3-(4-methoxyphenyl)-2-butenal | 103987-50-4

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 肉桂醛
• 英文名称: 3-(4-methoxyphenyl)-2-butenal
• 英文别名: 3-(4-Methoxyphenyl)but-2-enal
• CAS: 103987-50-4
• 化学式: C₁₁H₁₂O₂
• 分子量: 176.215
• InChiKey: JRWPBBXPNLJFMJ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.4
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.18
• 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：

  3-(4-methoxyphenyl)-2-butenal 在 二氢吡啶 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 48.0h， 以76%的产率得到(R)-3-(4-methoxyphenyl)butanal
  参考文献：
  名称：

  Asymmetric transfer hydrogenation in aqueous media catalyzed by resin-supported peptide having a polyleucine tether

  摘要：

  A resin-supported N-terminal prolyl peptide having a beta-turn motif and a polyleucine tether has been developed for the organocatalytic asymmetric transfer hydrogenation under aqueous conditions. Polyleucine accelerated the reaction in a highly enantioselective manner by providing a hydrophobic microenvironment around the prolyl residue. The investigation of catalyst structures indicates that the L-form of polyleucine is essential for both reaction efficiency and enantioselectivity. (c) 2009 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetasy.2009.02.036
• 作为产物：
  描述：

  (E)-3-(4-甲氧基-苯基)-2-丁烯酸乙酯 在 二异丁基氢化铝 、 戴斯-马丁氧化剂 作用下， 以 二氯甲烷 为溶剂， 反应 3.0h， 生成 3-(4-methoxyphenyl)-2-butenal
  参考文献：
  名称：

  NHC催化的不对称α-区域选择性[4 + 2]环用于构建α-亚烷基-δ-内酯。

  摘要：

  描述了前所未有的NHC催化的α-溴烯醛与二氧吡咯烷环的[4 + 2]环化反应。该方案具有广泛的底物范围，并允许以良好的对映选择性，以良好的高收率快速组装α-亚烷基-δ-内酯。值得注意的是，该过程包括尚未报道的重氮二唑鎓中间体的α-区域选择性活化。

  DOI：

  10.1021/acs.orglett.0c02573

文献信息

• Oxidative γ-Addition of Enals to Trifluoromethyl Ketones: Enantioselectivity Control via Lewis Acid/N-Heterocyclic Carbene Cooperative Catalysis
  作者：Junming Mo、Xingkuan Chen、Yonggui Robin Chi

  DOI：10.1021/ja303618z

  日期：2012.5.30

  An oxidative γ-functionalization of enals under N-heterocyclic carbene (NHC) catalysis to give unsaturated δ-lactones is disclosed. Enantioselectivity control involving the relatively remote enal γ-carbon was achieved via Lewis acid [Sc(OTf)(3) or combined Sc(OTf)(3)/Mg(OTf)(2)] and NHC cooperative catalysis.

  公开了在 N-杂环卡宾 (NHC) 催化下 enals 的氧化 γ-官能化以产生不饱和 δ-内酯。通过路易斯酸 [Sc(OTf)(3) 或组合 Sc(OTf)(3)/Mg(OTf)(2)] 和 NHC 协同催化，实现了涉及相对偏远的 enal γ-碳的对映选择性控制。
• Green and Rapid Access to Benzocoumarins<i>via</i>Direct Benzene Construction through Base-Mediated Formal [4+2] Reaction and Air Oxidation
  作者：Chengli Mou、Tingshun Zhu、Pengcheng Zheng、Song Yang、Bao-An Song、Yonggui Robin Chi

  DOI：10.1002/adsc.201500771

  日期：2016.3.3

  typically with an intramolecular ester forming reaction to make the lactone ring as the last step. Another major method involves transition metal‐catalyzed coupling or carbon‐hydrogen bond activation reactions starting with pre‐existing aryl frameworks in the substrates. Here we report a new strategy for the green and rapid access to benzocoumarins and their derivatives. Our method uses readily available

  苯并香豆素是在天然产物和合成分子中广泛发现的重要结构基序。合成苯并香豆素及其衍生物的传统方法需要多个步骤，通常需要进行分子内酯形成反应以使内酯环成为最后一步。另一种主要方法涉及过渡金属催化的偶联或碳氢键活化反应，该反应从底物中预先存在的芳基骨架开始。在这里，我们报告了绿色和快速获得苯并香豆素及其衍生物的新策略。我们的方法使用容易获得的不饱和醛和香豆素作为底物，使用空气作为绿色氧化剂。整个反应通过正式的[4 + 2]过程进行，以构建新的苯环，从而基本上在单个步骤中得到苯并香豆素。没有使用金属催化剂。不涉及有毒或昂贵的试剂。我们的新方法的强大功能在大麻素（一种具有生物活性的天然产物）的简明正式全合成中得到了进一步证明。
• Carbene-catalyzed enal γ-carbon addition to α-ketophosphonates for enantioselective access to bioactive 2-pyranylphosphonates
  作者：Jun Sun、Fangcheng He、Zhongyao Wang、Dingwu Pan、Pengcheng Zheng、Chengli Mou、Zhichao Jin、Yonggui Robin Chi

