5-chloro-2-phenylpentanoic acid | 152667-62-4

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: 5-chloro-2-phenylpentanoic acid
• CAS: 152667-62-4
• 化学式: C₁₁H₁₃ClO₂
• 分子量: 212.676
• InChiKey: FVQYJTMCVFKXRD-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.36
• 拓扑面积：
  37.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  5-chloro-2-phenylpentanoic acid 在 草酰氯 作用下， 以 苯 为溶剂， 生成 (3-Chloropropyl)phenylacetyl chloride
  参考文献：
  名称：

  Intramolecular nucleophilic acyl substitution reactions of halo-substituted esters and lactones. New applications of organosamarium reagents

  摘要：

  Intramolecular nucleophilic acyl substitution reactions involving a broad range of halo substituted carboxylic acid derivatives have been accomplished in excellent yield employing samarium(II) iodide as the reductive coupling agent. Although particular substrates cyclized most effectively in THF in the presence of tripiperidinophosphine oxide, carboxylic acid esters, the focus of this report, cyclize equally well without such an additive in the presence of a catalytic quantity of iron(III) complexes. Thus a comprehensive series of halo substituted esters were cyclized in excellent yield to the corresponding 4-, 5-, and 6-membered carbocycles. The reaction is extremely mild and selective as demonstrated by experiments wherein alkyl chlorides, acetals, and olefins remain completely intact under the reaction conditions. In addition to introducing a convenient procedure for preparing stereodefined spirocyclic systems, a new ring expansion sequence has been developed that appears extremely general for the preparation of various ring systems.

  DOI：

  10.1021/jo00077a053
• 作为产物：
  描述：

  苯乙酸 、 1-溴-3-氯丙烷 在 正丁基锂 、 二异丙胺 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 1.0h， 生成 5-chloro-2-phenylpentanoic acid
  参考文献：
  名称：

  AC=O⋅⋅⋅Isothiouronium 相互作用决定了叔杂环醇酰基化动力学拆分中的对映体区别

  摘要：

  实验和计算研究的结合已经确定 C=O⋅⋅⋅isothiouronium 相互作用是在立体叔甲醇中心承载多达三个潜在识别基序的叔杂环醇的动力学分辨率中有效对映体区分的关键。这种区分在异硫脲催化的叔杂环醇的酰基化动力学拆分中得到了利用（38 个例子，s 因子高达 >200）。该反应在低催化剂负载量（通常为 1 mol%）下进行，异丁酸或乙酸酐作为酰化剂在温和条件下进行。

  DOI：

  10.1002/anie.201712456

文献信息

• HETEROARYL SUBSTITUTED PIPERIDINES
  申请人：Baumann Karlheinz

  公开号：US20110201605A1

  公开（公告）日：2011-08-18

  The invention relates to compounds of formula where hetaryl I, hetaryl II, R 1 , R 2 , R 3 , R 4 , m, n, and o are as defined in the specification or to pharmaceutically active acid addition salts thereof. The compounds of formula I are modulators for amyloid beta and thus may be useful for the treatment or prevention of a disease associated with the deposition of β-amyloid in the brain, in particular Alzheimer's disease, and other diseases such as cerebral amyloid angiopathy, hereditary cerebral hemorrhage with amyloidosis, Dutch-type (HCHWA-D), multi-infarct dementia, dementia pugilistica and Down syndrome.

