3-methyloctane-2,4-dione | 99182-97-5

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-methyloctane-2,4-dione
• 英文别名: 3-Methyl-octan-2,4-dion
• CAS: 99182-97-5
• 化学式: C₉H₁₆O₂
• 分子量: 156.225
• InChiKey: NKXLGIVSBUXRNL-UHFFFAOYSA-N

物化性质

• 沸点：
  78-82 °C(Press: 2 Torr)
• 密度：
  0.909±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  11
• 可旋转键数：
  5
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-methyloctane-2,4-dione 、 2,4-二硝基苯肼 生成 3-butyl-1-(2,4-dinitro-phenyl)-4,5-dimethyl-1H-pyrazole
  参考文献：
  名称：

  Telomers from Carbon Monoxide and Olefins

  摘要：

  DOI：

  10.1021/ja01602a039
• 作为产物：
  描述：

  在 硫酸 作用下， 以 甲苯 为溶剂， 以4 g的产率得到3-methyloctane-2,4-dione
  参考文献：
  名称：

  New Oxidation of β-Hydroxy α-Methyl Ketones:  A Convenient Synthesis of 3-Methylalkane-2,4-diones

  摘要：

  The synthesis of 3-methylalkane-2,4-diones, which are intense strawlike and fruit-flavored compounds, has been performed by the aldol condensation of n-alkanal (C2-C7) and methyl ethyl ketone to give 4-hydroxy-3-methyl-2-alkanones in 31-72% yield, followed by oxidation using sodium hypochlorite in the presence of 4-benzoyloxy-2,2,6,6-tetramethyl-piperidine-N-oxide in 60-86% yield.

  DOI：

  10.1021/op020029i

文献信息

• [EN] COMPOUNDS AND METHODS FOR PRODUCING A CONJUGATE<br/>[FR] COMPOSÉS ET PROCÉDÉS POUR PRODUIRE UN CONJUGUÉ
  申请人：REDWOOD BIOSCIENCE INC

  公开号：WO2014074218A1

  公开（公告）日：2014-05-15

  The present disclosure provides conjugate structures and compound structures used to produce these conjugates. Also provided are methods of producing drug-polypeptide or detectable label-polypeptide conjugates linked through a modified amino acid. Structures of the modified amino acids used in producing the conjugates are disclosed.

  本公开提供了用于制备这些共轭物的共轭结构和化合物结构。还提供了通过修饰的氨基酸连接的药物-多肽或可检测标记-多肽共轭物的制备方法。公开了用于制备共轭物的修饰氨基酸的结构。
• Polyamide acid composition for preparing polyimide and process for preparing polyimide from the same
  申请人：KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA

  公开号：EP0083690A1

  公开（公告）日：1983-07-20

  A polyamide acid composition for preparing a polyimide which can extend the pot life of the composition comprising a solution of a polyamide acid in an organic solvent, the polyamide acid being a precursor of the polyimide, a dehydrating agent, a catalyst and a pot life extending agent which can lower a rate of conversion of the polyamide acid to the plyimide, and the process for preparing the polyimide from said polyamide acid composition. According to the present invention the pot life can be extremely extended to give the composition an enough flowability for a long time without reducing the excellent properties such as a heat resistance and an electric insulation of the obtained polyimide.

  一种用于制备聚酰亚胺的聚酰胺酸组合物，可延长组合物的固化寿命，该组合物包括聚酰胺酸在有机溶剂中的溶液（聚酰胺酸是聚酰亚胺的前体）、脱水剂、催化剂和可降低聚酰胺酸转化为聚酰亚胺的速率的固化寿命延长剂，以及用上述聚酰胺酸组合物制备聚酰亚胺的工艺。根据本发明，可以极大地延长聚酰亚胺的罐装寿命，使该组合物具有足够长的流动性，而不会降低所得聚酰亚胺的优异性能，如耐热性和电绝缘性。
• Method of preparing a polyamide acid composition for preparing polyimide
  申请人：KANEGAFUCHI KAGAKU KOGYO KABUSHIKI KAISHA

  公开号：EP0114059A2

  公开（公告）日：1984-07-25

  A polyamide acid composition for preparing a polyimide which is improved in the stability in a form of solution and can extend the pot life of the composition comprising a solution of a polyamide acid in an organic solvent, the polyamide acid being a precursor of the polyimide, and an N-substituted heterocyclic compound as a chemical treating agent which can lower a rate of conversion of the polyamide acid to the polyimide. The pot life can be extremely extended to give the composition an enough flowability for a long time without reducing the excellent properties such as a heat resistance of the obtained polyimide.

  一种用于制备聚酰亚胺的聚酰胺酸组合物，该组合物在溶液形式下的稳定性得到改善，并可延长其罐装寿命，该组合物包括聚酰胺酸在有机溶剂中的溶液，聚酰胺酸是聚酰亚胺的前体，以及一种 N-取代杂环化合物作为化学处理剂，可降低聚酰胺酸转化为聚酰亚胺的速率。可以极大地延长罐装寿命，使组合物在长时间内具有足够的流动性，而不会降低所获得的聚酰亚胺的优异性能，如耐热性。
• US4454276A
  申请人：——

  公开号：US4454276A

  公开（公告）日：1984-06-12
• US4515915A
  申请人：——

  公开号：US4515915A

  公开（公告）日：1985-05-07