+P352,P337+P313,P305+P351+P338,P362+P364,P332+P313,P301+P312+P330
• 危险性描述：
  H302,H315,H319
• 储存条件：
  <p><br></p>

SDS

Name:	1-(Difluoromethoxy)-2-nitrobenzene, 97% Material Safety Data Sheet
Synonym:
CAS:	22225-77-0

Section 1 - Chemical Product MSDS Name: 1-(Difluoromethoxy)-2-nitrobenzene, 97% Material Safety Data Sheet
Synonym:

---

SECTION 2 - COMPOSITION, INFORMATION ON INGREDIENTS

CAS#	Chemical Name	content	EINECS#
22225-77-0	1-(Difluoromethoxy)-2-nitrobenzene	97%	unlisted

Hazard Symbols: XI
Risk Phrases: 36/37/38

---

SECTION 3 - HAZARDS IDENTIFICATION EMERGENCY OVERVIEW Irritating to eyes, respiratory system and skin. Potential Health Effects
Eye:
Causes eye irritation.
Skin:
Causes skin irritation. May be harmful if absorbed through the skin.
Ingestion:
May cause irritation of the digestive tract. May be harmful if swallowed.
Inhalation:
Causes respiratory tract irritation. May be harmful if inhaled.
Chronic:
Not available.

---

SECTION 4 - FIRST AID MEASURES
Eyes:
Flush eyes with plenty of water for at least 15 minutes, occasionally lifting the upper and lower eyelids. Get medical aid.
Skin:
Get medical aid. Flush skin with plenty of water for at least 15 minutes while removing contaminated clothing and shoes.
Ingestion:
Get medical aid. Wash mouth out with water.
Inhalation:
Remove from exposure and move to fresh air immediately. If not breathing, give artificial respiration. If breathing is difficult, give oxygen. Get medical aid.
Notes to Physician:
Treat symptomatically and supportively.

---

SECTION 5 - FIRE FIGHTING MEASURES
General Information:
As in any fire, wear a self-contained breathing apparatus in pressure-demand, MSHA/NIOSH (approved or equivalent), and full protective gear.
Extinguishing Media:
Use water spray, dry chemical, carbon dioxide, or chemical foam.

---

SECTION 6 - ACCIDENTAL RELEASE MEASURES
General Information: Use proper personal protective equipment as indicated in Section 8.
Spills/Leaks:
Absorb spill with inert material (e.g. vermiculite, sand or earth), then place in suitable container.

---

SECTION 7 - HANDLING and STORAGE
Handling:
Avoid breathing dust, vapor, mist, or gas. Avoid contact with skin and eyes.
Storage:
Store in a cool, dry place. Store in a tightly closed container.

---

SECTION 8 - EXPOSURE CONTROLS, PERSONAL PROTECTION
Engineering Controls:
Facilities storing or utilizing this material should be equipped with an eyewash facility and a safety shower. Use adequate ventilation to keep airborne concentrations low. Exposure Limits CAS# 22225-77-0: Personal Protective Equipment
Eyes:
Not available.
Skin:
Wear appropriate protective gloves to prevent skin exposure.
Clothing:
Wear appropriate protective clothing to prevent skin exposure.
Respirators:
Follow the OSHA respirator regulations found in 29 CFR 1910.134 or European Standard EN 149. Use a NIOSH/MSHA or European Standard EN 149 approved respirator if exposure limits are exceeded or if irritation or other symptoms are experienced.

