5-methyl-hex-2-ynoic acid ethyl ester | 65236-42-2

• 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: 5-methyl-hex-2-ynoic acid ethyl ester
• 英文别名: Ethyl 5-methyl-2-hexynoate；Ethyl 5-methylhex-2-ynoate
• CAS: 65236-42-2
• 化学式: C₉H₁₄O₂
• 分子量: 154.209
• InChiKey: ICNQKMFHGOHUCM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  11
• 可旋转键数：
  3
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.67
• 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：

  5-methyl-hex-2-ynoic acid ethyl ester 在 Pd-BaSO₄ 氢气 、 三氟乙酸 作用下， 以 四氢呋喃 、 吡啶 、 二氯甲烷 、 甲苯 为溶剂， 反应 3.25h， 生成 (cis)-1-benzyl-4-isobutyl-pyrrolidine-3-carboxylic acid ethyl ester
  参考文献：
  名称：

  Synthesis of 4-alkyl-pyrrolidine-3-carboxylic acid stereoisomers

  摘要：

  All four possible stereoisomers of the 3-carboxyl-4-isopropyl-pyrrolidine (4) were prepared and their stereochemistry was assigned unambiguously. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(01)00549-x
• 作为产物：
  描述：

  ethyl 5-methyl-3-oxo-2-triphenylphosphoranylidenehexanoate 260.0~280.0 ℃ 、53.33 Pa 条件下， 反应 3.5h， 以2.3139 g的产率得到5-methyl-hex-2-ynoic acid ethyl ester
  参考文献：
  名称：

  β,β-二取代 α,β-不饱和酰胺的去质子化 - 机理和立体化学结果

  摘要：

  详细研究了二烷基酰胺锂诱导 β,β-二取代 α,β-不饱和酰胺去质子化。γ-Z 碳原子上取代基的优先 γ-Z-去质子化和立体化学结果在循环八元过渡态方面被合理化，这得到了 DFT 计算的支持。亚环己基甲酰胺的类似去质子化揭示了对八元环状过渡态的偏好与环上现有取代基的影响和扭船过渡态的干预之间的微妙平衡。 关键词：二烯醇，酰胺，去质子化机制，过渡状态、烯醇化、区域选择性、立体选择性。

  DOI：

  10.1139/v06-112

文献信息

• Selective One-Pot Synthesis of Allenyl and Alkynyl Esters from β-Ketoesters
  作者：Pradip Maity、Salvatore D. Lepore

  DOI：10.1021/jo801563x

  日期：2009.1.2

  β-ketoesters to generate conjugated and deconjugated alkynyl esters and conjugated allenyl esters. This sequential one-pot method involves the formation of a vinyl triflate monoanion intermediate that leads to the selective formation of alkynes or allenes depending on additives and conditions used. Product outcomes appear to be a function of unique mono- and dianion mechanisms which are described.

  描述了一种方便的方法，用于 β-酮酯脱水以生成共轭和去共轭炔基酯和共轭丙二烯基酯。这种连续的一锅法涉及形成乙烯基三氟甲磺酸酯单阴离子中间体，根据所使用的添加剂和条件，该中间体导致炔烃或丙二烯的选择性形成。产品结果似乎是所描述的独特的单价和双价阴离子机制的函数。
• SUBSTITUTED DIHYDRO AND TETRAHYDRO OXAZOLOPYRIMIDINONES, PREPARATION AND USE THEREOF
  申请人：CAO Bin

  公开号：US20100075994A1

  公开（公告）日：2010-03-25

  The present invention relates to a series of substituted dihydro and tetrahydro oxazolopyrimidinones, specifically, to a series of 2-substituted-2,3-dihydro-oxazolo[3,2-a]pyrimidin-7-ones and 2-substituted-2,3,5,6-tetra-hydro-oxazolo[3,2-a]pyrimidin-7-ones of formula (I): Wherein p, n, X, Y, R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 and R 8 are as defined herein. This invention also relates to methods of making these compounds including novel intermediates. The compounds of this invention are modulators of metabotropic glutamate receptors (mGluR), particularly, mGluR2 receptor. Therefore, the compounds of this invention are useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of central nervous system disorders (CNS), including but not limited to acute and chronic neurodegenerative conditions, psychoses, convulsions, anxiety, depression, migraine, pain, sleep disorders and emesis.

