3-d-pentane-2,4-dione | 58770-36-8

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-d-pentane-2,4-dione
• 英文别名: 3-deuterio-pentane-2,4-dione；3-Deuterio-pentan-2,4-dion；3-Deuterio-acetylaceton；Acetyldeuteriumaceton；Deuteroacetylaceton；Acetylaceton - d1；3-Deuteriopentane-2,4-dione；3-deuteriopentane-2,4-dione
• CAS: 58770-36-8
• 化学式: C₅H₈O₂
• 分子量: 101.109
• InChiKey: YRKCREAYFQTBPV-WFVSFCRTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.4
• 重原子数：
  7
• 可旋转键数：
  2
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.6
• 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：

  tetrakis(2,4-pentanedionato)thorium(IV) 、 3-d-pentane-2,4-dione 以 氘代乙腈 为溶剂， 生成
  参考文献：
  名称：

  氘同位素对 CD3CN 中四（乙酰丙酮）钍 (IV) 和游离乙酰丙酮之间配体交换速率的影响

  摘要：

  氘同位素对四(乙酰丙酮)钍 (IV)、Th(acac)4 和 CD3CN 中游离乙酰丙酮之间乙酰丙酮交换速率的影响已通过 1H NMR 技术进行了检查。二级速率常数 k，表示为观察到的一级速率常数 kobsd 和烯醇形式 [乙酰丙酮] 烯醇中乙酰丙酮浓度的函数，k=kobsd/[乙酰丙酮]烯醇测定了氘代乙酰丙酮 (Dacac) 和未氘代乙酰丙酮 (Hacac) 的反应。Hacac 和 Dacac 的二级速率常数比 kH/kD 约为 9。这种大的氘同位素效应有力地支持了先前论文中提出的机制，即质子转移过程是整个反应的速率决定步骤。

  DOI：

  10.1246/bcsj.62.2087
• 作为产物：
  描述：

  alkaline earth salt of/the/ methylsulfuric acid 、 alkaline earth salt of/the/ methylsulfuric acid 生成 3-d-pentane-2,4-dione
  参考文献：
  名称：

  Determinants of floristic diversity and vegetation composition on the islands of Lake Burollos, Egypt

  摘要：

  Abstract. A floristic and environmental survey was carried out on 22 uninhabited islands (0.1‐8.4 ha) in Lake Burollos, Egypt. A total of 58 vascular plant species was recorded. The number of habitats on each island was counted. There was a positive correlation between island area and number of habitat types. Island area was significantly positively correlated with various measures of floristic diversity, including the total number of species present, and the numbers of annual, herbaceous, and shrublet species. Perennial and shrub species numbers did not differ significantly with island area. In addition to island area, elevation and soil salinity, as well as distance to the Mediterranean Sea, all contributed significantly to variation in species composition in the terrestrial habitats. Water salinity and transparency accounted for 69% of the variation in aquatic species numbers. There was a weak effect of isolation on similarity of species composition on islands.Eight vegetation types, represented by 13 indicator species identified after TWINSPAN analysis, were distinguished by soil characteristics. Species richness was inversely correlated with clay, organic carbon and total nitrogen in the soil, but positively correlated with calcium carbonate content.From a management perspective, long‐term monitoring of threatened habitats in the lake is urgently required as a starting point to preserve biodiversity. Finally, we conclude that the present study supports the hypothesis indicating that larger areas feature higher species richness due to increased numbers of habitats.