---

SECTION 9 - PHYSICAL AND CHEMICAL PROPERTIES
Physical State: Liquid
Color: colorless - pale yellow
Odor: Not available.
pH: Not available.
Vapor Pressure: Not available.
Viscosity: Not available.
Boiling Point: 73 - 75 deg C @0.3mmHg
Freezing/Melting Point: Not available.
Autoignition Temperature: Not available.
Flash Point: Not available.
Explosion Limits, lower: Not available.
Explosion Limits, upper: Not available.
Decomposition Temperature:
Solubility in water:
Specific Gravity/Density:
Molecular Formula: C7H5F2NO3
Molecular Weight: 189

---

SECTION 10 - STABILITY AND REACTIVITY
Chemical Stability:
Not available.
Conditions to Avoid:
Incompatible materials.
Incompatibilities with Other Materials:
Oxidizing agents, reducing agents, bases.
Hazardous Decomposition Products:
Nitrogen oxides, carbon monoxide, carbon dioxide, fluorine, hydrogen fluoride gas.
Hazardous Polymerization: Has not been reported

---

SECTION 11 - TOXICOLOGICAL INFORMATION RTECS#: CAS# 22225-77-0 unlisted.
LD50/LC50:
Not available.
Carcinogenicity:
1-(Difluoromethoxy)-2-nitrobenzene - Not listed by ACGIH, IARC, or NTP.

---

SECTION 12 - ECOLOGICAL INFORMATION

---

SECTION 13 - DISPOSAL CONSIDERATIONS Dispose of in a manner consistent with federal, state, and local regulations.

---

SECTION 14 - TRANSPORT INFORMATION IATA No information available. IMO No information available. RID/ADR No information available.

---

SECTION 15 - REGULATORY INFORMATION European/International Regulations European Labeling in Accordance with EC Directives
Hazard Symbols: XI
Risk Phrases:
R 36/37/38 Irritating to eyes, respiratory system and skin.
Safety Phrases:
S 26 In case of contact with eyes, rinse immediately with plenty of water and seek medical advice. S 37/39 Wear suitable gloves and eye/face protection. WGK (Water Danger/Protection) CAS# 22225-77-0: No information available. Canada None of the chemicals in this product are listed on the DSL/NDSL list. CAS# 22225-77-0 is not listed on Canada's Ingredient Disclosure List. US FEDERAL TSCA CAS# 22225-77-0 is not listed on the TSCA inventory. It is for research and development use only.

---

SECTION 16 - ADDITIONAL INFORMATION
MSDS Creation Date: 6/10/2003 Revision #0 Date: Original. The information above is believed to be accurate and represents the best information currently available to us. However, we make no warranty of merchantability or any other warranty, express or implied, with respect to such information, and we assume no liability resulting from its use. Users should make their own investigations to determine the suitability of the information for their particular purposes. In no way shall the company be liable for any claims, losses, or damages of any third party or for lost profits or any special, indirect, incidental, consequential or exemplary damages, howsoever arising, even if the company has been advised of the possibility of such damages.

---

SECTION 16 - ADDITIONAL INFORMATION
N/A

制备方法与用途

合成制备方法

---

用途

---

反应信息

• 作为反应物：
  描述：

  2-(二氟甲氧基)硝基苯 在 palladium on activated charcoal 氢气 作用下， 以 乙醇 、 水 为溶剂， 反应 0.33h， 以76%的产率得到2-(二氟甲氧基)苯胺
  参考文献：
  名称：

