5-苄基-3-亚甲基-二氢呋喃-2-酮 | 77547-07-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酯类
• 中文名称: 5-苄基-3-亚甲基-二氢呋喃-2-酮
• 英文名称: γ-benzyl-α-methylene-γ-butyrolactone
• 英文别名: 4-benzyl-2-methylenebutyrolactone；5-Benzyl-3-methylideneoxolan-2-one
• CAS: 77547-07-0
• 化学式: C₁₂H₁₂O₂
• mdl: MFCD09030736
• 分子量: 188.226
• InChiKey: XXZZLJOGOSEOLI-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

安全信息

• 海关编码：
  2932209090

反应信息

• 作为反应物：
  描述：

  5-苄基-3-亚甲基-二氢呋喃-2-酮 、 ethyl N-{[(4-nitrobenzene)sulfonyl]oxy}carbamate 在 calcium oxide 作用下， 以 二氯甲烷 为溶剂， 生成 6-benzyl-4-oxo-5-oxa-1-ethoxycarbonyl-1-azaspiro[2,4]bicycloheptane 、 6-benzyl-4-oxo-5-oxa-1-ethoxycarbonyl-1-azaspiro[2,4]bicycloheptane (anti)
  参考文献：
  名称：

  Spiroaziridines from 4-Substituted α-Ylidene-γ-butyro Lactones

  摘要：

  DOI：

  10.3987/com-05-10376
• 作为产物：
  描述：

  2-亚甲基-4-硝基-5-苯基戊酸乙酯 以78%的产率得到5-苄基-3-亚甲基-二氢呋喃-2-酮
  参考文献：
  名称：

  A New Synthesis of exo-Methylene Butyrolactones from Nitroalkanes

  摘要：

  开发了一种多功能的路线用于exo-亚甲基丁内酯，通过采用三步反应序列实现，首先是将一烷基硝基烷1与乙基(2-溴甲基)丙烯酸酯2进行迈克尔加成，然后对得到的硝基衍生物3进行内夫转化，最后对所获得的酮酯4进行内酯化。该方法对酯、C=C双键和羟基等重要官能团具有化学选择性。

  DOI：

  10.1055/s-2001-16098

文献信息

• 2-Diethoxyphosphoryl-4-nitroalkanoates - Versatile Intermediates in the ­Synthesis of α-Alkylidene-γ-lactones and Lactams
  作者：Tomasz Janecki、Edyta Błaszczyk、Henryk Krawczyk

  DOI：10.1055/s-2004-835656

  日期：——

  Michael addition of various nitroalkanes 7a-f to ethyl (2-diethoxyphosphoryl)acrylate (6) gave 2-diethoxyphosphoryl-4-nitroalkanoates 8a-f. Transformation of the nitro functionality into hydroxy or amino group and cyclization yielded 3-(diethoxyphosphoryl)tetrahydro-2-furanones 11a-e or 3-(diethoxyphosphoryl)pyrrolidin-2-ones 14a-e, respectively. These compounds were then used in Horner-Wadsworth-Emmons olefinations of aldehydes to give 3-alkylidenedihydrofuran-2-ones 12a-e or 17a-c and 3-methylidenepyrrolidin-2-ones 15a-e.

  将各种硝基烷烃 7a-f 与(2-二乙氧基磷酰)丙烯酸乙酯 (6) 迈克尔加成，可得到 2-二乙氧基磷酰-4-硝基烷酸酯 8a-f。将硝基官能团转化为羟基或氨基并环化后，分别得到 3-(二乙氧基磷酰)四氢-2-呋喃酮 11a-e 或 3-(二乙氧基磷酰)吡咯烷-2-酮 14a-e。然后将这些化合物用于霍纳-沃兹沃斯-艾蒙斯醛的烯化反应，得到 3-亚烷基二氢呋喃-2-酮 12a-e 或 17a-c，以及 3-亚甲基吡咯烷-2-酮 15a-e。
• Synthesis and Antibacterial and Anticancer Evaluations of α-Methylene-γ-butyrolactones
  作者：Ned D. Heindel、John A. Minatelli

  DOI：10.1002/jps.2600700117

  日期：1981.1

  Abstract Nine new α-methylene-γ-butyrolactones were synthesized by the Reformatsky condensation of ethyl α-bromomethylacrylate with kelones, aldehydes, and an epoxide. A. unique spirobutyrolactone class was prepared by reaction of the zinc alkyl derivative and N -methylisatins. The compounds were evaluated against L-1210 and P-388 leukemia and the 9KB carcinoma of the nasopharynx. They also were screened

