苯并环丁烯酮 | 3469-06-5

• 物质功能分类: 有机原料 - 酮类化合物
• 分子结构分类: 有机化合物 - 有机氧化合物
• 中文名称: 苯并环丁烯酮
• 英文名称: benzocyclobutenone
• 英文别名: bicyclo[4.2.0]octa-1,3,5-trien-7-one；benzocyclobutanone；bicyclo[4.2.0]octa-1(6),2,4-trien-7-one；benzocyclobuten-1(2H)-one；benzocyclobuten-1-one
• CAS: 3469-06-5
• 化学式: C₈H₆O
• mdl: MFCD01652340
• 分子量: 118.135
• InChiKey: XOGFXHMYHKGOGP-UHFFFAOYSA-N

物化性质

• 沸点：
  71-72 °C(Press: 2 Torr)
• 密度：
  1.214±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.125
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

安全信息

• 海关编码：
  3902200000
• 储存条件：
  | 2-8°C |

SDS

Material Safety Data Sheet

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Section 1. Identification of the substance
Product Name: Benzocyclobutenone
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: Benzocyclobutenone
CAS number: 3469-06-5

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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: C8H6O
Molecular weight: 118.1

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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.

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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

制备方法

有机合成中间体，可用作香料的防挥发剂。在染色工业中用作媒染剂和固着剂，也可用于制取香料或增加香味。

用途简介

暂无内容。

反应信息

• 作为反应物：
  描述：

  苯并环丁烯酮 在 三(2-氯乙基)胺 、 硫酸 、 三氟化硼乙醚 、 magnesium 作用下， 以 氯仿 、 苯 为溶剂， 生成 2-苄基吲哚
  参考文献：
  名称：

  分解酸催化叔丁基苯并环丁烯。循环中的新合成方法

  摘要：

  通过NH 3 BF 3 -Et 2 O试剂处理在官能碳上取代的苯并环丁烯醇，可以合成相应的叔叠氮化物。后者通过酸催化分解，产生2-取代的吲哚。通过直接用肼添加和浓硫酸处理醇，可获得相似的结果。这种吲哚核的新途径也扩展到多环吲哚的合成。

  DOI：

  10.1016/s0040-4020(01)96432-4
• 作为产物：
  描述：

  2,2'-亚甲基双-(4-甲基-6-叔丁基苯酚) 在 aluminum oxide 、 N,N-二异丙基乙胺 、 亚磷酸二乙酯 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 20.0~150.0 ℃ 、4.67 kPa 条件下， 反应 101.0h， 生成 苯并环丁烯酮
  参考文献：
  名称：

  Synthetic Approach to Benzocyclobutenones Using Visible Light and a Phosphonate Auxiliary

  摘要：

  Reported herein is a two-step procedure to synthesize benzocyclobutenones from (o-alkylbenzoyl)-phosphonates. It consists of a visible-light-driven cyclization reaction forming phosphonate-substituted benzocyclobutenols and subsequent elimination reaction of the H-phosphonate, which assumes a key role as the recyclable auxiliary. A wide variety of functionalized benzocyclobutenones, which include those difficult to synthesize by conventional methods, are efficiently synthesized.

  DOI：

  10.1021/acs.orglett.8b00160

文献信息

• Ruthenium-Catalyzed Enantioselective Hydrogenation of Hydrazones
  作者：Christopher H. Schuster、James F. Dropinski、Michael Shevlin、Hongming Li、Song Chen

  DOI：10.1021/acs.orglett.0c02756

  日期：2020.10.2

  Prochiral hydrazones undergo efficient and highly selective hydrogenation in the presence of a chiral diphosphine ruthenium catalyst, yielding enantioenriched hydrazine products (up to 99% ee). The mild reaction conditions and broad functional group tolerance of this method allow access to versatile chiral hydrazine building blocks containing aryl bromide, heteroaryl, alkyl, cycloalkyl, and ester substituents

  前手性在手性二膦钌催化剂的存在下进行了高效且高度选择性的氢化反应，生成了对映体富集的肼产品（ee高达99％）。该方法温和的反应条件和宽泛的官能团耐受性允许使用通用的手性肼结构单元，其中包含芳基溴化物，杂芳基，烷基，环烷基和酯取代基。该方法也已在> 150 g规模上得到证明，可为制备活性药物成分提供有价值的肼中间体。
• Divergent Iron-Catalyzed Coupling of<i>O</i>-Acyloximes with Silyl Enol Ethers
  作者：Hai-Bin Yang、Nicklas Selander