  DOI：

  10.2307/1478993

文献信息

• Stabilized Naked Sub-nanometric Cu Clusters within a Polymeric Film Catalyze C–N, C–C, C–O, C–S, and C–P Bond-Forming Reactions
  作者：Judit Oliver-Messeguer、Lichen Liu、Saray García-García、Clàudia Canós-Giménez、Irene Domínguez、Rafael Gavara、Antonio Doménech-Carbó、Patricia Concepción、Antonio Leyva-Pérez、Avelino Corma

  DOI：10.1021/jacs.5b00222

  日期：2015.3.25

  Sub-nanometric Cu clusters formed by endogenous reduction of Cu salts and Cu nanoparticles are active and selective catalysts for C-N, C-C, C-O, C-S, and C-P bond-forming reactions. Sub-nanometric Cu clusters have also been generated within a polymeric film and stored with full stability for months. In this way, they are ready to be used on demand and maintain high activity (TONs up to 10(4)) and selectivity

  通过内源性还原铜盐和铜纳米粒子形成的亚纳米级铜簇是 CN、CC、CO、CS 和 CP 键形成反应的活性和选择性催化剂。亚纳米级的 Cu 簇也已在聚合物薄膜中生成，并且可以完全稳定地储存数月。通过这种方式，它们可以按需使用并保持高活性（TON 高达 10(4)）和上述反应的选择性。介绍了形成亚纳米簇的潜在机制及其电子性质。
• Deuterium Isotope Effect on the Rate of Ligand Exchange between Tetrakis(acetylacetonato)thorium(IV) and Free Acetylacetone in CD₃CN
  作者：Naoshi Fujiwara、Tomoe Nakagawa、Hiroshi Tomiyasu、Hiroshi Fukutomi

  DOI：10.1246/bcsj.62.2087

  日期：1989.6

  A deuterium isotope effect on the rate of acetylacetonate exchange between tetrakis(acetylacetonato)thorium(IV), Th(acac)4, and free acetylacetone in CD3CN has been examined by means of 1H NMR technique. The second-order rate constant, k, which is expressed as a function of the observed first-order rate constant, kobsd, and the concentration of acetylacetone in the enol form, [acetylacetone]enol, by

  氘同位素对四(乙酰丙酮)钍 (IV)、Th(acac)4 和 CD3CN 中游离乙酰丙酮之间乙酰丙酮交换速率的影响已通过 1H NMR 技术进行了检查。二级速率常数 k，表示为观察到的一级速率常数 kobsd 和烯醇形式 [乙酰丙酮] 烯醇中乙酰丙酮浓度的函数，k=kobsd/[乙酰丙酮]烯醇测定了氘代乙酰丙酮 (Dacac) 和未氘代乙酰丙酮 (Hacac) 的反应。Hacac 和 Dacac 的二级速率常数比 kH/kD 约为 9。这种大的氘同位素效应有力地支持了先前论文中提出的机制，即质子转移过程是整个反应的速率决定步骤。
• Determinants of floristic diversity and vegetation composition on the islands of Lake Burollos, Egypt
  作者：Abdel-Hamid Khedr、Jon Lovett-Doust

  DOI：10.2307/1478993

  日期：2000.12

  Abstract. A floristic and environmental survey was carried out on 22 uninhabited islands (0.1‐8.4 ha) in Lake Burollos, Egypt. A total of 58 vascular plant species was recorded. The number of habitats on each island was counted. There was a positive correlation between island area and number of habitat types. Island area was significantly positively correlated with various measures of floristic diversity, including the total number of species present, and the numbers of annual, herbaceous, and shrublet species. Perennial and shrub species numbers did not differ significantly with island area. In addition to island area, elevation and soil salinity, as well as distance to the Mediterranean Sea, all contributed significantly to variation in species composition in the terrestrial habitats. Water salinity and transparency accounted for 69% of the variation in aquatic species numbers. There was a weak effect of isolation on similarity of species composition on islands.Eight vegetation types, represented by 13 indicator species identified after TWINSPAN analysis, were distinguished by soil characteristics. Species richness was inversely correlated with clay, organic carbon and total nitrogen in the soil, but positively correlated with calcium carbonate content.From a management perspective, long‐term monitoring of threatened habitats in the lake is urgently required as a starting point to preserve biodiversity. Finally, we conclude that the present study supports the hypothesis indicating that larger areas feature higher species richness due to increased numbers of habitats.