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3β-acetoxy-5,6-epoxycholestane

中文名称
——
中文别名
——
英文名称
3β-acetoxy-5,6-epoxycholestane
英文别名
3β-acetoxy-5,6-epoxycholestan;3β-acetoxy-cholest-5,6-epoxide;5,6-epoxycholestan-3β-yl acetate;5,6-oxy-cholesteryl acetate;5,6-epoxy-cholesteryl acetate;[(1S,2R,5S,11S,12S,15R,16R)-2,16-dimethyl-15-[(2R)-6-methylheptan-2-yl]-8-oxapentacyclo[9.7.0.02,7.07,9.012,16]octadecan-5-yl] acetate
3β-acetoxy-5,6-epoxycholestane化学式
CAS
——
化学式
C29H48O3
mdl
——
分子量
444.698
InChiKey
VEEBKUQFPONGGR-SHLFAZGESA-N
BEILSTEIN
——
EINECS
——
  • 物化性质
  • 计算性质
  • ADMET
  • 安全信息
  • SDS
  • 制备方法与用途
  • 上下游信息
  • 反应信息
  • 文献信息
  • 表征谱图
  • 同类化合物
  • 相关功能分类
  • 相关结构分类

计算性质

  • 辛醇/水分配系数(LogP):
    8.5
  • 重原子数:
    32
  • 可旋转键数:
    7
  • 环数:
    5.0
  • sp3杂化的碳原子比例:
    0.97
  • 拓扑面积:
    38.8
  • 氢给体数:
    0
  • 氢受体数:
    3

上下游信息

  • 下游产品
    中文名称 英文名称 CAS号 化学式 分子量

反应信息

  • 作为反应物:
    描述:
    3β-acetoxy-5,6-epoxycholestane高氯酸 、 silver carbonate 作用下, 以 氯仿溶剂黄146丙酮 为溶剂, 反应 103.0h, 生成 3β-acetoxy-7α-bromo-5-hydroxy-5α-cholestan-6-one
    参考文献:
    名称:
    Studies of the synthesis of 5-hydroxy 6-keto steroids and related 6-keto steroids
    摘要:
    合成了5-羟基-5α-和5β-胆甾烷-6-酮(11和13)及其3β-乙酰氧(10和21)和3β-苄氧衍生物(12和19),并描述了它们的合成,以及10和21的7α-氘代衍生物的合成。还讨论了这些化合物的5-甲氧基和5-甲基类似物的合成研究。已经证明,用叔丁氧化钾处理12可产生5-羟基-5β-胆甾-3-烯-6-酮(14)及其Δ2异构体15。6-硝基胆固醇醋酸酯(50)与二甲基亚铜酸锂反应,主要产物是3α,5-环-5α-胆甾烷-6-酮(E)-肟(51)。
    DOI:
    10.1139/v87-369
  • 作为产物:
    描述:
    胆固醇醋酸酯 在 CoCl2*ephedrine 、 氧气异丁醛 作用下, 以 1,2-二氯乙烷 为溶剂, 以89%的产率得到3β-acetoxy-5,6-epoxycholestane
    参考文献:
    名称:
    钴 (II) 配合物催化环氧化与分子氧
    摘要:
    摘要 钴 (II) 配合物 1 或 2 在分子氧和 2-甲基丙醛存在下以高产率催化烯烃的环氧化。
    DOI:
    10.1080/00397919308013786
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文献信息

