5,6-二氟靛红 | 774-47-0

• 物质功能分类: 有机原料 - 有机氟化合物 - 氟靛红系列
• 分子结构分类: 有机化合物 - 有机杂环化合物 - 吲哚及其衍生物
• 中文名称: 5,6-二氟靛红
• 中文别名: 5,6-二氟吲哚啉-2,3-二酮；5,6-二氟-吲哚啉-2,3-二酮
• 英文名称: 5,6-difluoroisatin
• 英文别名: 5,6-difluoroindoline-2,3-dione；5,6-difluoro-1H-indole-2,3-dione
• CAS: 774-47-0
• 化学式: C₈H₃F₂NO₂
• mdl: MFCD02998377
• 分子量: 183.114
• InChiKey: FQIJOGDQWRLSQW-UHFFFAOYSA-N

物化性质

• 熔点：
  218-220℃
• 密度：
  1.578±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  46.2
• 氢给体数：
  1
• 氢受体数：
  4

安全信息

• 海关编码：
  2933990090
• 危险性防范说明：
  P261,P280,P305+P351+P338
• 危险性描述：
  H302,H315,H319,H332,H335
• 储存条件：
  室温且干燥环境下使用。

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: 5,6-Difluoroisatin
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: 5,6-Difluoroisatin
CAS number: 774-47-0

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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, refrigerated.
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: C8H3F2NO2
Molecular weight: 183.1

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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, hydrogen fluoride.

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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

反应信息

• 作为反应物：
  描述：

  5,6-二氟靛红 在 对甲苯磺酰肼 作用下， 以 甲醇 为溶剂， 反应 24.0h， 以52%的产率得到3-diazo-5,6-difluoroindolin-2-one
  参考文献：
  名称：

  5，6-二氢吡唑并[1,5-c]喹唑啉-1-羧酸乙酯作为DNA促旋酶的催化抑制剂的鉴定。

  摘要：

  氟喹诺酮类是临床上用于治疗多种细菌感染和靶向细菌II型拓扑异构酶（DNA促旋酶和拓扑异构酶IV）的一类抗菌剂。然而，氟喹诺酮类药物很强效，长时间使用对细菌具有抵抗力，这限制了它们在临床上的使用。喹唑啉-2,4-二酮也靶向细菌II型拓扑异构酶，与氟喹诺酮类相似，对细菌的耐药性不敏感，但是，与氟喹诺酮类相比，它们的药效低下。为了满足对抗菌素开发的不断增长的需求，开发了九种修饰的喹唑啉-2,4-二酮，以探测喹唑啉-2,4-二酮的结构修饰，以寻找与细菌II型拓扑异构酶，DNA促旋酶的新结合接触。化合物对DNA促旋酶超螺旋活性的抑制作用评估显示，新型的5,6-二氢吡唑并[1,5-c]喹唑啉-1-羧酸乙酯衍生物是DNA促旋酶的适度抑制剂，IC50为3.5μM。但是，这种5,6-二氢吡唑并[1,5-c]喹唑啉-1-羧酸乙酯不能像氟喹诺酮或典型的喹唑啉-2,4-二酮那样捕获催化中间体。因此，在这项工作中发现的5

  DOI：

  10.1016/j.bmc.2020.115439
• 作为产物：
  描述：

  (2E)-N-(3,4-difluorophenyl)-2-hydroxyiminoacetamide 在 硫酸 作用下， 以 水 为溶剂， 反应 0.5h， 以86%的产率得到5,6-二氟靛红
  参考文献：
  名称：

  在取代喹啉-4-羧酸的合成中利用溶解度差异实现区域控制

  摘要：

  描述了一种用于区域控制合成取代喹啉-4-羧酸的实用方法。产品喹啉区域异构体之间的溶解度差异使其易于分离，从而避免了任何具有挑战性的色谱纯化，并允许通过三个步骤从市售苯胺中获得高度取代的喹啉化合物。

  DOI：

  10.1055/s-0035-1561395

文献信息

• Scaffold-Inspired Enantioselective Synthesis of Biologically Important Spiro[pyrrolidin-3,2′-oxindoles] with Structural Diversity through Catalytic Isatin-Derived 1,3-Dipolar Cycloadditions
  作者：Feng Shi、Zhong-Lin Tao、Shi-Wei Luo、Shu-Jiang Tu、Liu-Zhu Gong

  DOI：10.1002/chem.201200358

  日期：2012.5.29

  Catalytic asymmetric construction of the biologically important spiro[pyrrolidin‐3,2′‐oxindole] scaffold with contiguous quaternary stereogenic centers in excellent stereoselectivities (up to >99:1 d.r., 98 % ee) has been established by using an organocatalytic 1,3‐dipolar cycloaddition of isatin‐based azomethine ylides. This protocol represents the first example of catalytic asymmetric 1,3‐dipolar

  通过使用有机催化1,3，已经建立了具有重要立体选择性（具有高达99：1 dr，98％ee的连续性）的具有重要季螺立体构象中心的重要生物学螺旋[pyrrolidin-3,2'-oxindole]支架的催化不对称结构。 基于靛红的甲亚胺烷基化物的偶极环加成。该方案代表了催化不对称1,3-偶极环加成反应的第一个例子，涉及不对称环酮就地生成的甲亚胺基化物。另外，对反应的过渡态进行了理论计算以了解立体化学。使用这些螺[吡咯烷酮-3,2'-羟吲哚]的初步生物测定显示，几种化合物对SW116细胞显示中等程度的细胞毒性。
• Asymmetric cross aldol addition of isatins with α,β-unsaturated ketones catalyzed by a bifunctional Brønsted acid–Brønsted base organocatalyst
  作者：Guo-Gui Liu、Hua Zhao、Yu-Bao Lan、Bin Wu、Xiao-Fei Huang、Jian Chen、Jing-Chao Tao、Xing-Wang Wang

