(2,4-二溴-苯基)-肼 | 57279-78-4

• 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: (2,4-二溴-苯基)-肼
• 英文名称: (2,4-dibromo-phenyl)-hydrazine
• 英文别名: (2,4-Dibrom-phenyl)-hydrazin；(2,4-Dibromophenyl)hydrazine
• CAS: 57279-78-4
• 化学式: C₆H₆Br₂N₂
• mdl: MFCD02663087
• 分子量: 265.935
• InChiKey: IEJSVSLXZNRULR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.5
• 重原子数：
  10
• 可旋转键数：
  1
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  38
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (2,4-二溴-苯基)-肼 在 sodium hydroxide 、 乙醇 、 氨 、 三溴化磷 、 五溴化磷 作用下， 生成 N'-(2,4-dibromophenyl)benzenecarboximidohydrazide
  参考文献：
  名称：

  Chattaway; Walker, Journal of the Chemical Society, 1925, vol. 127, p. 983

  摘要：

  DOI：
• 作为产物：
  描述：

  1-乙酰基-2-苯基肼 在 盐酸 、 溴 作用下， 生成 (2,4-二溴-苯基)-肼
  参考文献：
  名称：

  Michaelis,L., Chemische Berichte, 1893, vol. 26, p. 2192

  摘要：

  DOI：

文献信息

• Iodine-catalyzed aromatization of tetrahydrocarbazoles and its utility in the synthesis of glycozoline and murrayafoline A: a combined experimental and computational investigation
  作者：Vivek Humne、Yuvraj Dangat、Kumar Vanka、Pradeep Lokhande

  DOI：10.1039/c4ob00635f

  日期：——

  A new protocol for the aromatization of tetrahydrocarbazoles has been achieved using a catalytic amount of iodine. The role of iodine has been explained by DFT, and its scope is extended to the total synthesis of glycozoline and murrayafoline A.

  已经使用少量碘成功实现了四氢咔唑的芳构化新协议。碘的作用已经通过密度泛函理论解释，并将其范围扩展到了甘露醇咔唑和穆拉亚碱A的全合成。
• CRTH2 Receptor Ligands For Medicinal Uses
  申请人：Ulven Trond

  公开号：US20090099189A1

  公开（公告）日：2009-04-16

  Compounds of formula (I) are useful for the treatment of disease responsive to modulation of CRTH2 receptor activity, such as asthma, rhinitis, allergic airway syndrome, and allergic rhinobronchitis, wherein A represents a carboxyl group —COON, or a carboxyl bioisostere; A 1 , is hydrogen or methyl; ring Ar 1 is an optionally substituted phenyl ring 5- or 6-membered monocyclic heteroaryl ring, in which AA 1 CHO— and L2 are linked to adjacent ring atoms; rings Are 2 , Ar 3 each independently represent a phenyl or 5- or 6-membered monocyclic heteroaryl ring, or a bicyclic ring system consisting of a 5- or 6-membered carbocyclic or heterocyclic ring which is benz-fused or fused to a 5- or 6-membered monocyclic heteroaryl ring, said ring or ring system being optionally substituted; t is 0 or 1; L2 and L3 are linker radicals as defined in the description.

  式(I)的化合物可用于治疗对CRTH2受体活性调节敏感的疾病，例如哮喘、鼻炎、过敏性气道综合症和过敏性鼻支气管炎，其中A代表羧基—COON或羧基生物同位素；A1为氢或甲基；环Ar1是一个可选取代的苯环5-或6-成员的单环杂环，其中AA1CHO—和L2与相邻的环原子连接；环Are2，Ar3各自独立地表示一个苯环或5-或6-成员的单环杂环，或由一个5-或6-成员的碳环或杂环组成的双环系统，该环或环系统被苯并或与一个5-或6-成员的单环杂环融合，该环或环系统是可选取代的；t为0或1；L2和L3是如描述中所定义的连接基团。
• CRTH2 receptor ligands for medicinal uses
  申请人：Ulven Trond

  公开号：US20110269763A1

  公开（公告）日：2011-11-03

  Compounds of formula (I) are useful for the treatment of disease responsive to modulation of CRTH2 receptor activity, such as asthma, rhinitis, allergic airway syndrome, and allergic rhinobronchitis: wherein A represents a carboxyl group —COOH, or a carboxyl bioisostere; A 1 is hydrogen or methyl; ring Ar 1 is an optionally substituted phenyl ring or 5- or 6-membered monocyclic heteroaryl ring, in which AA 1 CHO— and L2 are linked to adjacent ring atoms; rings Ar 2 , Ar 3 each independently represent a phenyl or 5- or 6-membered monocyclic heteroaryl ring, or a bicyclic ring system consisting of a 5- or 6-membered carbocyclic or heterocyclic ring which is benz-fused or fused to a 5- or 6-membered monocyclic heteroaryl ring, said ring or ring system being optionally substituted; t is 0 or 1; L2 and L3 are linker radicals as defined in the description.

  式(I)的化合物可用于治疗对CRTH2受体活性调节敏感的疾病，例如哮喘、鼻炎、过敏性气道综合症和过敏性鼻支气管炎：其中A代表羧基—COOH或羧基生物同位素；A1为氢或甲基；环Ar1为可选取代的苯环或5-或6-成员的单环杂环，其中AA1CHO—和L2连接到相邻的环原子上；环Ar2、Ar3各自独立地表示苯环或5-或6-成员的单环杂环，或由5-或6-成员的碳环或杂环组成的双环系统，该环或环系统是苯并或与5-或6-成员的单环杂环融合，该环或环系统是可选的取代；t为0或1；L2和L3是如描述中定义的连接基。
• [DMAPBr]⁺Br^-; A New Specific Electrophilic Bromine Transfer Reagent for Highly Ring Activated Aromatic Compounds in Water
  作者：Swathi Thangalipalli、Chandra Kiran Neella

  DOI：10.1080/00304948.2022.2124820

  日期：2023.3.4

  Published in Organic Preparations and Procedures International: The New Journal for Organic Synthesis (Vol. 55, No. 2, 2023)

  发表于国际有机制剂和程序：有机合成新期刊（印刷前，2022 年）
• Visible-light-absorbing C–N cross-coupling for the synthesis of hydrazones involving C(sp²)–H/C(sp³)–H functionalization
  作者：Ambuj Kumar Kushwaha、Suresh Kumar Maury、Arsala Kamal、Himanshu Kumar Singh、Shikha Pandey、Sundaram Singh

  DOI：10.1039/d2cc07001d

  日期：——

  An efficient C–N cross-coupling approach for the synthesis of hydrazones was developed through C(sp2)–H and C(sp3)–H functionalization of indole and methylarene under visible light irradiation using photocatalyst eosin Y, ethanol:water as a green solvent and atmospheric air as an oxidant. With the aid of eosin Y, the C–H bonds of indole and methylarenes were activated followed by coupling with arylhydrazines

  通过 C(sp 2 )–H 和 C(sp 3)–H 功能化吲哚和甲基芳烃在可见光照射下使用光催化剂曙红 Y，乙醇：水作为绿色溶剂和大气空气作为氧化剂。在曙红 Y 的帮助下，吲哚和甲基芳烃的 C-H 键被激活，然后与芳基肼偶联。该程序适用于具有良好官能团相容性的各种底物，提供了一种创造性的方法，可以用廉价且易于获得的原材料制造腙。没有金属、低成本、环境友好、绿色溶剂、无毒、易于处理以及利用可见光等可再生能源是该方法的一些主要优势。