  该发明涉及以下式的化合物 其中hetaryl I，hetaryl II， R 1 ， R 2 ， R 3 ，R 4 ，m，n和o如规范中所定义 或其药用活性酸盐。式I的化合物是淀粉样蛋白β的调节剂，因此可能对与大脑中β-淀粉样蛋白沉积相关的疾病的治疗或预防有用，特别是阿尔茨海默病，以及其他疾病，如脑淀粉样血管病，遗传性脑出血伴淀粉样变性，荷兰型（HCHWA-D），多梗塞性痴呆，拳击性痴呆和唐氏综合征。
• Photoinduced Copper‐Catalyzed Asymmetric Decarboxylative Alkynylation with Terminal Alkynes
  作者：Hai‐Dong Xia、Zhong‐Liang Li、Qiang‐Shuai Gu、Xiao‐Yang Dong、Jia‐Heng Fang、Xuan‐Yi Du、Li‐Lei Wang、Xin‐Yuan Liu

  DOI：10.1002/anie.202006317

  日期：2020.9.21

  photoinduced copper‐catalyzed asymmetric radical decarboxylative alkynylation of bench‐stable N‐hydroxyphthalimide(NHP)‐type esters of racemic alkyl carboxylic acids with terminal alkynes, which provides a flexible platform for the construction of chiral C(sp3)−C(sp) bonds. Critical to the success of this process are not only the use of the copper catalyst as a dual photo‐ and cross‐coupling catalyst but

  我们描述了外消旋烷基羧酸的N-羟基邻苯二甲酰亚胺（NHP）型酯与末端炔烃的光诱导铜催化不对称自由基脱羧烷基化反应，为手性C的构建提供了灵活的平台（sp 3）-C（sp）键。该方法成功的关键不仅在于将铜催化剂用作光和交联的双重催化剂，而且还需要调整NHP型酯以分别抑制烷基和末端炔烃的均质二聚化。由于使用了稳定且易于获得的NHP型酯，与使用烷基卤化物对应物的反应相比，该反应的底物范围更广，涵盖了（杂）苄基，烯丙基和氨基羰基取代的羧酸衍生物，并且（杂芳基和烷基以及甲硅烷基炔烃，因此为先前报道的方法提供了至关重要的补充方法。
• Enantioselective Construction of Quaternary Carbon Stereocenter via Palladium-Catalyzed Asymmetric Allylic Alkylation of Lactones
  作者：Ping Fang、Xue-Long Hou、Xiao-Hui Li、Shi-Li Wan、Di Chen、Qing Liu、Chang-Hua Ding

  DOI：10.1055/s-0035-1561574

  日期：——

  developed. Enantioselective construction of quaternary carbon centers by utilizing Pd-catalyzed asymmetric allylic alkylation proved its feasibility. An efficient and practical method for the synthesis of α,α-disubstituted six-membered lactones was developed. Enantioselective construction of quaternary carbon centers by utilizing Pd-catalyzed asymmetric allylic alkylation proved its feasibility.

  摘要 开发了一种高效实用的合成α，α-二取代六元内酯的方法。利用Pd催化的不对称烯丙基烷基化反应对季碳中心进行对映选择性构建证明了其可行性。 开发了一种高效实用的合成α，α-二取代六元内酯的方法。利用Pd催化的不对称烯丙基烷基化反应对季碳中心进行对映选择性构建证明了其可行性。
• IMIDAZO-OXADIAZOLE AND IMIDAZO-THIADIAZOLE DERIVATIVES
  申请人：Ares Trading S.A.

  公开号：US20150175628A1

  公开（公告）日：2015-06-25

  The present invention provides compounds of Formula (I) used as Amyloid beta lowering agent for the treatment of neurodegenerative diseases.

  本发明提供了一种公式（I）的化合物，用作淀粉样β降低剂，用于治疗神经退行性疾病。
• Bicyclic Compounds for the Reduction of Beta-Amyloid Production
  申请人：Marcin Lawrence R.

  公开号：US20110015175A1

  公开（公告）日：2011-01-20

  The present disclosure provides a series of compounds of the formula (I) which reduce β-amyloid peptide (β-AP) production and are useful in the treatment of Alzheimer's Disease and other conditions affected by β-amyloid peptide (β-AP) production.

  本公开提供了一系列化合物的公式（I），它们能够减少β-淀粉样肽（β-AP）的产生，并且在治疗阿尔茨海默病和其他受β-淀粉样肽（β-AP）产生影响的疾病方面非常有用。