anthracene-9-carbonyl azide | 1310353-25-3

• 分子结构分类: 有机化合物 - 苯类化合物 - 蒽
• 英文名称: anthracene-9-carbonyl azide
• CAS: 1310353-25-3
• 化学式: C₁₅H₉N₃O
• 分子量: 247.256
• InChiKey: GEYUTWJCBDVTMI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.44
• 重原子数：
  19.0
• 可旋转键数：
  1.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  65.83
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  anthracene-9-carbonyl azide 以 邻二氯苯 为溶剂， 反应 2.0h， 生成 9-anthracenyl isocyanate
  参考文献：
  名称：

  Postpolymerization Modification of Hydroxyl-Functionalized Polymers with Isocyanates

  摘要：

  The postpolymerization functionalization of hydroxyl-group terminated polymers (M-n in the range of 1000-6000 g mol(-1)) such as poly(ethylene glycol) (PEG), poly(N-isopropylacrylamide) (PNIPAM), poly(N,N-dimethylacrylamide) (PDMAM), and poly(tert-butyl acrylate) (PtBA) with a wide range of functional isocyanate derivatives such as azobenzene, and anthracene has been investigated. It was shown by H-1 and C-13 NMR, GPC, Fourier transform infrared spectroscopy (FTIR), and electrospray ionization mass spectrometry (ESI-MS) that a high degree of end-group conversion, typically >98%, with little or no formation of side products can be achieved at ambient temperature. PNIPAM, PDMAM, PtBA, and PHEAM polymers have been obtained by reversible addition-fragmentation chain transfer (RAFT) radical polymerization from a hydroxyl-group containing chain transfer agent (CTA). The formation of the carbamate has been shown to be compatible with the trithiocarbonate end-group of the RAFT polymers. Additionally, this approach allows for the direct functionalization of RAFT polymers without the need of additional steps such as deprotection or aminolysis of the CTA. This route was subsequently used for the preparation of a variety of side-chain functional polymers from poly(N-hydroxyethyl acrylamide) (PHEAM). Three different high yielding methods have been employed to prepare the isocyanates (R-NCO). Either amino or carboxylic acid precursors have been converted into the desired R NCO or hydroxyl group moieties have been reacted with an excess of 1,6-hexamethylene diisocyanate (HDI) to statistically form the monofunctional product.

  DOI：

  10.1021/ma2008018
• 作为产物：
  描述：

  9-蒽甲酸 在 二苯基膦叠氮化物 、 三乙胺 作用下， 以 甲苯 为溶剂， 反应 48.0h， 生成 anthracene-9-carbonyl azide
  参考文献：
  名称：

  Postpolymerization Modification of Hydroxyl-Functionalized Polymers with Isocyanates

  摘要：

  The postpolymerization functionalization of hydroxyl-group terminated polymers (M-n in the range of 1000-6000 g mol(-1)) such as poly(ethylene glycol) (PEG), poly(N-isopropylacrylamide) (PNIPAM), poly(N,N-dimethylacrylamide) (PDMAM), and poly(tert-butyl acrylate) (PtBA) with a wide range of functional isocyanate derivatives such as azobenzene, and anthracene has been investigated. It was shown by H-1 and C-13 NMR, GPC, Fourier transform infrared spectroscopy (FTIR), and electrospray ionization mass spectrometry (ESI-MS) that a high degree of end-group conversion, typically >98%, with little or no formation of side products can be achieved at ambient temperature. PNIPAM, PDMAM, PtBA, and PHEAM polymers have been obtained by reversible addition-fragmentation chain transfer (RAFT) radical polymerization from a hydroxyl-group containing chain transfer agent (CTA). The formation of the carbamate has been shown to be compatible with the trithiocarbonate end-group of the RAFT polymers. Additionally, this approach allows for the direct functionalization of RAFT polymers without the need of additional steps such as deprotection or aminolysis of the CTA. This route was subsequently used for the preparation of a variety of side-chain functional polymers from poly(N-hydroxyethyl acrylamide) (PHEAM). Three different high yielding methods have been employed to prepare the isocyanates (R-NCO). Either amino or carboxylic acid precursors have been converted into the desired R NCO or hydroxyl group moieties have been reacted with an excess of 1,6-hexamethylene diisocyanate (HDI) to statistically form the monofunctional product.

  DOI：

  10.1021/ma2008018

文献信息

• Copper‐Catalyzed C(sp ³ )−H Amidation: Sterically Driven Primary and Secondary C−H Site‐Selectivity
  作者：Abolghasem (Gus) Bakhoda、Quan Jiang、Yosra M. Badiei、Jeffery A. Bertke、Thomas R. Cundari、Timothy H. Warren

  DOI：10.1002/anie.201810556

  日期：2019.3.11

  functionalizing stronger primary and secondary C−H bonds over tertiary and benzylic C−H sites. Herein, we report a Cu catalyst that exhibits a high degree of primary and secondary over tertiary C−H bond selectivity in the amidation of linear and cyclic hydrocarbons with aroyl azides ArC(O)N3. Mechanistic and DFT studies indicate that C−H amidation involves H‐atom abstraction from R‐H substrates by nitrene intermediates

  无方向的C（sp 3）-H功能化反应通常遵循位点选择性模式，该模式反映了相应的C-H键解离能（BDE）。在存在较强的二级和一级键的情况下，这通常会导致较弱的CHH键的功能化。当代的一个重要挑战是催化剂体系的发展，该催化剂体系能够选择性地在叔和苄基CH位上官能化更强的一级和二级CH键。本文中，我们报道了一种铜催化剂，在线性和环状烃与芳基叠氮化物ArC（O）N 3的酰胺化反应中，叔碳氢键对叔碳氢键的选择性较高。机理和DFT研究表明，C-H酰胺化涉及从由氮宾中间体[铜] R-H的基材H-原子抽象（κ 2 - Ñ，Ö -NC（O）中的Ar），以提供基于碳的基团R 。和铜（II）酰胺中间体[铜II ] -NHC（O）中的Ar，其随后捕获基团R 。形成产品R‐NHC（O）Ar。这些研究揭示了在没有导向基团的情况下实现一级和二级CH酰胺化选择性所需的重要催化剂特征。