  摘要通过α-溴甲基丙烯酸乙酯与甲酮，醛和环氧化物的Reformatsky缩合反应，合成了九种新的α-亚甲基-γ-丁内酯。通过烷基锌衍生物和N-甲基靛红的反应制备独特的螺丁内酯类。对化合物进行了抗L-1210和P-388白血病以及9KB鼻咽癌的评估。还通过杀微生物和抗真菌试验对它们进行了筛选。5个碘-N-甲基异丝氨酸的螺亚甲基内酯在P-388、9KB和抗真菌药物筛选中显示出活性。
• A New Synthesis of γ-Substituted α-Methylene-γ-butyrolactones (2-Methylene-4-alkanolides) using Catalysis by SnCI₂/Amberlyst 15
  作者：Patrice Talaga、Marcel Schaeffer、Claude Benezra、Jean-Luc Stampf

  DOI：10.1055/s-1990-26930

  日期：——

  Reaction of α-bromomethylacrylic acid with aldehydes or ketones in an SnCl2/amberlyst 15/THF/H2O system affords 2-methylene-4-alkanolides in mostly good yields.

  在 SnCl2/amberlyst 15/THF/H2O 体系中，δ-溴甲基丙烯酸与醛或酮发生反应，可生成 2-亚甲基-4-烷醇，大部分产率良好。
• Novel Synthesis, Cytotoxic Evaluation, and Structure−Activity Relationship Studies of a Series of α-Alkylidene-γ-lactones and Lactams
  作者：Tomasz Janecki、Edyta Błaszczyk、Kazimierz Studzian、Anna Janecka、Urszula Krajewska、Marek Różalski

  DOI：10.1021/jm048970a

  日期：2005.5.1

  5-Alkyl- and 5-arylalkyl-3-methylenedihydrofuran-2-ones 13a-e, 3-alkylidenedihydrofuran-2-ones 18a-c, and 3-methylenepyrrolidin-2-ones 16a-e were synthesized utilizing ethyl 2-diethoxyphosphoryl-4-nitroalkanoates 9a-e as common intermediates. All obtained compounds were tested against L-1210, HL-60, and NALM-6 leukemia cells. The highest cytotoxic activity was observed for 3-methylenefuranones 13d,e bearing benzyl or 3,4-dimethoxyphenylmethyl substituents at position 5, with IC50 values of 5.4 and 6.0 mu M, respectively. Contrary to the literature reports, no enhancement in activity due to the presence of a hydroxy group was found when the cytotoxicity of furanones 13a,b,d and 5-(1'-hydroxyalkyl)-3-methylenedihydrofuran-2-ones 6a,b,d was compared. The anticancer activity of pyrrolidinones 16a-e and 3-alkylidenefuranones 18a-c was much weaker than that of furanones 13a-e.
• New antifungal scaffold derived from a natural pharmacophore: Synthesis of α-methylene-γ-butyrolactone derivatives and their antifungal activity against Colletotrichum lagenarium
  作者：Feng Jun-Tao、Wang De-Long、Wu Yong-Ling、Yan He、Zhang Xing

  DOI：10.1016/j.bmcl.2013.05.073

  日期：2013.8

  Thirty new and thirty-four known analogues were designed and synthesized to improve the potential use of the alpha-methylene-gamma-butyrolactone ring, a natural pharmacophore. All structures were confirmed by H-1 and C-13 NMR, MS, and single-crystal X-ray diffraction analyses. The results of antifungal and cytotoxic activity indicated that the synthesized analogues showed significant inhibitory activity and limited selectivity. Compound 45 exhibited the highest antifungal activity with IC50 = 22.8 mu M but moderate cytotoxic activity with IC50 = 28.5 mu M (against BGC823 cell line) and 7.7 mu M (against HeLa cell line). Analysis of structure-activity relationships revealed that the incorporation of an aromatic ring into the beta, gamma positions of the lactone ring improved antifungal activity, and that the introduction of electron-withdrawing groups into the aromatic rings increased the activity compared with electron-donating groups. The above results identified 4-phenyl-3-phenyl-2-methylenebutyrolactone (33) as a lead scaffold for discovering and developing novel and improved crop-protection agents. (C) 2013 Elsevier Ltd. All rights reserved.