dimethyl 3,4-seco-5β-cholestane-3,4-dioate | 1180-20-7

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: dimethyl 3,4-seco-5β-cholestane-3,4-dioate
• 英文别名: 3.4-seco-5β-cholestanedioic acid-(3.4)-dimethyl ester；3.4-Seco-5β-cholestandisaeure-(3.4)-dimethylester
• CAS: 1180-20-7
• 化学式: C₂₉H₅₀O₄
• 分子量: 462.714
• InChiKey: UXXWZUVYKCJQIA-XHQDUVANSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  7.05
• 重原子数：
  33.0
• 可旋转键数：
  9.0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.93
• 拓扑面积：
  52.6
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为产物：
  描述：

  cholesterol 在 重氮甲烷 、 chromium(VI) oxide 、 乙醚 、 镍 、 溶剂黄146 作用下， 生成 dimethyl 3,4-seco-5β-cholestane-3,4-dioate
  参考文献：
  名称：

  Full-Scale Evaluation of Mercury Control with Sorbent Injection and COHPAC at Alabama Power E.C. Gaston

  摘要：

  The overall objective of this project was to determine the cost and impacts of leg control using sorbent injection into a Compact Hybrid Particulate Collector (COHPAC) at Alabama Power's Gaston Unit 3. This test is part of a program funded by the U.S. Department of Energy's National Energy Technology Laboratory (NETL) to obtain the necessary information to assess the costs of controlling Hg from coal-fired utility plants that do not have scrubbers for SO2 control. The economics will be developed based on various levels of Hg control.Gaston Unit 3 was chosen for testing because COHPAC represents a cost-effective retrofit option for utilities with existing electrostatic precipitators (ESPs). COHPAC is an EPRI-patented concept that places a high air-to-cloth ratio baghouse downstream of an existing ESP to improve overall particulate collection efficiency. Activated carbons were injected upstream of COHPAC and downstream of the ESP to obtain performance and operational data.Results were very encouraging, with up to 90% removal of Hg for short operating periods using powdered activated carbon (PAC). During the long-term tests, an average Hg removal efficiency of 78% was measured. The PAC injection rate for the long-term tests was chosen to maintain COHPAC cleaning frequency at less than 1.5 pulses/bag/hr.

  DOI：

  10.1080/10473289.2002.10470832

文献信息

• Oxidation of 2-Substituted Cycloalkanones with Cerium(IV) Sulfate Tetrahydrate in Alcohols and Acetic Acid
  作者：Liangyou He、C. Akira Horiuchi

  DOI：10.1246/bcsj.72.2515

  日期：1999.11

  The reaction of 2-substituted cycloalkanones with cerium(IV) sulfate tetrahydrate (CS) in alcohols and acetic acid gave the corresponding alkyl esters of oxo acids (80—96%) and oxo acids (78—96%), respectively, by oxidative cleavage of the C(R)–C=O bond. In the case of 2-iodocycloalkanones in methanol, the dimethyl ester was obtained in good yield. A treatment of 5α-cholestan-3-one with CS in methanol

  2-取代环烷酮与四水合硫酸铈 (CS) 在醇和乙酸中反应，分别通过氧化反应生成相应的含氧酸 (80-96%) 和含氧酸 (78-​​96%) 烷基酯C(R)–C=O 键的断裂。在甲醇中的 2-碘环烷酮的情况下，以良好的收率获得二甲酯。在甲醇中用 CS 处理 5α-cholestan-3-one 以良好的收率产生 2,3-seco 衍生物的 2-缩醛 3-酯。还讨论了铈 (IV) 和铜 (II) 盐的影响。
• Über Gallensäuren und verwandte Stoffe. 17. Mitteilung. Bildung von Lactonen aus Ketonen mit Benzopersäure
  作者：V. Burckhardt、T. Reichstein

  DOI：10.1002/hlca.19420250704

  日期：1942.12.1
• Sur les constituants de l'ambre gris II. Ambréine et Coprostanone
  作者：E. Lederer、F. Marx、D. Mercier、G. Pérot

  DOI：10.1002/hlca.19460290563

  日期：——
• Windaus; Mielke, Justus Liebigs Annalen der Chemie, 1938, vol. 536, p. 116,120
  作者：Windaus、Mielke

  DOI：——

  日期：——