4,8-二甲基壬-3,7-二烯-2-醇 | 67845-50-5

• 物质功能分类: 医药中间体 - 原料药中间体
• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 中文名称: 4,8-二甲基壬-3,7-二烯-2-醇
• 英文名称: 4,8-dimethylnona-3,7-dien-2-ol
• 英文别名: 4,8-dimethyl-3,7-nonadien-2-ol；8-hydroxy-2,6-dimethyl-nona-2,6-diene；3,7-Nonadien-2-ol, 4,8-dimethyl-
• CAS: 67845-50-5
• 化学式: C₁₁H₂₀O
• 分子量: 168.279
• InChiKey: NYPOJSCNHYUZRG-UHFFFAOYSA-N

物化性质

• 沸点：
  105-106 °C(Press: 18 Torr)
• 密度：
  0.863±0.06 g/cm3(Predicted)
• LogP：
  3.63

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  12
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.64
• 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：

  4,8-二甲基壬-3,7-二烯-2-醇 在 叔丁基过氧化氢 、 4-二甲氨基吡啶 、 copper acetylacetonate 、 titanium tetra-n-propoxide 、 二甲基硫 、 臭氧 、 间氯过氧苯甲酸 、 N,N'-二环己基碳二亚胺 作用下， 以 二氯甲烷 为溶剂， 反应 2.5h， 生成 (R)-(-)-3,7-dimethyl-3-(4-methoxyphenyl)octa-1,6-diene
  参考文献：
  名称：

  Synthesis of (S)- and (R)-Sporochnol by Using the Allylic Substitution of the Secondary Allylic Picolinate

  摘要：

  The allylic substitution of secondary allylic picolinates and copper reagents for the construction of a quaternary carbon was applied to synthesis of sporochnol. The enantiomerically enriched allylic picolinate (R)-5 was synthesized through the asymmetric hydrogen transfer of acetylene ketone 11 and the Pd-catalyzed methylation of the iodoallylic alcohol 16a. The key allylic substitution of the allylic picolinate (R)-5 with 4-MeOC6H4MgBr/Cu(acac)(2) (2:1) proceeded with 95% chirality transfer with 98% regioselectivity to afford anti S(N)2' product 6 in 89% yield, which was converted to the methyl ether of unnatural (R)-sporochnol. Similarly, the methyl ether of (S)-sporochnol (the natural form) was synthesized.

  DOI：

  10.3987/com-15-s(t)11
• 作为产物：
  描述：

  柑橘酮 在 dichloro(pentamethylcyclopentadienyl)rhodium (III) dimer 、 C₂₁H₂₈N₂O₂S 、 sodium isopropylate 、 lithium chloride 作用下， 以 异丙醇 为溶剂， 反应 2.0h， 生成 4,8-二甲基壬-3,7-二烯-2-醇
  参考文献：
  名称：

  Fine-tuning catalytic activity and selectivity—[Rh(amino acid thioamide)] complexes for efficient ketone reduction

  摘要：

  Amino acid-derived thioamides are prepared and evaluated as ligands in the rhodium-catalyzed asymmetric transfer hydrogenation of ketones in 2-propanol. It is found that increasing the steric bulk at the C-terminus of the ligand had a positive impact on both activity and selectivity in the reduction reaction. In order to find the optimum catalyst, a study is performed on a series of thioamide ligands having substituents of varying size. (C) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2009.08.116

文献信息

• The Cinchona Primary Amine-Catalyzed Asymmetric Epoxidation and Hydroperoxidation of α,β-Unsaturated Carbonyl Compounds with Hydrogen Peroxide
  作者：Olga Lifchits、Manuel Mahlau、Corinna M. Reisinger、Anna Lee、Christophe Farès、Iakov Polyak、Gopinadhanpillai Gopakumar、Walter Thiel、Benjamin List

  DOI：10.1021/ja402058v

  日期：2013.5.1

  Using cinchona alkaloid-derived primary amines as catalysts and aqueous hydrogen peroxide as the oxidant, we have developed highly enantioselective Weitz-Scheffer-type epoxidation and hydroperoxidation reactions of α,β-unsaturated carbonyl compounds (up to 99.5:0.5 er). In this article, we present our full studies on this family of reactions, employing acyclic enones, 5-15-membered cyclic enones, and

