(E)-3-methyl-5-phenyl-4-penten-1-ol | 172295-01-1

• 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: (E)-3-methyl-5-phenyl-4-penten-1-ol
• 英文别名: 3-methyl-5-phenyl-4-pentenol；3-methyl-5-phenyl-cis-4-penten-1-ol；(E)-3-methyl-5-phenylpent-4-en-1-ol
• CAS: 172295-01-1
• 化学式: C₁₂H₁₆O
• 分子量: 176.258
• InChiKey: KPKLDTSJKNFABZ-BQYQJAHWSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 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：

  (E)-3-methyl-5-phenyl-4-penten-1-ol 在 lithium aluminium tetrahydride 、 正丁基锂 、 草酰氯 、 叔丁基锂 、 二甲基亚砜 、 三乙胺 、 三苯基膦 、 锌 作用下， 以 四氢呋喃 、 正己烷 、 二氯甲烷 、 xylene 、 正戊烷 为溶剂， 反应 14.0h， 生成 [(1E,3RS,5E,7SR)-3,7-dimethyldeca-1,5-dien-9-yn-1-yl]benzene
  参考文献：
  名称：

  1,2-二氧戊环-3-乙酸的不对称合成：铂酸A的合成和构型分配

  摘要：

  据报道，首次不对称合成1，2-二氧戊环-3-乙酸。主要特征包括通过过氧化氢对映体富集的氧杂环丁烷的立体选择性开放，将所得的4-氢过氧-2-链烷醇转化为3-烷氧基-1,2-二氧戊环以及路易斯酸介导的后者与硫酯硅烷基乙烯酮缩醛的同源性。该方法以未命名的天然产物3,5-二甲基-5-十六烷基-1,2-二氧戊环-3-乙酸（1a）为模型，并且优化的策略被应用于合成酚酸A的四种立体异构体（2），允许对该不完全表征的天然产物进行构型分配。

  DOI：

  10.1021/jo0522254
• 作为产物：
  描述：

  ethyl (4E)-3-methyl-5-phenylpent-4-enoate 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 生成 (E)-3-methyl-5-phenyl-4-penten-1-ol
  参考文献：
  名称：

  1,2-二氧戊环-3-乙酸的不对称合成：铂酸A的合成和构型分配

  摘要：

  据报道，首次不对称合成1，2-二氧戊环-3-乙酸。主要特征包括通过过氧化氢对映体富集的氧杂环丁烷的立体选择性开放，将所得的4-氢过氧-2-链烷醇转化为3-烷氧基-1,2-二氧戊环以及路易斯酸介导的后者与硫酯硅烷基乙烯酮缩醛的同源性。该方法以未命名的天然产物3,5-二甲基-5-十六烷基-1,2-二氧戊环-3-乙酸（1a）为模型，并且优化的策略被应用于合成酚酸A的四种立体异构体（2），允许对该不完全表征的天然产物进行构型分配。

  DOI：

  10.1021/jo0522254

文献信息

• Aluminium Triflate Catalysed Cyclisation of Unsaturated Alcohols: Novel Synthesis of Rose Oxide and Analogues
  作者：Lydie Coulombel、Michel Weïwer、Elisabet Duñach

  DOI：10.1002/ejoc.200900841

  日期：2009.11

  Aluminium trifluoromethanesulfonate was used as an efficient catalyst for the cycloisomerisation of several unsaturated alcohols into cyclic ethers such as rose oxide and some of its ether analogues. (© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)

  三氟甲磺酸铝被用作将几种不饱和醇环异构化成环醚（如玫瑰氧化物及其一些醚类似物）的有效催化剂。(© Wiley-VCH Verlag GmbH & Co. KGaA, 69451 Weinheim, Germany, 2009)
• Stereospecific Photoredox‐Catalyzed Vinylations to Function­alized Alkenes and C‐Glycosides
  作者：Kumar Bhaskar Pal、Ester Maria Di Tommaso、A. Ken Inge、Berit Olofsson

  DOI：10.1002/anie.202301368

  日期：——

  photo-catalyzed, transition-metal-free C−C cross-coupling reaction has been developed with 4-alkyl-dihydropyridines (DHPs) and vinylbenziodoxol(on)es (VBX, VBO) to synthesize di- and trisubstituted alkenes with complete E : Z selectivity. A diastereoselective C-vinylation of glycosides was also developed. Preliminary mechanistic studies indicate a concerted radical coupling pathway.

