α-methoxy cinnamic acid | 90843-50-8

• 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: α-methoxy cinnamic acid
• 英文别名: Methoxycinnamic acid；2-methoxy-3-phenylprop-2-enoic acid
• CAS: 90843-50-8
• 化学式: C₁₀H₁₀O₃
• mdl: MFCD00799235
• 分子量: 178.188
• InChiKey: CNXZMGRWEYQCOQ-UHFFFAOYSA-N

物化性质

• 熔点：
  128 °C
• 沸点：
  305.7±30.0 °C(Predicted)
• 密度：
  1.206±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  13
• 可旋转键数：
  3
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.1
• 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：

  α-methoxy cinnamic acid 在 C₄₂H₄₈CoP₂ 、 氢气 、 三乙胺 、 锌 作用下， 以 甲醇 为溶剂， 50.0 ℃ 、3.45 MPa 条件下， 反应 16.0h， 以88%的产率得到(S)-2-methoxy-3-phenylpropionic acid
  参考文献：
  名称：

  通过均裂 H2 裂解钴催化 α, β-不饱和羧酸不对称氢化

  摘要：

  描述了使用容易制备的双 (膦) 钴 (0) 1,5- 环辛二烯预催化剂对 α, β-不饱和羧酸进行不对称氢化。具有各种取代模式的二、三和四取代丙烯酸衍生物以及脱氢-α-氨基酸衍生物以高产率和对映选择性氢化，得到手性羧酸，包括萘普生、(S)-氟比洛芬和 D-多巴前体。经常观察到高达 200 的营业额。使用还原的钴 (0) 预催化剂观察到与常见有机官能团的相容性，并确定甲醇和异丙醇等质子溶剂是最佳的。合成了一系列双（膦）钴（II）双（新戊酸盐）配合物，它们是最先进的钌（II）催化剂的结构类似物，表征并证明具有催化能力。X 波段 EPR 实验显示双（膦）钴（II）双（羧酸盐）在催化反应中生成，并被确定为催化剂静止状态。从化学计量反应中分离和表征钴 (II)-底物复合物表明，在游离羧酸存在下，烯烃插入氢化钴中，产生与催化反应相同的烷烃对映异构体。氘标记研究确定了通过 Co(0) 和 H2（或 D2）顺式加成通过烯烃双键激活均裂

  DOI：

  10.1021/jacs.9b13876
• 作为产物：
  描述：

  甲氧基乙酸甲酯 、 苯甲醛 在 sodium methylate 作用下， 以 甲醇 为溶剂， 生成 α-methoxy cinnamic acid
  参考文献：
  名称：

  Synthesis and structure–activity relationship of botryllamides that block the ABCG2 multidrug transporter

  摘要：

  In previous work, botryllamides discovered from the marine ascidian Botryllus tyreus were characterized as selective inhibitors of the ABCG2 multidrug transporter. However, the structural basis for this activity could not be established. In this study, botryllamide F, the core botryllamide structure, and botryllamide G, the most potent botryllamide ABCG2 inhibitor, were synthesized along with a series of structural variants for evaluation of structure - activity relationships. The biological activity of synthetic botryllamide analogs implied that the 2-methoxy-p-coumaric acid portion, and the degree of double bond conjugation within this group, were critical for inhibition of ABCG2. However, variations in the substituents on the two aryl groups did not appear to significantly impact the potency or degree of inhibition. (C) 2010 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.bmcl.2010.01.016

文献信息

• Versatile One-Pot Synthesis of Polysubstituted Cyclopent-2-enimines from α,β-Unsaturated Amides: Imino-Nazarov Reaction
  作者：Ting Fan、Ao Wang、Jia-Qi Li、Jian-Liang Ye、Xiao Zheng、Pei-Qiang Huang

  DOI：10.1002/anie.201805641

  日期：2018.8.6

  The imino‐Nazarov cyclization of the polysubstituted pentan‐1,4‐diene‐3‐imines was realized. To this aim, a one‐pot procedure involving reductive alkenyliminylation of α,β‐unsaturated secondary amides with potassium organotrifluoroborates, followed by acid‐catalyzed imino‐Nazarov cyclization of the polysubstituted pentan‐1,4‐diene‐3‐imine intermediates, was studied systematically. This mild, operationally

  多取代的戊丹-1,4-二烯-3-亚胺的亚氨基-纳扎罗夫环化反应得以实现。为此，采用了一锅法，其中包括将α，β-不饱和仲酰胺与有机三氟硼酸钾进行还原性烯基亚氨基化，然后对多取代的戊丹-1,4-二烯-3-亚胺中间体进行酸催化的亚氨基-纳扎罗夫环化。有系统地研究。这种温和，操作简单，灵活且高产的方案有效地提供了多取代的戊丹-1,4-二烯-3-亚胺，环戊烯亚胺和α-氨基环戊烯酮，它们在有机合成中是有用的支架。通过密度泛函理论计算研究了多取代的戊丹-1,4-二烯-3-亚胺在C2位置的取代基效应。
• 氧杂螺环双膦配体及其在α,β-不饱和羧酸不 对称氢化中的应用
  申请人：凯特立斯（深圳）科技有限公司

