2-methyl-1-eicosanal | 19754-53-1

• 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: 2-methyl-1-eicosanal
• 英文别名: 2-methyleicosanal；2-methylicosanal
• CAS: 19754-53-1
• 化学式: C₂₁H₄₂O
• 分子量: 310.564
• InChiKey: SYINEDRCBKSZPF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.8
• 重原子数：
  22
• 可旋转键数：
  18
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.95
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-methyl-1-eicosanal 在 platinum(IV) oxide 氢气 作用下， 生成 2,4-dimethyl-docosanoic acid
  参考文献：
  名称：

  Isolation of 2,4-dimethyldocosanoic acid from the lipids of tubercle bacillus

  摘要：

  DOI：

  10.1016/s0040-4020(01)98464-9
• 作为产物：
  描述：

  2-甲基二十烷酸 生成 2-methyl-1-eicosanal
  参考文献：
  名称：

  Isolation of 2,4-dimethyldocosanoic acid from the lipids of tubercle bacillus

  摘要：

  DOI：

  10.1016/s0040-4020(01)98464-9

文献信息

• 3-Hydroxy-2-methyl-and 3-hydroxy-2,4-dimethyl-substituted long-chain carboxylic esters
  作者：Lydia Coles、N. Polgar

  DOI：10.1039/j39680001412

  日期：——

  3-Hydroxy-2-methyl- and 3-hydroxy-2,4-dimethyl-substituted long-chain carboxylic esters have been prepared by routes involving (i) reduction of the corresponding keto-esters, and (ii) Reformatsky reaction between the appropriate aldehydes and ethyl α-bromopropionate. The resulting 2,3-erythro- and threo-isomers of ethyl 3-hydroxy-2-methyleicosanoate, and of methyl and ethyl 3-hydroxy-2,4-dimethyldocosanoate

  3-羟基-2-甲基-和3-羟基-2,4-二甲基取代的长链羧酸酯已经通过以下方法制备：（i）还原相应的酮酯，和（ii）适当的醛和α-溴丙酸乙酯。所得的2,3-赤型和苏式3-羟基-2-甲基二十二烷酸乙酯的3-异构体以及3-羟基-2，4-二甲基二十二烷酸甲酯和3-羟基-2-乙基二癸酸乙酯的异构体已经通过色谱法分离。描述了这些酯的高分辨率红外研究，并且还报道和讨论了乙酯的nmr数据。通过制备层色谱分离作为副产物获得的1，3-二羟基-2-甲基二十二烷的非对映异构体，并将其转化为相应的亚乙基缩醛。报告了对二醇的高分辨率红外研究，以及二醇及其缩醛的nmr数据。
• Process for catalyst-aldehyde product separation
  申请人：UNION CARBIDE CHEMICALS AND PLASTICS COMPANY INC. (a New York corporation)

  公开号：EP0350922A2

  公开（公告）日：1990-01-17

  Process for the separation and recovery of aldehyde product from a non-aqueous hydroformylation reaction product composition comprising the aldehyde product, a rhodium-ionically charged phosphorus ligand complex, a free ionically charged phosphorus ligand and an organic solubilizing agent for said complex and said free ligand via phase separation using added water or both added water and an added non-polar hydrocarbon compound.

  从非水加氢甲酰化反应产物组合物中分离和回收醛产物的工艺，该组合物包括醛产物、铑-带离子电荷的磷配位体络合物、游离的带离子电荷的磷配位体以及用于所述络合物和游离配位体的有机增溶剂，通过使用添加的水或添加的水和添加的非极性烃化合物进行相分离。
• Improved metal-ligand complex catalyzed processes
  申请人：UNION CARBIDE CHEMICALS & PLASTICS

  公开号：EP1108707A1

  公开（公告）日：2001-06-20

  This invention relates to a person for separating one or more phosphorus acidic compounds from a reaction product fluid containing said one or more phosphorus acidic compounds, a metal-organophosphite ligand complex catalyst and optionally free organophosphite ligand which process comprises (a) treating said reaction product fluid with water sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said reaction product fluid and (b) treating the water which contains phosphorus acidic compounds removed from said reaction product fluid with an acid removal substance sufficient to remove at least some amount of said one or more phosphorus acidic compounds from said water.

  本发明涉及一种从含有一种或多种磷酸性化合物的反应产物流体中分离一种或多种磷酸性化合物的方法、本发明涉及一种从含有一种或多种磷酸性化合物的反应产物流体中分离出一种或多种磷酸性化合物的工艺，该工艺包括：(a) 用足以从反应产物流体中去除至少一定量的所述一种或多种磷酸性化合物的水处理所述反应产物流体；(b) 用足以从所述水中去除至少一定量的所述一种或多种磷酸性化合物的脱酸物质处理从所述反应产物流体中去除的含有磷酸性化合物的水。
• Methods and compositions for producing hydrocarbons
  申请人：REG LIFE SCIENCES, LLC

  公开号：US10150975B2

  公开（公告）日：2018-12-11

  Compositions and methods for producing aldehydes, alkanes, and alkenes are described herein. The aldehydes, alkanes, and alkenes can be used in biofuels.

  本文描述了生产醛、烷和烯的组合物和方法。这些醛、烷和烯可用于生物燃料。
• Hydroformylation process
  申请人：Dow Technology Investments LLC

  公开号：US10981851B2

  公开（公告）日：2021-04-20

  Some embodiments of the present invention relate to processes for reducing heavies formation in a solution comprising one or more aldehydes, such as a reaction fluid in a hydroformylation process. In some embodiments, the process comprises providing 0.1 to 5 wt. percent of an organic nitrogen compound based on the total weight of the aldehyde solution, the organic nitrogen compound comprising: wherein each of R1-R5 are independently hydrogen, an alkyl, or an aryl radical.

  本发明的一些实施方案涉及在包含一种或多种醛的溶液（如加氢甲酰化过程中的反应液）中减少重物形成的工艺。在一些实施方案中，该工艺包括提供基于醛溶液总重量 0.1 至 5 重量百分比的有机氮化合物，该有机氮化合物包括： 其中 R1-R5 中的每一个都独立地为氢、烷基或芳基。