  1-（二氟甲氧基苯基）喹诺酮-3-羧酸的合成及体外抗菌活性

  摘要：

  我们报道了其中二氟甲氧基部分被用作卤素替代物的N-1-苯基喹诺酮的合成。关于N-1-卤代苯基喹诺酮类药物的抗菌活性进行了讨论。

  DOI：

  10.1002/jps.2600780716
• 作为产物：
  描述：

  硝苯酚 在 sodium hydroxide 作用下， 以 1,4-二氧六环 、 水 为溶剂， 生成 2-(二氟甲氧基)硝基苯
  参考文献：
  名称：

  \x9b3-(4-phenylpiperazin-1-yl)propyl-amino, thio and oxy!-pyridine,

  摘要：

  本发明涉及以下式I的新型α1-肾上腺素受体拮抗剂：##STR1## 其中：p为0或1；t为0, 1或2；X为O、S或NR.sup.6（其中R.sup.6为羟基或（C.sub.1-6）烷基）；Y和Z独立地为CH或N；R.sup.1为羟基、羟基、卤素、硝基、氨基、氰基、（C.sub.1-4）烷基硫基、乙酰氨基、三氟乙酰氨基、甲磺酰氨基、（C.sub.1-6）烷基、（C.sub.3-6）环烷基、（C.sub.3-6）环烷基（C.sub.1-4）烷基、噁唑-2-基、芳基、杂环芳基、芳基（C.sub.1-4）烷基、杂环芳基（C.sub.1-4）烷基、（C.sub.1-6）烷氧基、（C.sub.3-6）环烷氧基、（C.sub.3-6）环烷基（C.sub.1-4）烷氧基、2-丙炔氧基、芳氧基、杂环芳氧基、芳基（C.sub.1-4）烷氧基或杂环芳基（C.sub.1-4）烷氧基（其中烷基可选择性地用1至3个卤原子取代，芳基或杂环芳基可选择性地用1至2个独立选择的卤素和氰基取代）；R.sup.2为羟基、羟基、卤素、氰基、（C.sub.1-6）烷基或（C.sub.1-6）烷氧基（其中烷基可选择性地用1至3个卤原子取代）；R.sup.3为-C（O）R.sup.7（其中R.sup.7为（C.sub.1-6）烷基、（C.sub.3-6）环烷基、二（C.sub.1-4）烷基氨基、N-（C.sub.1-4）烷基-N-（C.sub.1-4）烷氧基氨基、（C.sub.1-4）烷基（（C.sub.1-4）烷氧基）氨基、吡咯烷-1-基、哌啶-1-基、吗啉-4-基或哌嗪-1-基）；R.sup.4为卤素、羟基、氰基、（C.sub.1-6）烷基或（C.sub.1-6）烷氧基；R.sup.5为（C.sub.1-6）烷基；以及其药学上可接受的盐和N-氧化物。

  公开号：

  US05688795A1

文献信息

• Difluoromethylation of alcohols with TMSCF2Br in water: A new insight into the generation and reactions of difluorocarbene in a two-phase system
  作者：Rongyi Zhang、Chuanfa Ni、Qiqiang Xie、Jinbo Hu

  DOI：10.1016/j.tet.2020.131676

  日期：2020.12

  ved reactions can be performed in the presence of water, the reaction of difluorocarbene using water as the only reaction medium is rare. By using TMSCF2Br as a unique difluorocarbene reagent and KHF2 as a mild activator, the difluoromethylation of liquid alcohols in water is described. This research not only develops an environmentally benign process for the synthesis of difluoromethyl ethers, but

  尽管可以在水的存在下进行许多涉及二氟卡宾的反应，但是使用水作为唯一反应介质的二氟卡宾的反应很少。通过使用TMSCF 2 Br作为独特的二氟卡宾试剂和KHF 2作为温和的活化剂，描述了液体醇在水中的二氟甲基化。这项研究不仅为二氟甲基醚的合成开发了一种环境友好的方法，而且为油水两相系统中二氟卡宾的生成和反应提供了新的见识。
• Three step procedure for the preparation of aromatic and aliphatic difluoromethyl ethers from phenols and alcohols using a chlorine/fluorine exchange methodology
  作者：William R. Dolbier、Fei Wang、Xiaojun Tang、Charles S. Thomoson、Linhua Wang

  DOI：10.1016/j.jfluchem.2014.01.018

  日期：2014.4

  Difluoromethyl ethers are prepared from phenols in three steps via their respective formate ester derivatives. The formates are first converted to dichloromethyl ethers by treatment with PCl5. These ethers are then induced to undergo chlorine/fluorine exchange to form the respective difluoromethyl ethers. The chlorine/fluorine exchange is carried out by either a room temperature, solvolytic process using THF-5HF

