octyl 3-oxopentanoate | 92445-21-1

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: octyl 3-oxopentanoate
• CAS: 92445-21-1
• 化学式: C₁₃H₂₄O₃
• 分子量: 228.332
• InChiKey: KOJIAQAVFFLLGJ-UHFFFAOYSA-N

物化性质

• 沸点：
  271.7±8.0 °C(Predicted)
• 密度：
  0.936±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  16
• 可旋转键数：
  11
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.85
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  octyl 3-oxopentanoate 在 baker's yeast 、 Triton X-100 、 蔗糖 作用下， 以 水 为溶剂， 反应 4.5h， 生成 (-)-(R)-3-羟基戊酸甲酯
  参考文献：
  名称：

  Biochemical preparations of both the enantiomers of methyl 3-hydroxypentanoate and their conversion to the enantiomers of 4-hexanolide, the pheromone of trogoderma glabrum

  摘要：

  DOI：

  10.1016/s0040-4020(01)96410-5
• 作为产物：
  描述：

  octyl (S)-3-tetrahydropyranyloxypentanoate 在 盐酸 、 lithium aluminium tetrahydride 、 硫酸 作用下， 以 乙醚 、 苯 为溶剂， 反应 10.0h， 生成 octyl 3-oxopentanoate
  参考文献：
  名称：

  Biochemical preparations of both the enantiomers of methyl 3-hydroxypentanoate and their conversion to the enantiomers of 4-hexanolide, the pheromone of trogoderma glabrum

  摘要：

  DOI：

  10.1016/s0040-4020(01)96410-5

文献信息

• Layered Double Hydroxides-Supported Diisopropylamide: Synthesis, Characterization and Application in Organic Reactions
  作者：M. Lakshmi Kantam、A. Ravindra、Ch. Venkat Reddy、B. Sreedhar、B. M. Choudary

  DOI：10.1002/adsc.200505266

  日期：2006.3

  The layered double hydroxides-supported diisopropylamide (LDH-DA) catalyst is found to be an efficient and selective solid base for aldol, Knoevenagel, Henry, Michael, transesterification and epoxidation reactions under liquid phase conditions. LDH-DA is synthesized by the interaction of lithium diisopropylamide with LDH-NO3 (as-synthesized) and calcined LDH-NO3. The LDH-DA (Mg/Al, 3/1) and their precursors

  发现层状双氢氧化物负载的二异丙基酰胺（LDH-DA）催化剂是在液相条件下用于醇醛，Knoevenagel，Henry，Michael，酯交换和环氧化反应的有效且选择性的固体碱。LDH-DA是通过二异丙基氨基锂与LDH-NO 3（合成后）和煅烧的LDH-NO 3相互作用而合成的。通过使用各种仪器技术，如FT-IR，TGA和DTA，粉末XRD，固态27 Al MAS NMR光谱，SEM和XPS（ESCA ），可以很好地表征LDH-DA（Mg / Al，3/1）及其前体）。
• 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。
• Total synthesis of the (+)-pheromone of the male swift moth L.
  作者：Philip DeShong、Ming-Teh Lin、Joseph J Perez

  DOI：10.1016/s0040-4039(00)84456-1

  日期：1986.1
• Process for Preparing Acylphosphanes and Derivatives Thereof
  申请人：Murer Peter

  公开号：US20080004464A1

  公开（公告）日：2008-01-03

  The invention relates to a process for the preparation of (bis)acylphosphanes of formula I, wherein n and m are each independently of the other 1 or 2; R1 if n=1, is e.g. unsubstituted or substituted C 1 -C 18 alkyl or C 2 -C 18 alkenyl, or phenyl, R1 if n=2, is e.g. a divalent radical of the monovalent radical defined above; R2 is e.g. C 1 -C 18 alkyl, C 3 -C 12 cycloalkyl, C 2 -C 18 alkenyl, mesityl, phenyl, naphthyl; R3 is one of the radicals defined under R 1 ; the process comprises the steps a) contacting e.g. elemental phosphorous [P]∞, P(Hal) 3 with a reducing metal optionally in the presence of a catalyst or an activator in a solvent to obtain metal phosphides Me 3 P or Me′ 3 P 2 , wherein Me is an alkali metal and Me′ is an earth alkali metal or to obtain metal polyphosphides b) optionally adding a proton source, optionally in the presence of a catalyst or an activator to obtain metal dihydrogen phosphides MePH 2 ; c) subsequent acylation reaction with m acid halides of formula III or m carboxylic acid esters of formula IV or, in case that in formula I m=1, with one carboxylic ester of formula IV followed by one acid halide of formula III or vice versa, wherein R is the residue of an alcohol and R 2 is as defined above; d) alkylation reaction subsequent reaction with an electrophilic agent R 1 Hal or other electrophilic agents to obtain the compounds of formula I. An oxidation step may follow to obtain mono- and bisacylphosphane oxides or mono- and bisacylphosphane sulfides, which are used as photoinitiators.