  DOI：10.1002/chem.201605636

  日期：2017.2.3

  An iron‐catalyzed coupling reaction of O‐acyloximes and O‐benzoyl amidoximes with silyl enol ethers is reported. The protocol provides access to functionalized pyrroles, 1,6‐ketonitriles, pyrrolines and imidazolines via carbon‐centered radicals generated from an initially formed iminyl radical. The intramolecular cyclization and ring‐opening processes of the iminyl radical take place preferentially

  据报道，O-酰基肟和O-苯甲酰a肟与甲硅烷基烯醇醚的铁催化偶联反应。该协议提供了通过最初形成的亚胺基生成的碳中心基团来访问官能化的吡咯，1,6-酮腈，吡咯啉和咪唑啉的途径。亚胺基的分子内环化和开环过程优先于通过1,3-氢转移进行的反应，从而提供了对肟催化的铁催化反应的见解。廉价且环保的铁催化剂，广泛的底物范围和官能团的相容性使该方案可用于合成有价值的含氮产物。
• Photoinduced Copper-Catalyzed Asymmetric C–O Cross-Coupling
  作者：Jun Chen、Yu-Jie Liang、Peng-Zi Wang、Guo-Qing Li、Bin Zhang、Hao Qian、Xiao-Die Huan、Wei Guan、Wen-Jing Xiao、Jia-Rong Chen

  DOI：10.1021/jacs.1c06535

  日期：2021.8.25

  from the presence of heteroatoms. Although considerable advances have recently been achieved in radical-involved catalytic asymmetric C–N bond formation, there has been little progress in the corresponding C–O bond-forming processes. Here, we describe a photoinduced copper-catalyzed cross-coupling of readily available oxime esters and 1,3-dienes to generate diversely substituted allylic esters with high

  碳-杂原子键的构建是有机化学中最活跃的研究领域之一，因为有机分子的功能通常来源于杂原子的存在。尽管最近在涉及自由基的催化不对称 C-N 键形成方面取得了相当大的进展，但相应的 C-O 键形成过程进展甚微。在这里，我们描述了容易获得的肟酯和 1,3-二烯的光诱导铜催化交叉偶联，以产生具有高区域和对映选择性（> 75 个例子；高达 95% ee）的多种取代的烯丙酯。该反应在室温下在紫色发光二极管 (LED) 的激发下进行，并具有使用单一、地球上丰富的铜基手性催化剂既是自由基生成的光氧化还原催化剂，也是 C-O 偶联中不对称诱导的来源。结合实验和密度泛函理论 (DFT) 计算研究表明，从作为双功能试剂的氧化还原活性肟酯和 1,3-二烯通过自由基 - 极性交叉过程形成 π-烯丙基铜配合物。
• Site‐Selective C–C Cleavage of Benzocyclobutenones Enabled by a Blocking Strategy Using Nickel Catalysis
  作者：Jing‐Hong Guo、Yu Liu、Xin‐Cheng Lin、Tian‐Mu Tang、Bi‐Qin Wang、Ping Hu、Ke‐Qing Zhao、Feijie Song、Zhang‐Jie Shi

  DOI：10.1002/anie.202106709

  日期：2021.8.23

  Controlling the chemo- and regioselectivity of transition-metal-catalyzed C−C activation remains a great challenge. The transformations of benzocyclobutenones (BCBs) usually involve the cleavage of C1−C2 bond. In this work, an unprecedented highly selective cleavage of C1−C8 bond with the insertion of alkynes is achieved by using blocking strategy via Ni catalysis, providing an efficient method for

  控制过渡金属催化的 C-C 活化的化学和区域选择性仍然是一个巨大的挑战。苯并环丁烯酮 (BCB) 的转化通常涉及 C1-C2 键的断裂。在这项工作中，通过 Ni 催化使用封闭策略实现了前所未有的 C1-C8 键的高选择性裂解和炔烃的插入，为合成 1,8-二取代萘提供了一种有效的方法。值得注意的是，转化后可以很容易地去除封闭基团。
• [EN] TRICYCLIC HETEROCYCLIC DERIVATIVES<br/>[FR] DÉRIVÉS HÉTÉROCYCLIQUES TRICYCLIQUES
  申请人：ORGANON NV

  公开号：WO2009037220A1

  公开（公告）日：2009-03-26

  The present invention relates to a tricyclic heterocyclic derivative of Formula (I) wherein the variables are as defined in the specification. The present invention further relates to pharmaceutical compositions comprising these compounds and to their use in therapy, in particular for the treatment of serotonin-mediated disorders such as obesity, schizophrenia and cognitive dysfunction.

  本发明涉及式(I)所示的三环杂环衍生物，其中变量如说明书中所定义。本发明进一步涉及包含这些化合物的药物组合物及其在治疗中的应用，特别是用于治疗由血清素介导的疾病，如肥胖、精神分裂症和认知功能障碍。

表征谱图