2-heneicosyn-1-ol | 355011-66-4

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: 2-heneicosyn-1-ol
• 英文别名: heneicos-2-yn-1-ol；henicos-2-yn-1-ol；Heneicos-2-in-1-ol
• CAS: 355011-66-4
• 化学式: C₂₁H₄₀O
• 分子量: 308.548
• InChiKey: QKQFHPTZSHNSMZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  9.3
• 重原子数：
  22
• 可旋转键数：
  16
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.9
• 拓扑面积：
  20.2
• 氢给体数：
  1
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  2-heneicosyn-1-ol 在 吡啶 、 lithium aluminium tetrahydride 、 乙醚 、 三溴化磷 作用下， 生成 2-heneicosyn
  参考文献：
  名称：

  The Propargylic Rearrangement.¹ V. 1-Bromoheneicosyne-2 and its Reaction with Lithium Aluminum Hydride

  摘要：

  DOI：

  10.1021/ja01115a526
• 作为产物：
  描述：

  在 4-甲基苯磺酸吡啶 作用下， 以 甲醇 为溶剂， 反应 12.0h， 以0.86 g的产率得到2-heneicosyn-1-ol
  参考文献：
  名称：

  Synthesis of novel symmetrical, single-chain, diacetylene-modified bolaamphiphiles with different alkyl chain lengths

  摘要：

  General syntheses of novel symmetrical, single-chain, diacetylene-modified bolaphospholipids have been carried out in five steps. For the omega-alkynols, which have an important role as key intermediates, three different synthetic approaches were comprehensively investigated. For the final synthesis it is suggested that (1) alkylation of lithium (trimethylsilyl)acetylide with tetrahydropyranyl-protected omega-bromoalcohols, followed by (2) cleavage of the trimethylsilyl moiety and the tetrahydropyranyl protecting group, and (3) copper(II)-catalyzed Eglinton coupling is the best strategy for obtaining diacetylene-modified alkane-1,omega-diols, because higher yields were obtained while avoiding the formation of by-products. Moreover, conversion of the diols into bipolar phospholipids was achieved by bis-phosphorylation with beta-bromoethylphosphoric acid dichloride and subsequent quaternization with trimethylamine or dimethylamine. Finally, spectral data are presented for novel single-chain, diacetylene-modified bolaphospholipids with promising potential as starting molecules in the formation of polymerizable and, thus, thermostable nanofibers.

  DOI：

  10.1007/s00706-010-0255-y

文献信息

• Enantioselective Rhodium-Catalyzed Atom-Economical Macrolactonization
  作者：Stephanie Ganss、Bernhard Breit

  DOI：10.1002/anie.201604301

  日期：2016.8.8

  coupling of ω‐allenyl‐substituted carboxylic acids. The use of a modified diop ligand, chiral DTBM‐diop, led to high enantioselectivity (up to 93 % ee). The reaction tolerated a large variety of functionalities, including α,β‐unsaturated carboxylic acids and depsipeptides, and provided the desired macrocycles with very high enantio‐ and diastereoselectivity.

  描述了形成大内酯的高度吸引人的途径，大内酯形成多种多样的天然化合物的环状支架。尽管已经探索了许多针对该结构基序的化学方法，但是环化的不对称变体是前所未有的。在这里，我们通过ω-烯基取代的羧酸的分子内原子-经济铑催化的偶合来呈现对映选择性大内酯化作用。使用改良的二重配体，手性DTBM二联体，可实现高对映选择性（高达93％  ee）。该反应可耐受多种功能，包括α，β-不饱和羧酸和二肽，并提供所需的具有高对映体和非对映体选择性的大环。
• Catalytic Asymmetric Synthesis of Macrocyclic (<i>E</i>)-Allylic Alcohols from ω-Alkynals via Intramolecular 1-Alkenylzinc/Aldehyde Additions
  作者：Wolfgang Oppolzer、Rumen N. Radinov、Emad El-Sayed

  DOI：10.1021/jo000463n

  日期：2001.7.1

  The omega-alkynals yielded macrocyclic (S)-allylic alcohols in a one-pot reaction sequence involving alkyne monohydroboration, boron to zinc transmetalation, and ((+)-DAIB)-catalyzed enantioselective intramolecular ring closure to the aldehyde function. A general study of this macrocyclization methodology is presented with respect to ligand type, size, and nature of the formed rings.

  ω-炔烃在一锅反应序列中生成大环（S）-烯丙基醇，涉及炔烃单氢硼化，硼到锌的金属转移和（（+）-DAIB）催化的对醛官能团的对映选择性分子内闭环。有关配体类型，大小和形成环的性质，对这种大环化方法进行了一般研究。
• Extensive Isomerization of Alkenes Using a Bifunctional Catalyst:  An Alkene Zipper
  作者：Douglas B. Grotjahn、Casey R. Larsen、Jeffery L. Gustafson、Reji Nair、Abhinandini Sharma

  DOI：10.1021/ja073457i

  日期：2007.8.1

  Catalyzed movement of alkene double bonds up to 30 positions has been accomplished using a catalyst featuring a cationic CpRu fragment and bifunctional imidazolylphosphine. The basic nitrogen of the latter is thought to deprotonate coordinated alkene intermediates reversibly, facilitating isomerization between terminal and (E)-alkenes and accelerating conversions by factors of up to 1 x 10(4).