  公开号：CN109503659B

  公开（公告）日：2021-06-18

  本发明提供的一种氧杂螺环双磷配体，具有以下通式(I)的结构：其中，通式(I)中：R1、R2、R3和R4相同，其为烷基、烷氧基、芳基、芳氧基或氢原子，所述R1、R2、R3和R4包括成环、不成环、任意两个成环或两两之间形成多环的形式；R5、R6为烷基、芳基或氢原子；R7、R8为烷基或苄基者芳基。本发明还提供了一种氧杂螺环双膦配体O‑SDP在α,β‑不饱和羧酸不对称氢化中的应用。其与钌的络合物在多种类型的α,β‑不饱和羧酸的不对称氢化中都表现出优异的活性和对映选择性，能够以高达99％的对映选择性得到手性羧酸产物。该合成方法可以应用与Paroxetine、Femoxetine、nipecotic acid以及Sacubitril等具有重要生物活性的化学分子的核心骨架的构建中。
• OXA-SPIRODIPHOSPHINE LIGAND AND METHOD FOR ASYMMETRIC HYDROGENATION OF alpha, beta-UNSATURATED CARBOXYLIC ACIDS
  申请人：SHENZHEN CATALYS TECHNOLOGY CO., LTD.

  公开号：US20210340168A1

  公开（公告）日：2021-11-04

  The present invention provides an oxa-spirodiphosphine ligand having a structure of general Formula (I) below: wherein in general Formula (I), R 1 , R 2 , R 3 and R 4 are the same, and are alkyl, alkoxy, aryl, aryloxy, or hydrogen, in which R 1 , R 2 , R 3 and R 4 may or may not form a ring, any two of them may form a ring, or a polycyclic ring may be formed between two pairs of them; R 5 and R 6 is alkyl, aryl, or hydrogen; and R 7 and R 8 is alkyl, benzyl, or aryl. The present invention also provides a method for asymmetric hydrogenation of α,β-unsaturated carboxylic acids. A complex of the oxa-spirodiphosphine ligand with ruthenium shows excellent activity and enantioselectivity in the asymmetric hydrogenation of various α,β-unsaturated carboxylic acids, with which a chiral carboxylic acid product can be obtained with an enantioselectivity up to 99%.

  本发明提供了一种具有下面一般式（I）结构的氧杂螺环二膦配体： 在一般式（I）中，R1、R2、R3和R4相同，可以是烷基、烷氧基、芳基、芳氧基或氢，其中R1、R2、R3和R4可能形成环，也可能不形成环，其中任意两个可以形成环，或者两对它们之间可能形成多环环；R5和R6是烷基、芳基或氢；R7和R8是烷基、苄基或芳基。本发明还提供了一种不对称氢化α，β-不饱和羧酸的方法。氧杂螺环二膦配体与钌形成的配合物在各种α，β-不饱和羧酸的不对称氢化中表现出优异的活性和对映选择性，可获得对映选择性高达99%的手性羧酸产品。
• APPLICATION OF AN IRIDIUM COMPLEX IN ASYMMETRIC CATALYTIC HYDROGENATION OF AN UNSATURATED CARBOXYLIC ACID
  申请人：Zhejiang Jiuzhou Pharmaceutical Co., Ltd.

  公开号：EP2275398B1

  公开（公告）日：2016-05-04
• Synthesis and structure–activity relationship of botryllamides that block the ABCG2 multidrug transporter
  作者：Kentaro Takada、Nobutaka Imamura、Kirk R. Gustafson、Curtis J. Henrich

  DOI：10.1016/j.bmcl.2010.01.016

  日期：2010.2

  In previous work, botryllamides discovered from the marine ascidian Botryllus tyreus were characterized as selective inhibitors of the ABCG2 multidrug transporter. However, the structural basis for this activity could not be established. In this study, botryllamide F, the core botryllamide structure, and botryllamide G, the most potent botryllamide ABCG2 inhibitor, were synthesized along with a series of structural variants for evaluation of structure - activity relationships. The biological activity of synthetic botryllamide analogs implied that the 2-methoxy-p-coumaric acid portion, and the degree of double bond conjugation within this group, were critical for inhibition of ABCG2. However, variations in the substituents on the two aryl groups did not appear to significantly impact the potency or degree of inhibition. (C) 2010 Elsevier Ltd. All rights reserved.