cis-hexahydro-2H-cyclopenta[b]furan-2-one | 43119-29-5

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 英文名称: cis-hexahydro-2H-cyclopenta[b]furan-2-one
• 英文别名: (+/-)-(3aR,6aR)-hexahydro-2H-cyclopenta[b]furan-2-one；(3a,6a)-hexahydro-2H-cyclopenta[b]furan-2-one；cis-hexahydrocyclopenta[b]furan-2-one；hexahydrocyclopenta[b]furan-2-one；(+/-)-cis-hexahydro-cyclopenta[b]furan-2-one；(+/-)-cis-Hexahydro-cyclopenta[b]furan-2-on；(3aS,6aS)-Hexahydro-2H-cyclopenta[b]furan-2-one；(3aS,6aS)-3,3a,4,5,6,6a-hexahydrocyclopenta[b]furan-2-one
• CAS: 43119-29-5
• 化学式: C₇H₁₀O₂
• 分子量: 126.155
• InChiKey: DICZUTMNXOMHQD-WDSKDSINSA-N

物化性质

• 沸点：
  254.8±8.0 °C(Predicted)
• 密度：
  1.141±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1
• 重原子数：
  9
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.86
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  cis-hexahydro-2H-cyclopenta[b]furan-2-one 在 lithium aluminium tetrahydride 作用下， 以 乙醚 为溶剂， 反应 1.0h， 生成 (+/-)-cis-2-(2-hydroxyethyl)cyclopentanol
  参考文献：
  名称：

  Synthesis of (R)-6,7-dihydro-5-HETE lactone and (S)-6,7-dihydro-5-HETE lactone by using novel yeast reduction as a key reaction

  摘要：

  新发现的酵母还原法可从外消旋酮酯 12 中得到（1R,2S）-羟基酯 10 和（1S,5S）-内酯 11。10 和 11 转化为内酯 15 和 17 后，对映体过量率分别为 99% 和 95%。(R)-6,7-Dihydro-5-HETE lactone 5 和 (S)-6,7-Dihydro-5-HETE lactone 6 分别由 15 和 17 合成。

  DOI：

  10.1039/b206843p
• 作为产物：
  描述：

  前列腺素中间体 在 palladium on activated charcoal 氢气 作用下， 以 乙酸乙酯 为溶剂， 生成 cis-hexahydro-2H-cyclopenta[b]furan-2-one
  参考文献：
  名称：

  Common modes of action of γ-butyrolactones and pentylenetetrazol on the GABAA receptor-ionophore complex

  摘要：

  The effects of pentylenetetrazol and bicyclic gamma-butyrolactones of similar stereostructures were studied on the convulsant and benzodiazepine binding sites and chloride ionophore activity of the gamma-aminobutyric acid (GABA(A)) receptor-complex. Bicyclic gamma-butyrolactones displayed millimolar IC50 values and low stereoselectivities on [S-35]t-butylbicyclophosphorothionate (TBPS) binding to the convulsant sites in synaptosomal membranes of rat forebrains. Ring saturation of bicyclic gamma-butyrolactones decreased their IC50 values by one order of magnitude. The IC50 values of saturated bicyclic gamma-butyrolactones and pentyienetetrazol were increased by GABA versus its antagonist R 5135 (3 alpha-hydroxy-16-imino-5 beta,17-aza-androstan-11-one). A bicyclic gamma-butyrolactone and pentylenetetrazol accelerated the dissociation of [S-35]TBPS, displaced [H-3]flumazenil binding in two phases and blocked the muscimol-elicited chloride currents in patch-clamped cortical neurones in culture in a similar manner. These similar effects on binding and ionophore function support their common modes of action on the GABA(A) receptor-ionophore complex.

  DOI：

  10.1016/0922-4106(94)90010-8

文献信息

• (HMe2SiCH2)2: A Useful Reagent for B(C6F5)3-Catalyzed Reduction–Lactonization of Keto Acids: Concise Syntheses of (–)-cis-Whisky and (–)-cis-Cognac Lactones
  作者：Zhenlei Song、Hengmu Xie、Ji Lu、Yingying Gui、Lu Gao

  DOI：10.1055/s-0036-1588488

  日期：2017.11

  (HMe2SiCH2)2 has been utilized as a useful reagent for B(C6F5)3-catalyzed reduction–lactonization of keto acids to synthesize γ- and δ-lactones. The process led concisely to (–)-cis-whisky and (–)-cis-cognac lactones in respective overall yields of 32% and 36%.

