longifolin | 39007-94-8

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 杂芳族化合物
• 英文名称: longifolin
• 英文别名: 3-methyl-2-[(E)-3-methyl-4-(4-methylfuran-2-yl)but-2-enyl]furan
• CAS: 39007-94-8
• 化学式: C₁₅H₁₈O₂
• 分子量: 230.307
• InChiKey: KATZGWUZXSGURX-NYYWCZLTSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  longifolin 在 四氧化锇 作用下， 以 吡啶 为溶剂， 反应 2.0h， 以85%的产率得到2-methyl-4-(3'-methyl-2'-furyl)-1-(4''-methyl-2''-furyl)-2,3-butanediol
  参考文献：
  名称：

  地中海海绵新的富良野倍半萜

  摘要：

  东比利牛斯群岛地中海地区的海绵混合物显示，除已知的海绵产品外，还包含已知的海绵产品Longifolin （1），Avarol（（+）- 3）和Avarone（4）和陆地植物产品倍半乳糖呋喃（2）。新呋喃-倍半萜tavacfuran（= 3-甲基-2 - [（3' ž）-3'-甲基-4“ -甲基-2” -呋喃基-3'-丁烯基]呋喃;（5）和tavacpallescensin（= 5 ，10-二氢-6,9-二甲基-4 H-苯并[5,6]环庚[1,2- b ]呋喃; 6）和新的呋喃丁烯内酯倍半萜类化合物tavacbutenolide-1（=（±-4-乙氧基-2-甲基-4-）[（2'E）-2′-甲基-4′-（3″-甲基-2″-呋喃基）-2′-丁烯基] -2-丁烯-4-油化物；（±） - 7）和tavacbutenolide-2（=（±）-4-乙氧基-3-甲基-4- [2' ë）-3'-甲基-4' -

  DOI：

  10.1002/hlca.19850680523
• 作为产物：
  描述：

  3-甲基呋喃 在 N-溴代丁二酰亚胺(NBS) 、 copper(l) iodide 、 正丁基锂 、 偶氮二异丁腈 、 对甲苯磺酸 作用下， 以 甲醇 、 乙醚 、 水 为溶剂， 反应 11.0h， 生成 longifolin
  参考文献：
  名称：

  一烷基和二烷基呋喃合成的新方面

  摘要：

  在六甲基磷酸三酰胺存在下，通过将3-锂呋喃与各种亲电试剂进行烷基化反应，可以得到3-取代的呋喃系统。3-甲基呋喃的2-或5-位被甲硅烷基化以高区域选择性封闭。在将剩余的游离α-位置金属化和烷基化并随后进行甲硅烷基化之后，得到2,3-和2,4-二取代的呋喃。这些方法用于合成天然存在的化合物乌索尔醇化物（）和longifolin（）。

  DOI：

  10.1016/s0040-4020(01)86685-0

文献信息

• BOCK, INGE;BORNOWSKI, HANS;RANFT, ANDREAS;THEIS, HEINZ, TETRAHEDRON, 46,(1990) N, C. 1199-1210
  作者：BOCK, INGE、BORNOWSKI, HANS、RANFT, ANDREAS、THEIS, HEINZ

  DOI：——

  日期：——
• BIOLOGICAL SOLAR PANEL DEVICES, ARRAYS, METHODS AND SYSTEMS FOR THE COLLECTION OF VOLATILE ORGANIC MOLECULES
  申请人：Burbaum Jonathan J.

  公开号：US20110262986A1

  公开（公告）日：2011-10-27

  Provided herein are devices, arrays, methods, systems, and other subject matter comprising a biological solar panel device comprising: (a) a layer comprising a material is transparent or translucent to light; (b) a photosynthetic layer comprising a material that uses carbon dioxide and water in the presence of sunlight to release a volatile organic molecule, wherein the photosynthetic layer is separated from the transparent or translucent material by a gas layer; and (c) a layer that provides support for the material that releases a volatile organic molecule.
• CORROSION RESISTANT COMPOSITIONS AND METHODS
  申请人：Malshe Vinod C.

  公开号：US20190315971A1

  公开（公告）日：2019-10-17

  Coatings for a substrate include a paint or a lacquer and about 0.1% or more particles of a bi-axially oriented metalized polymer film. The film may not be soluble in a solvent or a dispersion medium of the paint or the lacquer. Coatings may be formed by bi-axially orienting a polymer film to obtain a bi-axially oriented polymeric film having thickness of at least 1μ followed by a vacuum metalizing to obtain a bi-axially oriented metalized polymer film, shredding the bi-axially oriented metalized polymer film to form the particles to at least 1×1 mm, selecting a solvent as system or a dispersion medium of paint in which the particles of the polymer film is not substantially soluble, preparing a paint or a coating composition by using selected solvent, and dispersing the shredded particles of oriented metalized polymer film in the paint as a primer, under coat, or top coat.
• [EN] CORROSION RESISTANT COMPOSITION<br/>[FR] COMPOSITION ANTICORROSION
  申请人：MALSHE VINOD

  公开号：WO2018116320A1

  公开（公告）日：2018-06-28

  A corrosion-resistant coating composition comprising at least 0.1 % of the particles of bi-axially oriented metalized polymer film along with paint and other additives; the film should not be soluble in the solvent or dispersion medium of the paint. A substrate coated with the corrosion-resistant composition according to the invention, said substrate has improved corrosion resistance of at least 500 hours by salt spray test (ASTMB 117). A process for manufacturing the corrosion-resistant coating composition of the invention is also disclosed herein.
• New aspects in the synthesis of mono- and dialkylfurans
  作者：Inge Bock、Hans Bornowski、Andreas Ranft、Heinz Theis

  DOI：10.1016/s0040-4020(01)86685-0

  日期：1990.1

  3-substituted furan systems can be obtained by alkylation of 3-lithium furans with various electrophiles in the presence of hexamethylphosphoric acid triamide in good yields. The 2- or 5-position of 3-methyl furan is blocked with high regioselectivity by silylation. After metalation and alkylation of the remaining free α-position and subsequent desilylation the 2,3- and 2,4-disubstituted furans are

  在六甲基磷酸三酰胺存在下，通过将3-锂呋喃与各种亲电试剂进行烷基化反应，可以得到3-取代的呋喃系统。3-甲基呋喃的2-或5-位被甲硅烷基化以高区域选择性封闭。在将剩余的游离α-位置金属化和烷基化并随后进行甲硅烷基化之后，得到2,3-和2,4-二取代的呋喃。这些方法用于合成天然存在的化合物乌索尔醇化物（）和longifolin（）。