  二氟甲基醚是由苯酚通过它们各自的甲酸酯衍生物分三步制备的。的甲酸盐首先通过用五氯化磷转化为二氯甲基醚。然后，这些醚是诱导经历氯/氟交换，以形成相应的二氟甲基醚。氯/氟交换由或室温，用THF-5HF或Et溶剂化过程中进行3的N- 3HF作为交换介质，其中HF是氟的最终来源，或者通过在环丁砜在125℃，其中KF是氟源的直接位移过程。由一个或另一个这些过程中，几乎所有的酚和电子差富电子，可以在良好的收益率转化为各自的二氟甲基醚。脂族醇也能够被转换为使用的Et它们二氟甲基醚衍生物3的N- 3HF交换介质。
• Visible-Light Photoredox Difluoromethylation of Phenols and Thiophenols with Commercially Available Difluorobromoacetic Acid
  作者：Jinyan Yang、Min Jiang、Yunhe Jin、Haijun Yang、Hua Fu

  DOI：10.1021/acs.orglett.7b01118

  日期：2017.5.19

  A simple and efficient visible-light photoredox one-pot method for difluoromethylation of phenols and thiophenols has been developed. The protocol uses commercially available, inexpensive, and easy handling difluorobromoacetic acid as the difluoromethylating agent, and the diverse O- and S-difluoromethylated products were prepared in good yields with tolerance of many functional groups.

  已开发出一种简单有效的酚和硫酚二氟甲基化的可见光氧化还原一锅法。该方案使用可商购的，廉价的和易于处理的二氟溴乙酸作为二氟甲基化剂，并且以高收率制备了多种O-和S-二氟甲基化产物，并具有许多官能团的耐受性。
• Chlorodifluoromethyl phenyl sulfone: a novel non-ozone-depleting substance-based difluorocarbene reagent for O- and N-difluoromethylations
  作者：Ji Zheng、Ya Li、Laijun Zhang、Jinbo Hu、Gerrit Joost Meuzelaar、Hans-Jürgen Federsel

  DOI：10.1039/b713156a

  日期：——

  Chlorodifluoromethyl phenyl sulfone, a previously unknown compound that can be readily prepared from non-ODS-based precursors, was found to act as a robust difluorocarbene reagent for O- and N-difluoromethylations.

  氯二氟甲基苯砜，一种先前未知的化合物，可以通过非臭氧层破坏性物质前体轻松制备，发现其可作为O-和N-二氟甲基化反应的强健二氟卡宾试剂。
• Deoxygenative <i>gem</i>-difluoroolefination of carbonyl compounds with (chlorodifluoromethyl)trimethylsilane and triphenylphosphine
  作者：Fei Wang、Lingchun Li、Chuanfa Ni、Jinbo Hu

  DOI：10.3762/bjoc.10.32

  日期：——

  phosphonium ylide represents one of the most straightforward methods. RESULTS: The combination of (chlorodifluoromethyl)trimethylsilane (TMSCF2Cl) and triphenylphosphine (PPh3) can be used for the synthesis of gem-difluoroolefins from carbonyl compounds. Comparative experiments demonstrate that TMSCF2Cl is superior to (bromodifluoromethyl)trimethylsilane (TMSCF2Br) and (trifluoromethyl)trimethylsilane

  背景：1,1-二氟烯烃不仅可以作为有机合成的有价值的前体，还可以作为酶抑制剂的生物电子等排体。在其制备的各种方法中，用二氟亚甲基鏻叶立德进行羰基烯化是最直接的方法之一。结果：（氯二氟甲基）三甲基硅烷（TMSCF2Cl）和三苯基膦（PPh3）的组合可用于由羰基化合物合成钆二氟烯烃。对比实验表明，在该反应中，TMSCF2Cl 优于（溴二氟甲基）三甲基硅烷（TMSCF2Br）和（三氟甲基）三甲基硅烷（TMSCF3）。结论：与许多其他在 PPh3 存在下的 Wittig 型 gem-二氟烯烃化反应类似，TMSCF2Cl 与醛和活化酮的反应是有效的。