(5beta)-胆甾烷-3-酮 | 601-53-6

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 类固醇和类固醇衍生物
• 中文名称: (5beta)-胆甾烷-3-酮
• 中文别名: 粪甾烷-3-醇
• 英文名称: coprostanone
• 英文别名: (+)-5β-cholestan-3-one；5β-cholestane-3-one；5β-Cholestan-3-one；5β-cholestanone；β-cholestanone；dihydrocholesterone；5beta-Cholestan-3-one；(5R,8R,9S,10S,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-1,2,4,5,6,7,8,9,11,12,14,15,16,17-tetradecahydrocyclopenta[a]phenanthren-3-one
• CAS: 601-53-6
• 化学式: C₂₇H₄₆O
• mdl: MFCD00064895
• 分子量: 386.662
• InChiKey: PESKGJQREUXSRR-JDIFZLMISA-N

物化性质

• 熔点：
  62-63 °C
• 沸点：
  210-215 °C(Press: 0.3 Torr)
• 密度：
  0.953±0.06 g/cm3(Predicted)
• 溶解度：
  可溶于氯仿（少许）
• 物理描述：
  Solid

计算性质

• 辛醇/水分配系数(LogP)：
  8.9
• 重原子数：
  28
• 可旋转键数：
  5
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.962
• 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：

  (5beta)-胆甾烷-3-酮 在 三氟乙酸 、 2-碘酰基苯甲酸 作用下， 以 二甲基亚砜 为溶剂， 反应 4.0h， 以45%的产率得到4-胆甾烯-3-酮
  参考文献：
  名称：

  Regioselective dehydrogenation of 3-keto-steroids to form conjugated enones using o-iodoxybenzoic acid and trifluoroacetic acid catalysis

  摘要：

  Mild and regioselective conversion of 3-keto-5 alpha- and 3-keto-5 beta-steroids (trans A/B- and cis A/B-ring juncture, respectively) to the corresponding enones (Delta(1)- and Delta(4)-3-ketones) by treatment with oiodoxybenzoic acid (IBX) catalyzed by trifluoroacetic acid (TFA) in DMSO, is described. The IBX-mediated reaction involved dehydrogenation of the alpha- and beta-hydrogen atoms of the 3-ketones to give the enones regioselectively in good isolated yields without concomitant formation of related dienones and trienones. (C) 2013 Elsevier Ireland Ltd. All rights reserved.

  DOI：

  10.1016/j.chemphyslip.2013.11.007
• 作为产物：
  描述：

  cholesterol 在 chromium(VI) oxide 、 镍 、 溶剂黄146 作用下， 生成 (5beta)-胆甾烷-3-酮
  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 hydrazones by hypervalent organoiodine reagents: Regeneration of the carbonyl group and facile syntheses of α-acetoxy and α-alkoxy azo compounds
  作者：Derek H.R. Barton、Joseph Cs. Jaszberenyi、Wansheng Liu、Tetsuro Shinada

  DOI：10.1016/0040-4020(96)00940-4

  日期：1996.11

  derivatives of α-keto esters were prepared. The carbonyl group was readily regenerated in high yield from phenylhydrazones through oxidative hydrolysis using hypervalent organoiodine(III) reagents—either bis(trifluoroacetoxy)-iodobenzene (BTIB) in aqueous acetonitrile or hydroxy(tosyloxy)iodobenzene (HTIB) in chloroform. α-Acetoxy phenyl- or methylazo compounds were readily synthesized by oxidation of the

  制备了各种α-酮酯的衍生物。使用高价有机碘（III）试剂-乙腈水溶液中的双（三氟乙酰氧基）-碘苯（BTIB）或氯仿中的羟基（甲苯磺酰氧基）碘苯（HTIB），可以通过氧化水解从苯hydr中高产率地再生羰基。通过用二氯甲烷或乙酸中的碘代苯二乙酸酯（IBDA）氧化相应的hydr，可以轻松合成α-乙酰氧基苯基或甲基偶氮化合物。α-甲氧基苯基或甲基偶氮化合物也可以通过在甲醇中氧化hydr来制备。讨论了氧化反应的机理。
• Highly chemoselective palladium-catalyzed conjugate reduction of .alpha.,.beta.-unsaturated carbonyl compounds with silicon hydrides and zinc chloride cocatalyst
  作者：Ehud. Keinan、Noam. Greenspoon

  DOI：10.1021/ja00283a029

  日期：1986.11

  experiments and 'H NMR studies, a catalytic cycle is postulated in which the first step involves reversible coordination of the palladium complex to the electron-deficient olefin and oxidative addition of silicon hydride to form a hydridopalladium olefin complex. Migratory insertion of hydride into the coordinated olefin produces an intermediate palladium enolate which, via reductive elimination, collapses back

  由可溶性钯催化剂、氢化硅烷和氯化锌组成的三组分体系能够有效地共轭还原α、不饱和酮和醛。最佳条件组包括二苯基硅烷作为最有效的氢化物供体，任何可溶于 0 或 I1 氧化态的钯配合物，当它被膦配体稳定时，以及作为最佳路易斯酸助催化剂的 ZnCl。该反应对于范围广泛的不饱和酮和醛非常普遍，并且对于这些迈克尔受体具有高度选择性，因为在这些条件下α，-不饱和羧酸衍生物的还原非常缓慢。当双氘代二苯基硅烷用于还原不饱和酮时，氘在底物的受阻较少的面上立体选择性地引入，并在 8 位上以区域选择性的方式引入。相反，当在痕量 D2O 存在下进行还原时，氘掺入发生在 a 位。在掺入氘的实验和 1 H NMR 研究的基础上，假定催化循环，其中第一步涉及钯配合物与缺电子烯烃的可逆配位和氢化硅的氧化加成以形成氢化钯烯烃配合物。氢化物迁移插入配位的烯烃产生中间体烯醇钯，通过还原消除，它塌缩回 Pd(0) 络合物和甲硅烷基烯
• Ammonium Formate/Palladium on Carbon: A Versatile System for Catalytic Hydrogen Transfer Reductions of Carbon-Carbon Double Bonds
  作者：Zdzisław Paryzek、Hanna Koenig、Bartłomiej Tabaczka