  DOI：10.1016/j.tet.2012.03.042

  日期：2012.5

  The asymmetric cross-aldol reaction of isatins with α,β-unsaturated ketones has been developed under catalysis by a Cinchona alkaloid-derivated bifunctional Brønsted acid–Brønsted base catalyst, affording the aldol adducts in moderate to good yields (18–98%) with moderate to good enantioselectivities (30–97%). The noncovalent organo-catalyzed asymmetric cross-aldol reaction displays a broad substrate

  在金鸡纳生物碱衍生的双官能布朗斯台德酸-布朗斯台德碱催化剂的催化下，开发出了靛红与α，β-不饱和酮的不对称交叉羟醛反应，提供了中等至良好收率（18-98％）的羟醛加合物。中度到良好的对映选择性（30–97％）。尽管两个反应伙伴的电子和位阻性质对反应性和立体控制都具有相当大且规则的影响，但非共价有机催化的不对称交叉羟醛缩醛反应显示出较宽的底物范围和宽泛的官能团耐受性。
• Indolo[2,1-biquinazoline-6,12-dione antibacterial compounds and methods
  申请人：PathoGenesis Corporation

  公开号：US05441955A1

  公开（公告）日：1995-08-15

  Methods, compounds and compositions are provided form inhibiting the growth of pathogenic mycobacteria in vitro and of treatment of pathogenic mycobacterial infections in vivo using indolo[2,1-b]quinazoline-6,12-dione compounds of the formula (I): ##STR1## wherein A, B, C, D, E, F, G and H are independently selected from carbon and nitrogen, or A and B or C and D can be taken together to be nitrogen or sulfur, and the pharmaceutically acceptable salts thereof. The methods, compounds and compositons are particularly useful for inhibiting the growth of Mycobacterium tuberculosis, and may be used alone, or in combination with other anti-Mycobacterium tuberculosis agents, such as isoniazid, rifampin, pyrazinamide, rifabutin, streptomycin and ciprofloxacin, to provide new agents for the treatment of tuberculosis, including multidrug-resistant tuberculosis (MDRTB).

  提供了一种用于体外抑制病原性分枝杆菌生长和用于体内治疗病原性分枝杆菌感染的方法、化合物和组合物，使用式(I)的吲哚并[2,1-b]喹唑啉-6,12-二酮化合物：##STR1## 其中A、B、C、D、E、F、G和H独立地选自碳和氮，或A和B或C和D可以结合在一起成为氮或硫，并且其药学上可接受的盐。这些方法、化合物和组合物特别适用于抑制结核分枝杆菌的生长，并可单独使用，或与其他抗结核分枝杆菌药物（如异烟肼、利福平、吡嗪酰胺、利福布汀、链霉素和环丙沙星）结合使用，以提供用于治疗结核病的新药物，包括多药耐药结核病（MDRTB）。
• Intermediates for preparing 1,4-dihydro-4-oxo-quinoline-3-carboxylic acid esters
  申请人：PFIZER INC.

  公开号：EP0342849A3

  公开（公告）日：1990-03-14

  Compounds of the formula: wherein Y is OR¹, fluoro, chloro, methyl, R¹, and R³ are independently selected from hydrogen and C₁-C₄ alkyl, R² is C₁-C₄ alkyl and X is fluoro, chloro or bromo, with the proviso that when Y is OH, X cannot be bromo and with the proviso that X can be fluoro only if R² is methyl.

  式的化合物： 其中Y为OR¹，氟，氯，甲基， R¹和R³分别选自氢和C₁-C₄烷基，R²为C₁-C₄烷基，X为氟，氯或溴，但当Y为OH时，X不能为溴，且X只能为氟当且仅当R²为甲基。
• Eosin Y-catalyzed one-pot synthesis of spiro[4H-pyran-oxindole] under visible light irradiation
  作者：Meng-Nan Chen、Jia-Qi Di、Jiao-Mian Li、Li-Ping Mo、Zhan-Hui Zhang

  DOI：10.1016/j.tet.2020.131059

  日期：2020.4

  An efficient and simple synthetic approach has been developed for the preparation of biologically interesting spiro[oxindole-3,4'-(4′H-pyran)] derivatives via visible light-mediated one-pot, three-component reaction of isatins, 1,3-dicarbonyl compounds and malononitrile by using an inexpensive organic dye, Na2 eosin Y, as the photocatalyst in aqueous ethyl lactate at ambient temperature. The substrate

  一种高效和简单的合成方法已被开发用于生物有趣螺的制备[羟吲哚3,4' - （4' ħ吡喃）]通过可见光介导的单罐，靛红的三组分反应衍生物，1-在环境温度下，使用廉价的有机染料Na 2曙红Y作为光催化剂，在乳酸乙酯水溶液中制备1,3-二羰基化合物和丙二腈。这种三组分反应的底物范围扩大到线性1,3-二羰基化合物作为可行的起始原料。版权所有。