(E)-4-(benzyloxy)but-2-enoic acid | 162551-89-5

• 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: (E)-4-(benzyloxy)but-2-enoic acid
• 英文别名: 4-(Benzyloxy)but-2-enoic acid；(E)-4-phenylmethoxybut-2-enoic acid
• CAS: 162551-89-5
• 化学式: C₁₁H₁₂O₃
• 分子量: 192.214
• InChiKey: OHYGHDAKKDAOBO-QPJJXVBHSA-N

物化性质

• 沸点：
  362.7±30.0 °C(Predicted)
• 密度：
  1.155±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.4
• 重原子数：
  14
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  46.5
• 氢给体数：
  1
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (E)-4-(benzyloxy)but-2-enoic acid 在 三甲基乙酰氯 、 三乙胺 、 lithium chloride 作用下， 以 四氢呋喃 为溶剂， 反应 26.75h， 生成 (2'S,4S,Z)-3-(4'-benzyloxy-2'-methylbut-3'-enoyl)-4-isopropyl-5,5-dimethyloxazolidinone
  参考文献：
  名称：

  ‘Syn-effect’ in the diastereoselective alkylation of 3-[(E)-α,β-unsaturated-γ-substituted]-N-acyloxazolidinones

  摘要：

  Synthetic methods for the formation of alkenes usually produce the E-alkene because it is more stable. However, in isomerization reaction (double bond migration) that takes place in alpha, beta-unsaturated carbonyl compounds, when these carbonyl compounds are exposed to strong bases, furnish Z-alkenes highly stereoselective depending on the gamma-substituent in the alpha, beta-unsaturated carbonyl. This stereo-selectivity can be attributed to the known Syn-effect. The synthetic value of this methodology is the achievement of chiral alcohol bearing an electron rich Z-alkene, as well as substituted, which was accomplished via removal of the oxazolidinone moiety under treatment with NaBH4, THF-H2O. (C) 2015 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2015.05.037
• 作为产物：
  描述：

  顺-4-苄氧基-2-丁烯-1-醇 在 4-二甲氨基吡啶 、 2,2'-联吡啶 、 2,2,6,6-四甲基哌啶氧化物 、 氧气 、 copper(I) bromide 、 sodium chlorite 、 sodium dihydrogenphosphate 、 双氧水 作用下， 以 乙腈 、 水 为溶剂， 反应 11.5h， 以97%的产率得到(E)-4-(benzyloxy)but-2-enoic acid
  参考文献：
  名称：

  烯丙基和苄基醇氧化为醛和羧酸。

  摘要：

  通过将使用O 2作为末端氧化剂的Cu催化的氧化与随后的亚氯酸盐氧化（Lindgren氧化）合并来实现烯丙基和苄醇氧化为相应的羧酸。对该方案进行了优化，以获得无需色谱或结晶的纯净产物。在醛阶段的拦截作用允许Z / E异构化，从而使氧化相对于起始原料的构型立体收敛。

  DOI：

  10.1039/c4cc01305k

文献信息

• NAPHTHYRIDINES AS INHIBITORS OF HPK1
  申请人：Genentech, Inc.

  公开号：US20180282328A1

  公开（公告）日：2018-10-04

  Naphthyridine compounds and their use as inhibitors of HPK1 are described. The compounds are useful in treating HPK1-dependent disorders and enhancing an immune response. Also described are methods of inhibiting HPK1, methods of treating HPK1-dependent disorders, methods for enhancing an immune response, and methods for preparing the naphthyridine compounds.

  萘啶化合物及其作为HPK1抑制剂的用途被描述。这些化合物在治疗HPK1依赖性疾病和增强免疫反应方面很有用。还描述了抑制HPK1的方法、治疗HPK1依赖性疾病的方法、增强免疫反应的方法以及制备萘啶化合物的方法。
• [EN] POLYMYXIN ANALOGS USEFUL AS ANTIBIOTIC POTENTIATORS<br/>[FR] ANALOGUES DE LA POLYMYXINE UTILES EN TANT QUE POTENTIALISATEURS D'ANTIBIOTIQUE
  申请人：SPERO OPCO

  公开号：WO2017189866A1

  公开（公告）日：2017-11-02

  The disclosure provides compounds of the formula (I) or a tautomer thereof, or a pharmaceutically acceptable salt of either of the foregoing. The variables A, R1, and R2 are defined in the disclosure. The disclosure further includes pharmaceutical compositions comprising a compound of formula I together with at least one pharmaceutically acceptable carrier. The disclosure also includes a method of sensitizing bacteria to an antibacterial agent, comprising administering to a patient infected with the bacteria, simultaneously or sequentially, a therapeutically effective amount of the antibacterial agent and a compound of formula (I).