  以金鸡纳生物碱衍生的伯胺为催化剂，过氧化氢水溶液为氧化剂，我们开发了α,β-不饱和羰基化合物（高达99.5:0.5 er）的高对映选择性Weitz-Scheffer型环氧化和氢过氧化反应。在本文中，我们展示了我们对这一系列反应的完整研究，使用无环烯酮、5-15 元环状烯酮和 α-支链烯酮作为底物。除了扩大范围外，还介绍了产品的合成应用。我们还报告了催化中间体的详细机理研究、金鸡纳胺催化剂的构效关系以及通过 NMR 光谱研究和 DFT 计算得出的绝对立体选择性的合理化。
• Copper-Catalyzed One-Pot Borylative Aldolisation β-Fluoride Elimination for the Formal Addition of Acrylates to Carbonyl Moieties
  作者：Corentin Rasson、Adrien Stouse、Arnaud Boreux、Virginie Cirriez、Olivier Riant

  DOI：10.1002/chem.201802023

  日期：2018.7.2

  borylation/aldolisation of methyl 2‐fluoroacrylate with carbonyl compounds followed by an elimination to give Morita–Baylis–Hillman (MBH) analogues. The optimal conditions described were shown to be compatible with a wide range of aldehydes and ketones. Unprecedented MBH adducts derived from ketones were efficiently synthesized.

  在本文中，我们报道了2-氟丙烯酸甲酯与羰基化合物经铜催化的多米诺硼酸化/醛醇缩合，然后消除生成Morita–Baylis–Hillman（MBH）类似物。所描述的最佳条件显示与多种醛和酮相容。有效地合成了前所未有的源自酮的MBH加合物。
• Action des dialkylcuprates de lithium sur les aldéhydes α,β -éthylénioues
  作者：C. Chuit、J.P. Foulon、J.F. Normant

  DOI：10.1016/0040-4020(80)80126-8

  日期：1980.1

  Nearly exclusive 1-4 addition produts obtained by action of lithium dialkylcuprates with α,β ethylenic aldehydes. Non polar solvents and low temperatures favour this reaction .Only α,β-ehylenic aldehydes having a trisubstituted double bond give a relatively important proportation of 1–2 addition product.

  通过二烷基铜锂与α，β乙烯醛的作用获得的几乎唯一的1-4加成产物。非极性溶剂和低温有利于该反应。只有具有三取代双键的α，β-烯醛的比例相对重要，为1-2加成产物。
• Cyclopropanation with Dibromomethane under Grignard and Barbier Conditions
  作者：Fridtjof Schröder、Gerhard Brunner、Laura Eberhard、Jürg Oetiker

  DOI：10.1055/s-0029-1216999

  日期：2009.11

  from α-substituted (homo)allyl alcohols. In tandem reactions, cyclopropyl carbinols are obtained from allyloxylithium or -magnesium intermediates, generated in situ by alkylation of conjugated aldehydes, ketones, and esters as well as from allyl esters and carbonates or vinyloxiranes. [¹] cyclopropanation - Barbier conditions - Grignard addition - alkyllithium addition - dibromomethane

  格氏试剂和二溴甲烷在环境温度下，在乙醚溶剂中有效地环丙酸烯丙基（和某些均烯丙基）镁和锂醇化物。在较高的Barbier条件下，将（均）烯丙基锂醇盐与镁和二溴甲烷直接环丙烷化。反应速率取决于（均）烯丙基醇化物的取代方式和取决于锂的抗衡离子，其效果最佳。从α-取代的（均）烯丙基醇获得良好至优异的顺选择性。在串联反应中，环丙基甲醇是从烯丙氧基锂或镁中间体获得的，该中间体是通过共轭醛，酮和酯的烷基化以及烯丙基酯和碳酸酯或乙烯基氧杂环戊烷而原位生成的。[ ¹] 环丙烷化-Barbier条件-Grignard加成-烷基锂加成-二溴甲烷
• Pd(II)−Hydrotalcite-Catalyzed Oxidation of Alcohols to Aldehydes and Ketones Using Atmospheric Pressure of Air
  作者：Nobuyuki Kakiuchi、Yasunari Maeda、Takahiro Nishimura、Sakae Uemura

  DOI：10.1021/jo010338r

  日期：2001.10.1

  acetate-pyridine complex supported by hydrotalcite) catalyzes the aerobic oxidation in toluene of a variety of primary and secondary alcohols into the corresponding aldehydes and ketones in high yields using atmospheric pressure of air as a sole oxidant under mild conditions. This catalyst is also effective for the oxidation of allylic alcohols, especially such as geraniol and nerol, without any isomerization of an

  异质Pd催化剂Pd（II）-水滑石（由水滑石负载的乙酸钯（II）-吡啶配合物）可在大气压下使用高收率将多种伯醇和仲醇在甲苯中好氧氧化为相应的醛和酮空气在温和条件下作为唯一氧化剂。该催化剂对于烯丙基醇特别是香叶醇和神经醇的烯丙基醇的氧化也是有效的，而烯烃部分没有任何异构化。该催化剂可以容易地由所有市售试剂制备并重复使用多次。

表征谱图