propyl 3-oxopentanoate | 155780-86-2

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 酮酸及其衍生物
• 英文名称: propyl 3-oxopentanoate
• CAS: 155780-86-2
• 化学式: C₈H₁₄O₃
• 分子量: 158.197
• InChiKey: JHNRDQVZFDRPIV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  11
• 可旋转键数：
  6
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 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：

  propyl 3-oxopentanoate 、 乙二醇 在 carbon-based acid prepared by carbonization of furaldehyde and 2-hydroxyethylsulfonic acid 作用下， 以 环己烷 为溶剂， 生成
  参考文献：
  名称：

  使用新型碳基酸合成果糖香料的高效程序

  摘要：

  通过糠醛和羟乙基磺酸的一步水热碳化合成了新型碳基酸。使用新型碳基酸开发了一种高效的果糖合成方法。结果表明该催化剂具有较高的反应活性，产率超过95%。具有高活性、稳定性、可重复使用性和低成本、合成过程简单以及对各种二醇和β-酮酯的广泛适用性等优点，使这种新型碳基酸成为反应的最佳选择之一。

  DOI：

  10.3390/molecules15085369

文献信息

• Synthesis and anti-HIV Activity of New Fused Chromene Derivatives Derived from 2-Amino-4-(1-naphthyl)-5-oxo-4H,5H-pyrano[3,2- c]chromene-3-carbonitrile
  作者：Najim A. Al-Masoudi、Hamid H. Mohammed、Aws M. Hamdy、Omer A. Akrawi、Nadi Eleya、Anke Spannenberg、Christophe Pannecouque、Peter Langer

  DOI：10.5560/znb.2013-2297

  日期：2013.3.1

  pyrimido pyrano-chromene derivatives were synthesized starting from 2-amino-4-(1-naphthyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile (6). The structures of the synthesized compounds were elucidated by spectral data. Compounds 6-11, 13-15 and 18 have been selected for an inhibitory activity screening against HIV-1 and HIV-2 in MT-4 cells. Graphical Abstract Synthesis and anti-HIV Activity of New Fused

  以 2-amino-4-(1-naphthyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile 为原料合成了一系列新的吡喃并色烯和嘧啶并吡喃并色烯衍生物(6). 通过光谱数据阐明了合成化合物的结构。已选择化合物 6-11、13-15 和 18 用于筛选 MT-4 细胞中针对 HIV-1 和 HIV-2 的抑制活性。衍生自 2-Amino-4-(1-naphthyl)-5-oxo-4H,5H-pyrano[3,2-c]chromene-3-carbonitrile 的新型融合 Chromene 衍生物的图形摘要合成和抗 HIV 活性
• [EN] METHOD FOR PREPARATION OF ALKYLATED OR FLUORO, CHLORO AND FLUOROCHLORO ALKYLATED COMPOUNDS BY HETEROGENEOUS COBALT CATALYSIS<br/>[FR] PROCÉDÉ DE PRÉPARATION DE COMPOSÉS ALKYLÉS OU FLUORO, CHLORO ET FLUOROCHLORO ALKYLÉS PAR CATALYSE HÉTÉROGÈNE DE COBALT
  申请人：LONZA AG

  公开号：WO2019020726A1

  公开（公告）日：2019-01-31

  The invention discloses a method for preparation of alkylated, fluoro alkylated, chloro alkylated and fluorochloro alkylated compounds by a heterogeneous Co-catalysed alkylation or fluoro, chloro and fluorochloro alkylation with alkyl halides, fluoro alkyl halides, chloro alkyl halides or fluorochloro alkyl halides respectively.

  该发明公开了一种通过异相Co催化的烷基化或氟、氯和氟氯烷基化与烷基卤化物、氟烷基卤化物、氯烷基卤化物或氟氯烷基卤化物分别制备烷基化、氟烷基化、氯烷基化和氟氯烷基化化合物的方法。
• PRESSURE-SENSITIVE ADHESIVE COMPOSITION, PRESSURE-SENSITIVE ADHESIVE SHEET, AND OPTICAL MEMBER
  申请人：NITTO DENKO CORPORATION

  公开号：US20130266805A1

  公开（公告）日：2013-10-10

  The present invention provides a pressure-sensitive adhesive composition which can form a pressure-sensitive sheet excellent in adhesive properties (adherability, easy peeling property at the time of high speed peeling, and re-peeling property) and the antistatic property and which has long pot life. The pressure-sensitive composition of the present invention is a pressure-sensitive adhesive composition comprising a (meth)acryl-based polymer composed of, as raw material monomers, a (meth)acryl-based monomer having an alkyl group of 1 to 14 carbon atoms and a hydroxyl group-containing (meth)acryl-based monomer, an alkali metal salt, and a catalyst having iron as an active center, wherein the hydroxyl group-containing (meth)acryl-based monomer is contained in an amount of 6 parts by weight or more to 100 parts by weight of the (meth)acryl-based monomer having an alkyl group of 1 to 14 carbon atoms.

  本发明提供了一种压敏粘合剂组合物，可以形成具有优异的粘附性能（附着性、高速剥离时易剥离性和再剥离性）和抗静电性能以及长时间潜伏期的压敏片。本发明的压敏组合物是一种压敏粘合剂组合物，包括一种（甲基）丙烯酸基聚合物，该聚合物由原料单体组成，其中包括一种具有1至14个碳原子的烷基基团和含有羟基的（甲基）丙烯酸基单体，碱金属盐和以铁为活性中心的催化剂，其中含有羟基的（甲基）丙烯酸基单体在100份（甲基）丙烯酸基单体中的含量为6份或更多。
• 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。