  • Cobalt(II) Schiff's base complex catalysed oxidation of alcohols with dioxygen in the presence of ethyl 2-oxocyclopentanecarboxylate
    作者:T. Punniyamurthy、Javed Iqbal
    DOI:10.1016/s0040-4039(00)76726-8
    日期:1994.6
    Cobalt(II) Schiff's base complex 1 catalyses the oxidation of primary and secondary alcohols to aldehydes and ketones respectively, in the presence of dioxygen and ethyl 2-oxocyclopentanecarboxylate 2 at 60–70° C.
    钴(II)席夫碱络合物1起催化作用伯醇和仲醇,以醛和酮的分别的氧化,在分子氧和2-氧代环戊烷羧酸的存在下2在60-70℃下
  • Synthesis of unsaturated carbonyl compounds via a chromium-mediated allylic oxidation by 70% tert.butylhydroperoxide
    作者:Jacques Muzart
    DOI:10.1016/s0040-4039(00)96591-2
    日期:1987.1
    Alkenes were converted into α,β-unsaturated carbonyl compounds using excess of tert.butylhydroperoxide and catalytic amounts of chromiumVI oxide at room temperature. Fair yields and conversions were obtained from Δ5-steroids while allylic oxidation of acyclic alkenes was less efficient. Epoxidation of the double bond, sometimes observed, remained a minor reaction pathway.
    烯烃转化成使用过量tert.butylhydroperoxide和催化量的铬的α,β不饱和羰基化合物VI在室温下的氧化。公平的产率和转化率从Δ得到5而无环烯烃的烯丙基氧化是效率较低-steroids。有时观察到双键的环氧化仍然是次要的反应途径。
  • A ruthenium catalyzed oxidation of steroidal alkenes to enones
    作者:Ross A. Miller、Wenjie Li、Guy R. Humphrey
    DOI:10.1016/0040-4039(96)00586-2
    日期:1996.5
    A new protocol for oxidizing steroidal alkenes to enones has been developed.
    已经开发了将甾族烯烃氧化成烯酮的新方案。
  • Further studies on the oxy-functionalization of cholesteryl acetate with tert-butyl hydroperoxide and tris(acetylacetonato)iron(III).
    作者:MICHIYA KIMURA、TOSHIKI MUTO
    DOI:10.1248/cpb.29.1862
    日期:——
    The time courses of the spectral change, decomposition, and consumption of Fe (acac)3, tert-butyl (τBu) hydroperoxide, and cholesteryl acetate, respectively, in the title reaction were followed and the reaction was inferred to be initiated by the active species originating from the interaction of the ferric chelate and the hydroperoxide. Radical processes seem to participate in this reaction, since it was completely inhibited by a radical scavenger (BHT), which was also effective in blocking the further transformation of the intermediary C (7)-τBu-peroxide. The τBuBr-KO2 system generating τBuOO radicals oxidized cholesteryl methylether almost exclusively to an epoxide. The τBuOOH-KO2 system generating τBuO radicals, on the other hand, abstracted the allylic C (7)-hydrogen to give the τBu-peroxide, the alcohol, and the ketone, but no epoxide. The intermediary τBu-peroxide was assumed to be produced also by the nucleophilic attack of τBuOOH on the allylic cation, to which the initially formed C (7)-radical species was further oxidized. A proposed mechanism is presented for the title reaction.
    在标题反应中,分别追踪了Fe(acac)3、叔丁基过氧化氢(τBuOOH)和胆固醇乙酸酯的光谱变化、分解和消耗的时间进程,并推测该反应由铁螯合物与过氧化氢相互作用产生的活性物种引发。由于反应被自由基清除剂(BHT)完全抑制,后者还能阻止中间体C(7)-τBu-过氧化物的进一步转化,因此自由基过程似乎参与了这一反应。产生τBuOO自由基的τBuBr-KO2体系几乎只将胆固醇甲基醚氧化为环氧化物。而产生τBuO自由基的τBuOOH-KO2体系则从烯丙位C(7)夺取氢,生成τBu-过氧化物、醇和酮,但没有环氧化物。中间体τBu-过氧化物被认为是由τBuOOH对烯丙正离子的亲核攻击产生的,最初的C(7)-自由基物种进一步氧化成烯丙正离子。为标题反应提出了一个可能的机理。
  • Aerobic Epoxidation of Olefinic Compounds Catalyzed by Tris(1,3-diketonato)iron(III)
    作者:Toshihiro Takai、Eiichiro Hata、Tohru Yamada、Teruaki Mukaiyama
    DOI:10.1246/bcsj.64.2513
    日期:1991.8
    Tris[1,3-bis(p-methoxyphenyl)-1,3-propanedionato]iron(III) (Fe(dmp)3) was found to be an excellent catalyst for oxygenation of a number of olefinic compounds including styrene analogues and olefinic alcohols into the corresponding epoxides in good to quantitative yields with combined use of molecular oxygen and an aldehyde at room temperature.
    三[1,3-双(对甲氧基苯基)-1,3-丙二酮基]铁(III) (Fe(dmp)3) 被发现是许多烯烃化合物(包括苯乙烯类似物和烯烃化合物)氧化的极好催化剂。在室温下结合使用分子氧和醛,将醇以良好到定量的产率转化为相应的环氧化物。
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