  (HMe2SiCH2)2 已被用作 B(C6F5)3 催化的酮酸还原-内酯化合成γ-和δ-内酯的有用试剂。该过程简明地导致 (-)-cis-whisky 和 ​​(-)-cis-cognac 内酯的总产率分别为 32% 和 36%。
• Stereocontrolled Synthesis of Substituted Bicyclic Ethers through Oxy-Favorskii Rearrangement: Total Synthesis of (±)-Communiol E
  作者：Shoji Kobayashi、Tatsuhiro Kinoshita、Takuji Kawamoto、Masato Wada、Hiroyuki Kuroda、Araki Masuyama、Ilhyong Ryu

  DOI：10.1021/jo201064h

  日期：2011.9.2

  The potential of the oxy-Favorskii rearrangement to form branched cis-fused bicyclic ethers was explored. Both tertiary and quaternary centers were constructed in highly stereospecific manners. Methanol and primary amines were effective nucleophiles for the rearrangement. The total synthesis of (±)-communiol E was achieved based on this method.

  探索了氧基-Favorskii重排形成支链顺式稠合双环醚的潜力。三级和四级中心都是以高度立体化的方式构建的。甲醇和伯胺是有效的重排亲核试剂。基于该方法，实现了（±）-香酚E的全合成。
• PROSTAGLANDIN SYNTHESIS AND INTERMEDIATES FOR USE THEREIN
  申请人：ALBERICO Dino

  公开号：US20100056807A1

  公开（公告）日：2010-03-04

  Fused cyclopentane—4-substituted 3,5-dioxalane lactone compounds useful as an intermediate in the synthesis of prostaglandin analogs are provided. The compounds have the formula A: wherein R represents an aryl group such as p-methoxyphenyl. This compound can be reacted with a lower alkyl aluminum compound to open the dioxalane ring and reduce the lactone to lactol, without over-reducing to diol. The resulting compound can be functionalized to insert chemical side groups of target prostaglandins, adding the required α-side chain and then the required ω-side chain sequentially and independently of each other. The compounds and process are particularly suitable for preparing lubiprostone.

  提供了作为合成前列腺素类似物中间体有用的融合环戊烷-4-取代3,5-二氧杂环戊内酯化合物。这些化合物具有以下公式A： 其中R代表芳基，如对甲氧基苯基。 这种化合物可以与较低的烷基铝化合物反应，打开二氧杂环戊内酯环并将内酯还原为内醇，而不会过度还原为二醇。所得化合物可以被官能化，以插入目标前列腺素的化学侧链，依次独立地添加所需的α-侧链和所需的ω-侧链。这些化合物和过程特别适用于制备利布普罗斯通。
• Conversion of olefins into γ-butyrolactones
  作者：Stephen P. Brown、Balkrishna S. Bal、Harold W. Pinnick

  DOI：10.1016/s0040-4039(01)92374-3

  日期：1981.1

  Cyclopropyl esters derived from olefins undergo ring opening with iodotrimethylsilane and, after base treatment, γ-butyrolactones are obtained.

  衍生自烯烃的环丙基酯与碘代三甲基硅烷发生开环反应，经过碱处理后，获得γ-丁内酯。
• Calcium(II)- and Triflimide-Catalyzed Intramolecular Hydroacyloxylation of Unactivated Alkenes in Hexafluoroisopropanol
  作者：Chenxiao Qi、Shengwen Yang、Vincent Gandon、David Lebœuf

  DOI：10.1021/acs.orglett.9b02705

  日期：2019.9.20

  hydroacyloxylation of unactivated alkenes, offering a streamlined access to relevant γ-lactones, which features the utilization of either a calcium(II) salt or triflimide as a catalyst in hexafluoroisopropanol. This method could be applied to the synthesis of natural products and the late-stage functionalization of natural and bioactive molecules. Additionally, DFT computations were used to elucidate the twist

  我们报告了未活化烯烃的有效分子内氢酰氧基化作用，提供了对相关γ-内酯的流线型通道，其特征在于利用了钙盐（II）或三氟甲酰亚胺作为六氟异丙醇中的催化剂。该方法可用于天然产物的合成以及天然和生物活性分子的后期功能化。此外，DFT计算用于阐明在未活化烯烃的加氢酰胺化和加氢酰氧基化之间有关5和6元环形成的反应性扭曲。