  用 4-烷基二氢吡啶 (DHPs) 和乙烯基苯并氧醇 (on)es (VBX, VBO) 开发了一种方便的光催化、无过渡金属的 C−C 交叉偶联反应，以合成具有完整的二和三取代烯烃E : Z选择性。还开发了糖苷的非对映选择性C-乙烯基化。初步的机理研究表明协调一致的自由基偶联途径。
• Cis-configurational unsaturated ester, process for producing the same, and fragrance composition containing the same
  申请人：Kuraray Co., Ltd.

  公开号：EP0950652A1

  公开（公告）日：1999-10-20

  The present invention provides a cis-configurational unsaturated ester represented by the formula (1)    (where R is a methyl group or a phenyl group, and n is 1 or 2) and also provides a fragrance composition containing the cis-configurational unsaturated ester in an effective amount. The cis-configurational unsaturated ester represented by the formula (1) can be produced by reacting a cyclic vinyl ether represented by the formula (2a)    (where n is defined as above) with a Grignard reagent represented by the formula (3a)         RMgX     (3a) (where R is defined as above, and X is a chlorine atom, a bromine atom or an iodine atom) in the presence of a triarylphosphine and not more than 0.05 mol of a nickel compound per one mole of the cyclic vinyl ether represented by the formula (2a) to give a cis-configurational unsaturated alcohol represented by the formula (4a)    (where n and R are defined as above); and subjecting this cis-configurational unsaturated alcohol to acylation with acetic acid or a derivative thereof to give the cis-configurational unsaturated esters represented by the formula (1).

  本发明提供了一种顺式构型不饱和酯，由式（1）表示 (其中 R 为甲基或苯基，n 为 1 或 2）。 并提供了一种含有有效量顺式结构不饱和酯的香料组合物。由式（1）代表的顺式构型不饱和酯可通过以下方法制得 使式（2a）代表的环乙烯基醚反应 (其中 n 的定义同上）与式 (3a) 所代表的格氏试剂反应制得 RMgX (3a) (其中 R 的定义同上，X 为氯原子、溴原子或碘原子） 在三芳基膦和每 1 摩尔式（2a）所代表的环乙烯基醚中含有不超过 0.05 摩尔镍化合物的情况下，生成式（4a）所代表的顺式构型不饱和醇 (其中 n 和 R 的定义同上）；以及 将顺式构型不饱和醇与乙酸或其衍生物进行酰化，得到式（1）代表的顺式构型不饱和酯。
• Regiochemical and stereochemical studies on halocyclization reactions of unsaturated sulfides
  作者：Xiao-Feng Ren、Edward Turos、Charles H. Lake、Melvyn Rowen Churchill

  DOI：10.1021/jo00125a038

  日期：1995.10

  The regiochemistry and stereochemistry for the halocyclization reactions of unsaturated benzyl sulfides have been examined as a function of tether length, type of unsaturation (carbon-carbon double bond versus carbon-carbon triple bond), substituents, and halogenating agent. Alkenyl sulfides were found to react with iodine or bromine at room temperature to give five-membered ring cycloadducts exclusively over those having four-membered rings, while for larger systems, six-membered ring products are formed preferentially over their five-membered ring isomers and exclusively over the seven-membered ring adducts. The endo- versus exo-regioselectivity of these alkenyl sulfide ring closures most likely reflects the difference in thermodynamic stabilities of the beta-halo sulfide cycloadducts, which are able to equilibrate via a common episulfonium intermediate. The efficiency of the cyclization process markedly drops off for these alkenyl sulfides as the tether length increases beyond four intervening carbon centers. Thus, while the halogenations of 3-butenyl sulfides and 4-pentenyl sulfides give high yields of cycloadducts, those of 5-hexenyl sulfides afford only small amounts of cyclized products and large quantities of acyclic dibromides. Conversely the reactions of acetylenic sulfides with iodine give uniformly high yields and regiochemical control regardless of the tether length. Thus, 3-butynyl and 4-pentynyl sulfides cyclize cleanly to the five-membered ring while 5-hexynyl sulfides give exclusively the six-membered ring, The products arising from these alkynyl sulfide ring closures are believed to be formed under kinetic control. The methodology has been applied to the synthesis of unusual bicyclic beta-lactams related to the penicillin family of antibiotics.
• Substituent Effects on the Stereochemical Course of Electrophile-initiated Tetrahydropyran-forming Reactions: A Possible Stereoelectronic Effect
  作者：David J. Hart、Suzanne Patterson、Alain Zakarian

  DOI：10.3987/com-99-s119

  日期：——