  该披露提供了式(I)的化合物或其互变异构体，或者上述任一化合物的药学上可接受的盐。变量A、R1和R2在披露中有定义。该披露还包括包含式I化合物和至少一种药学上可接受的载体的药物组合物。该披露还包括一种使细菌对抗菌剂产生敏感的方法，包括向感染有该细菌的患者同时或顺序地给予抗菌剂和式(I)化合物的治疗有效量。
• Enantioselective CuH-Catalyzed Hydroacylation Employing Unsaturated Carboxylic Acids as Aldehyde Surrogates
  作者：Yujing Zhou、Jeffrey S. Bandar、Stephen L. Buchwald

  DOI：10.1021/jacs.7b04937

  日期：2017.6.21

  (CuH)-catalyzed coupling of α,β-unsaturated carboxylic acids to aryl alkenes to access chiral α-aryl dialkyl ketones is reported. A variety of substrate substitution patterns, sensitive functional groups, and heterocycles are tolerated in this reaction, which significantly expands the range of accessible products compared with existing hydroacylation methodology. Although mechanistic studies are ongoing, we propose

  报道了直接不对称氢化铜（CuH）催化的α，β-不饱和羧酸与芳基烯烃的偶联，从而获得手性α-芳基二烷基酮。在该反应中可以耐受多种底物取代方式，敏感的官能团和杂环，与现有的加氢酰化方法相比，这大大扩展了可及产品的范围。尽管正在进行机理研究，但我们建议发生CuH催化的不饱和酸甲硅烷基化反应，以访问独特有效的酰基亲电偶联伙伴。
• Chiral Integrated Catalysts Composed of Bifunctional Thiourea and Arylboronic Acid: Asymmetric Aza-Michael Addition of α,β-Unsaturated Carboxylic Acids
  作者：Noboru Hayama、Takumi Azuma、Yusuke Kobayashi、Yoshiji Takemoto

  DOI：10.1248/cpb.c15-00983

  日期：——

  The first intermolecular asymmetric Michael addition of nitrogen-nucleophiles to alpha,beta-unsaturated carboxylic acids was achieved through a new type of arylboronic acid equipped with chiral aminothiourea. The use of BnONH2 as a nucleophile gives a range of enantioenriched beta-(benzyloxy)amino acid derivatives in good yields and with high enantioselectivity (up to 90% yield, 97% enantiomeric excess

  氮亲核试剂向α，β-不饱和羧酸的首次分子间不对称迈克尔加成反应是通过配备手性氨基硫脲的新型芳基硼酸实现的。使用BnONH2作为亲核试剂，可以以高收率和高对映选择性（高达90％的收率，97％的对映体过量（ee））获得​​一系列对映体富集的β-（苄氧基）氨基酸衍生物。将获得的产物有效地转化为旋光性β-氨基酸和1,2-二胺衍生物。
• A Concise Diels−Alder Strategy for the Asymmetric Synthesis of (+)-Albicanol, (+)-Albicanyl Acetate, (+)-Dihydrodrimenin, and (−)-Dihydroisodrimeninol
  作者：Jeff R. Henderson、Masood Parvez、Brian A. Keay

  DOI：10.1021/ol901372m

  日期：2009.8.6

  A short, mild, highly diastereo-, regio-, and stereoselective Diels−Alder strategy has been developed for the asymmetric synthesis of (+)-albicanol, (+)-albicanyl acetate, (+)-dihydrodrimenin, and (−)-dihydroisodrimeninol.

  已开发出一种短，温和，高度非对映体，区域和立体选择性的Diels-Alder策略，用于不对称合成（+）-白三醇，（+）-乙酸白二烷基酯，（+）-二氢drimenin和（-）-二氢异水烯醇。