4,5-dihydro-3-methylene-5-octyl-2(3H)-furanone | 65652-00-8

• 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: 4,5-dihydro-3-methylene-5-octyl-2(3H)-furanone
• 英文别名: α-methylene-γ-dodecalactone；dihydro-3-methylene-5-octyl-2(3H)-furanone；3-methylene-5-octyldihydrofuran-2(3H)-one；3-Methylidene-5-octyloxolan-2-one
• CAS: 65652-00-8
• 化学式: C₁₃H₂₂O₂
• 分子量: 210.316
• InChiKey: DHWBXQIRWNFCCJ-UHFFFAOYSA-N

物化性质

• 沸点：
  328.7±21.0 °C(Predicted)
• 密度：
  0.94±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.8
• 重原子数：
  15
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.77
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  (±)-二氢-5-辛基-2(3H)-呋喃酮 在 吡啶 、 sodium tetrahydroborate 、 sodium hydride 作用下， 以 甲醇 、 乙醚 为溶剂， 反应 10.0h， 生成 4,5-dihydro-3-methylene-5-octyl-2(3H)-furanone
  参考文献：
  名称：

  Synthesis and Biological Activity of α-Methylene-γ-lactones as New Aroma Chemicals

  摘要：

  Seven kinds of alpha -methylene-gamma -lactones with an alkyl group at the C-4 position were synthesized according to a previously described method, with yields of 28-34%. These alpha -methylene-gamma -lactones had characteristic and unique odors. All alpha -methylene-gamma -lactones added a roast-like odor to materials. The antimicrobial effects of alpha -methylene-gamma -lactones were investigated by using a paper disk diffusion method. The results showed the alpha -methylene-gamma -lactones inhibited the growth of three bacteria (Staphylococcus aureus, Escherichia coli, and Pseudomonas fluorescens) and two fungi (Saccharomyces cerevisiae and Aspergillus niger). In particular, alpha -methylene-gamma -undecalactone and alpha -methylene-gamma -dodecalactone exhibited potent inhibition of the growth of these microorganisms compared to butyl p-hydroxybenzoate as standard antibiotic. The umu test revealed that the alpha -methylene-gamma -lactones suppressed the SOS-inducing activity of three mutagens, furylfuramide, UV irradiation and Trp-P-1, respectively. The antimicrobial effects and the suppressive effects of SOS induction by alpha -methylene-gamma -lactones had a tendency to intensify as the number of carbons in the side chain increased.

  DOI：

  10.1021/jf000346t

文献信息

• SnCl2/KI-Mediated Allylation Reactions of Formaldehyde in Water
  作者：Mei-Huey Lin、Long-Zhi Lin、Tsung-Hsun Chuang

  DOI：10.1055/s-0030-1260757

  日期：2011.8

  An efficient procedure for SnCl2/KI-mediated allylation reactions of formaldehyde with a variety of allylic bromides in aqueous solution is reported. Under conditions developed in this effort, various homoallylic alcohols and 2-halohomoallylic alcohols are produced in good to excellent yields.

  报道了一种在水溶液中通过SnCl2/KI介导的与多种烯丙基溴的甲醛烯丙基化反应的高效程序。在该条件下，各种同烯丙基醇和2-卤代同烯丙基醇以良好至优异的产率生成。
• Manganese(III) .gamma.-lactone annulation with substituted acids
  作者：William E. Fristad、John R. Peterson、Andreas B. Ernst

  DOI：10.1021/jo00217a025

  日期：1985.8
• One-pot sequential deoximation and allylation reactions of aldoximes in aqueous solution
  作者：Mei-Huey Lin、Long-Zhi Lin、Tsung-Hsun Chuang、Han-Jun Liu

  DOI：10.1016/j.tet.2012.01.074

  日期：2012.3

  A simple procedure has been developed for conducting tin-mediated deoximation and allylation reactions of aldoximes in water to form homoallylic alcohols. Employing the new conditions, various homoallylic alcohols were produced in good to excellent yields. (C) 2012 Elsevier Ltd. All rights reserved.
• Asymmetric synthesis of .alpha.-methylene-.gamma.-butyrolactones using chiral N-monosubstituted 2-[(tributylstannyl)methyl]propenamides
  作者：Kazuhiko Tanaka、Hidemi Yoda、Yutaka Isobe、Aritsune Kaji

  DOI：10.1021/jo00360a038

  日期：1986.5
• FRISTAD, W. E.;PETERSON, J. R.;ERNST, A. B., J. ORG. CHEM., 1985, 50, N 17, 3143-3148
  作者：FRISTAD, W. E.、PETERSON, J. R.、ERNST, A. B.

  DOI：——

  日期：——