2-naphthyl 2-naphthoate | 94966-18-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 2-naphthyl 2-naphthoate
• 英文别名: [2]naphthoic acid-[2]naphthyl ester；[2]Naphthoesaeure-[2]naphthylester；(2-Naphthyl)-2'-naphthoat；Naphthalen-2-yl naphthalene-2-carboxylate
• CAS: 94966-18-4
• 化学式: C₂₁H₁₄O₂
• 分子量: 298.341
• InChiKey: OWLRGLNIUYANTG-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.8
• 重原子数：
  23
• 可旋转键数：
  3
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.0
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-naphthyl 2-naphthoate 、 溴 、 溶剂黄146 生成 alkaline earth salt of/the/ methylsulfuric acid
  参考文献：
  名称：

  Singularity analysis of geometric constraint systems

  摘要：

  Singularity analysis is an important subject of the geometric constraint satisfaction problem. In this paper, three kinds of singularities are described and corresponding identification methods are presented for both under-constrained systems and over-constrained systems. Another special but common singularity for under-constrained geometric systems, pseudo-singularity, is analyzed. Pseudo-singularity is caused by a variety of constraint matching of under-constrained systems and can be removed by improving constraint distribution. To avoid pseudo-singularity and decide redundant constraints adaptively, a differentiation algorithm is proposed in the paper. Its correctness and efficiency have been validated through its practical applications in a 2D/3D geometric constraint solver CBA.

  DOI：

  10.1007/bf02947309
• 作为产物：
  描述：

  2-萘甲酰氯 在 sodium peroxide 作用下， 以 水 、 甲苯 、 乙腈 为溶剂， 生成 2-naphthyl 2-naphthoate
  参考文献：
  名称：

  由二萘甲酰过氧化物和 1-(萘甲酰氧基)-2-吡啶酮的光裂解产生的萘甲酰氧基和甲氧基萘酰氧基自由基的行为

  摘要：

  1-Naphthoyloxyl 和 2-naphthoyloxyl 自由基是由二萘甲酰过氧化物和 1-(naphthoyloxy)-2-pyridones 在乙腈中的光裂解产生的。前体之间产物分布的差异归因于双键断裂对单线态过氧化物分解的贡献。相应的（甲氧基萘酰氧基）吡啶酮还生成了一系列甲氧基萘酰氧基自由基，并将它们的行为与未取代的萘酰氧基自由基的行为进行了比较。在萘环中引入甲氧基可以稳定萘酰氧基自由基以完全防止它们脱羧并显着降低它们在加入烯烃和夺取氢原子时的反应性。

  DOI：

  10.1246/bcsj.76.575

文献信息

• A new algorithm for generalized optimal discriminant vectors
  作者：Xiaojun Wu、Yang Jingyu、Shitong Wang、Guo Yuefei、Qiying Cao

  DOI：10.1007/bf02947310

  日期：2002.5

  A study has been conducted on the algorithm of solving generalized optimal set of discriminant vectors in this paper. This paper proposes an analytical algorithm of solving generalized optimal set of discriminant vectors theoretically for the first time. A lot of computation time can be saved because all the generalized optimal sets of discriminant vectors can be obtained simultaneously with the proposed algorithm, while it needs no iterative operations. The proposed algorithm can yield a much higher recognition rate. Furthermore, the proposed algorithm overcomes the shortcomings of conventional human face recognition algorithms which were effective for small sample size problems only. These statements are supported by the numerical simulation experiments on facial database of ORL.
• Rheinboldt et al., Universidade de Sao Paulo, Faculdade de Filosofia, Ciencias e Letras, Boletim, Quimica, 1951, # 3, p. 8,26
  作者：Rheinboldt et al.

  DOI：——

  日期：——
• Behavior of Naphthoyloxyl and Methoxynaphthoyloxyl Radicals Generated from the Photocleavage of Dinaphthoyl Peroxides and 1-(Naphthoyloxy)-2-pyridones
  作者：Toshihiro Najiwara、Ji-ichiro Hashimoto、Katsunori Segawa、Hirochika Sakuragi

  DOI：10.1246/bcsj.76.575

  日期：2003.3

  was compared with that of unsubstituted naphthoyloxyl radicals. The introduction of a methoxy group in the naphthalene ring stabilizes the naphthoyloxyl radicals to prevent their decarboxylation completely and reduces remarkably their reactivities in the addition to olefins and hydrogen-atom abstraction. The structure of the naphthoyloxyl radicals was discussed on the basis of their absorption spectra

  1-Naphthoyloxyl 和 2-naphthoyloxyl 自由基是由二萘甲酰过氧化物和 1-(naphthoyloxy)-2-pyridones 在乙腈中的光裂解产生的。前体之间产物分布的差异归因于双键断裂对单线态过氧化物分解的贡献。相应的（甲氧基萘酰氧基）吡啶酮还生成了一系列甲氧基萘酰氧基自由基，并将它们的行为与未取代的萘酰氧基自由基的行为进行了比较。在萘环中引入甲氧基可以稳定萘酰氧基自由基以完全防止它们脱羧并显着降低它们在加入烯烃和夺取氢原子时的反应性。
• Singularity analysis of geometric constraint systems
  作者：Xiaobo Peng、Liping Chen、Fanli Zhou、Ji Zhou

  DOI：10.1007/bf02947309

  日期：2002.5

  Singularity analysis is an important subject of the geometric constraint satisfaction problem. In this paper, three kinds of singularities are described and corresponding identification methods are presented for both under-constrained systems and over-constrained systems. Another special but common singularity for under-constrained geometric systems, pseudo-singularity, is analyzed. Pseudo-singularity is caused by a variety of constraint matching of under-constrained systems and can be removed by improving constraint distribution. To avoid pseudo-singularity and decide redundant constraints adaptively, a differentiation algorithm is proposed in the paper. Its correctness and efficiency have been validated through its practical applications in a 2D/3D geometric constraint solver CBA.