  DOI：10.1055/s-2003-41024

  日期：——

  Various carbon-carbon double bonds in olefins and α,β-unsaturated ketones were effectively reduced to the corresponding alkanes and saturated ketones, using ammonium formate as a hydrogen transfer agent in the presence ofPd/C as catalyst in refluxing methanol.

  以甲酸铵为氢转移剂，Pd/C为催化剂，甲醇回流。
• Mixed steroidal 1, 2, 4, 5- tetraoxane compounds and methods of making and using thereof
  申请人：——

  公开号：US20040019200A1

  公开（公告）日：2004-01-29

  Disclosed herein are mixed steroidal tetraoxanes having the following structural formula 1 1 wherein n is 0, 1, 2, or 3; R is H; ethanoyl, propanoyl, or benzoyl; R1 is H, methyl, ethyl, or isopropyl; R2 is H, methyl, or ethyl; R3 is H, methyl, or ethyl; R4 is H, methyl, ethyl, tert-butyl, phenyl, p-hydroxyphenyl, p-methoxyphenyl, or p-nitrophenyl, or 2 wherein Y is a C 1 -C 4 straight or branched-chain alkoxy, or 3 wherein W is N, R5 is hydrogen, methyl, ethyl, n-propyl, isopropyl, or methyl ethanoate 2-yl, and R6 is hydrogen, methyl, ethyl, or n-propyl, or R5 and R6 are part of a pyrrolidine or piperidine ring; X is a C 1 -C 4 straight or branched-chain alkoxy, a primary amino, a N-alkylamino wherein the alkyl is a straight-chain alkyl groups containing from 1 to 4 carbon atoms, methyl ethanoate-2-yl, N-phenylamino, p-nitrophenyl, N,N-dimethylamino, N,N-diethylamino, N,N-di(n-propyl)amino, N-pyrrolidino, or N-piperidino as single compounds, and any mixture of all possible stereoisomers at C(4″). n may be 0, 1, 2, or 3, and methods of making and using thereof. As disclosed herein, the mixed steroidal tetraoxanes of the present invention exhibit antimalarial, antibacterial, and antiproliferative activity. Thus, as disclosed herein, the mixed steroidal tetraoxanes of the present invention may be used to treat, prevent, or inhibit malaria, bacterial infections, and diseases and disorders associated with cell proliferation in a subject.

  本文披露了具有以下结构式1的混合类固醇四氧杂环戊烷： 1 其中n为0、1、2或3；R为H；乙酰基、丙酰基或苯甲酰基；R1为H、甲基、乙基或异丙基；R2为H、甲基或乙基；R3为H、甲基或乙基；R4为H、甲基、乙基、叔丁基、苯基、对羟基苯基、对甲氧基苯基或对硝基苯基，或 2 其中Y为C 1 -C 4 直链或支链烷氧基，或 3 其中W为N，R5为氢、甲基、乙基、正丙基、异丙基或乙酸甲酯-2-基，R6为氢、甲基、乙基或正丙基，或R5和R6是吡咯烷或哌啶环的一部分；X为C 1 -C 4 直链或支链烷氧基、一级氨基、N-烷基氨基，其中烷基是含有1至4个碳原子的直链烷基，乙酸甲酯-2-基、N-苯基氨基、对硝基苯基、N,N-二甲基氨基、N,N-二乙基氨基、N,N-二(正丙基)氨基、N-吡咯啉基或N-哌啶基作为单一化合物，以及在C(4″)处的所有可能立体异构体的任何混合物。n可以为0、1、2或3，以及其制备和使用方法。如本文所披露的，本发明的混合类固醇四氧杂环戊烷表现出抗疟疾、抗菌和抗增殖活性。因此，如本文所披露的，本发明的混合类固醇四氧杂环戊烷可用于治疗、预防或抑制受试者体内的疟疾、细菌感染以及与细胞增殖相关的疾病和疾病。
• Acceptorless Dehydrogenation of <i>N</i>-Heterocycles and Secondary Alcohols by Ru(II)-NNC Complexes Bearing a Pyrazoyl-indolyl-pyridine Ligand
  作者：Qingfu Wang、Huining Chai、Zhengkun Yu

  DOI：10.1021/acs.organomet.7b00902

  日期：2018.2.26

  Ruthenium(II) hydride complexes bearing a pyrazolyl-(2-indol-1-yl)-pyridine ligand were synthesized and structurally characterized by NMR analysis and X-ray single crystal crystallographic determinations. These complexes efficiently catalyzed acceptorless dehydrogenation of N-heterocycles and secondary alcohols, respectively, exhibiting highly catalytic activity with a broad substrate scope. The present

  合成了带有吡唑基-（2-吲哚-1-基）-吡啶配体的氢化钌（II）配合物，并通过NMR分析和X射线单晶晶体学测定对其结构进行了表征。这些配合物分别有效地催化了N-杂环和仲醇的无受体脱氢，表现出高催化活性，具有广泛的底物范围。本工作已经建立了构造高活性过渡金属配合物催化剂的策略，并为合成芳族N-杂环化合物和酮提供了原子经济和环境友好的方案。