  DOI：10.1039/c8cc03017k

  日期：——

  A carbene-catalyzed enantioselective [4+2] cycloaddition reaction between α,β-unsaturated aldehydes and α-ketophosphonates is developed. The reaction affords chiral 2-pyranylphosphonates with excellent enantioselectivities. The optically enriched phosphonate products bear multiple functional groups, including unsaturated lactone and phosphonate moieties that often lead to unique bio-activities. Preliminary

  开发了α，β-不饱和醛与α-酮膦酸酯之间的卡宾催化的对映选择性[4 + 2]环加成反应。反应得到具有优异对映选择性的手性2-吡喃基膦酸酯。光学富集的膦酸酯产物带有多个官能团，包括不饱和内酯和膦酸酯部分，这些官能团经常导致独特的生物活性。初步研究表明，我们反应所得的产品具有抗菌作用（X. oryzae pv。oryzae）和抗病毒活性（烟草花叶病毒），可用于植物保护。
• Carbene-Catalyzed Formal [3+3] Cycloaddition Reaction for Access to Substituted 2-Phenylbenzothiazoles
  作者：Zhibin Ni、Chengli Mou、Xun Zhu、Puying Qi、Song Yang、Yonggui Robin Chi、Zhichao Jin

  DOI：10.1002/ejoc.201901773

  日期：2020.1.31

  carbene‐catalyzed oxidative cycloaddition reaction is developed for efficient access to multi‐functionalized 2‐phenylbenzothiazoles. A broad scope of heavily substituted arenes bearing 2‐benzothiazole groups have been prepared in good to excellent yields. The remote C(sp2)–H bond in the substituted arene products can be regioselectively activated by Pd catalysts with the direction of the 2‐benzothiazole groups

  开发了碳烯催化的氧化环加成反应，可有效利用多官能化的2-苯基苯并噻唑。制备了范围广泛的带有2-苯并噻唑基团的重取代芳烃，收率良好至优异。取代的芳烃产物中的远端C（sp 2）–H键可以被Pd催化剂沿2-苯并噻唑基团的方向进行区域选择性活化。
• BITTER TASTE MODIFIERS INCLUDING SUBSTITUTED 1-BENZYL-3-(1-(ISOXAZOL-4-YLMETHYL)-1H-PYRAZOL-4-YL)IMIDAZOLIDINE-2,4-DIONES AND COMPOSITIONS THEREOF
  申请人：SENOMYX, INC.

  公开号：US20160376263A1

  公开（公告）日：2016-12-29

  The present invention includes compounds and compositions known to modify the perception of bitter taste, and combinations of said compositions and compounds with additional compositions, compounds, and products. Exemplary compositions comprise one or more of the following: cooling agents; inactive drug ingredients; active pharmaceutical ingredients; food additives or foodstuffs; flavorants, or flavor enhancers; food or beverage products; bitter compounds; sweeteners; bitterants; sour flavorants; salty flavorants; umami flavorants; plant or animal products; compounds known to be used in pet care products; compounds known to be used in personal care products; compounds known to be used in home products; pharmaceutical preparations; topical preparations; cannabis-derived or cannabis-related products; compounds known to be used in oral care products; beverages; scents, perfumes, or odorants; compounds known to be used in consumer products; silicone compounds; abrasives; surfactants; warming agents; smoking articles; fats, oils, or emulsions; and/or probiotic bacteria or supplements.

  本发明涵盖已知用于改变苦味感知的化合物和组合物，以及所述组合物和化合物与额外的组合物、化合物和产品的组合。示例组合物包括以下一种或多种：冷却剂；无活性药物成分；活性药用成分；食品添加剂或食品；调味剂或调味增强剂；食品或饮料产品；苦味化合物；甜味剂；苦味剂；酸味调味剂；咸味调味剂；鲜味调味剂；植物或动物产品；已知用于宠物护理产品中的化合物；已知用于个人护理产品中的化合物；已知用于家用产品中的化合物；制药制剂；局部制剂；大麻衍生或与大麻相关的产品；已知用于口腔护理产品中的化合物；饮料；香味、香水或除臭剂；已知用于消费品中的化合物；硅化合物；磨料；表面活性剂；发热剂；吸烟物品；脂肪、油脂或乳化剂；和/或益生菌或补充剂。