  本发明涉及一系列取代二氢和四氢噁唑嘧啶酮，具体地说，涉及一系列式(I)的2-取代-2,3-二氢-噁唑并[3,2-a]嘧啶-7-酮和2-取代-2,3,5,6-四氢-噁唑并[3,2-a]嘧啶-7-酮： 其中p、n、X、Y、R1、R2、R3、R4、R5、R6、R7和R8如本文所定义。本发明还涉及制备这些化合物的方法，包括新颖的中间体。本发明的化合物是代谢型谷氨酸受体（mGluR）的调节剂，特别是mGluR2受体。因此，本发明的化合物在药物制剂中具有用途，特别是在治疗和/或预防各种中枢神经系统疾病（CNS）方面，包括但不限于急性和慢性神经退行性疾病、精神病、癫痫、焦虑、抑郁、偏头痛、疼痛、睡眠障碍和呕吐。
• Branched alkyl pyrrolidine-3-carboxylic acids
  申请人：Warner-Lambert Company

  公开号：US06245801B1

  公开（公告）日：2001-06-12

  Branched alkyl pyrrolidines of formula (I) are disclosed and are useful as agents in the treatment of epilepsy, faintness attacks, hypokinesia, cranial disorders, neurodegenerative disorders, depression, anxiety, panic, pain, and neuropatnological disorders. Processes for the preparation and intermediates useful in the preparation are also disclosed.

  公开了式(I)的分支烷基吡咯烷，并且它们在治疗癫痫、晕厥发作、低动力症、颅内疾病、神经退行性疾病、抑郁症、焦虑症、惊恐症、疼痛和神经病理学疾病方面有用。还公开了制备过程和制备中有用的中间体。
• Substituted dihydro and tetrahydro oxazolopyrimidinones, preparation and use thereof
  申请人：Cao Bin

  公开号：US08642603B2

  公开（公告）日：2014-02-04

  The present invention relates to a series of substituted dihydro and tetrahydro oxazolopyrimidinones, specifically, to a series of 2-substituted-2,3-dihydro-oxazolo[3,2-a]pyrimidin-7-ones and 2-substituted-2,3,5,6-tetra-hydro-oxazolo[3,2-a]pyrimidin-7-ones of formula (I): Wherein p, n, X, Y, R1, R2, R3, R4, R5, R6, R7 and R8 are as defined herein. This invention also relates to methods of making these compounds including novel intermediates. The compounds of this invention are modulators of metabotropic glutamate receptors (mGluR), particularly, mGluR2 receptor. Therefore, the compounds of this invention are useful as pharmaceutical agents, especially in the treatment and/or prevention of a variety of central nervous system disorders (CNS), including but not limited to acute and chronic neurodegenerative conditions, psychoses, convulsions, anxiety, depression, migraine, pain, sleep disorders and emesis.

  本发明涉及一系列取代的二氢和四氢噁唑嘧啶酮，具体地说，涉及一系列式(I)的2-取代-2,3-二氢噁唑并[3,2-a]嘧啶-7-酮和2-取代-2,3,5,6-四氢噁唑并[3,2-a]嘧啶-7-酮，其中p，n，X，Y，R1，R2，R3，R4，R5，R6，R7和R8如本文所定义。本发明还涉及制备这些化合物的方法，包括新的中间体。本发明的化合物是代谢型谷氨酸受体（mGluR）的调节剂，特别是mGluR2受体。因此，本发明的化合物在制药领域中有用，特别是在治疗和/或预防各种中枢神经系统疾病（CNS）方面，包括但不限于急性和慢性神经退行性疾病、精神病、惊厥、焦虑、抑郁、偏头痛、疼痛、睡眠障碍和呕吐。
• A Convenient and General Synthesis of 2-Alkynoates or 1-Alkynyl Aryl Ketones via the Reaction of Iodine with the Ate-complexes Obtained from Lithium Ethoxycarbonyl-or Aroylacetylenide and Trialkylboranes
  作者：Kinji YAMADA、Norio MIYAURA、Mitsuomi ITOH、Akira SUZUKI

  DOI：10.1055/s-1977-24529

  日期：——