(Z)-methyl 2-phenylpenta-2,4-dienoate | 899797-21-8

• 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: (Z)-methyl 2-phenylpenta-2,4-dienoate
• 英文别名: methyl 2-phenylpenta-2,4-dienoate；methyl (2Z)-2-phenylpenta-2,4-dienoate
• CAS: 899797-21-8
• 化学式: C₁₂H₁₂O₂
• 分子量: 188.226
• InChiKey: CUISUHHWCVWKIB-XFFZJAGNSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.08
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  DL-扁桃酸甲酯 在 manganese(IV) oxide 、 三(二甲胺基)膦 作用下， 以 二氯甲烷 、 乙腈 为溶剂， 反应 9.0h， 生成 (E)-methyl 2-phenylpenta-2,4-dienoate 、 (Z)-methyl 2-phenylpenta-2,4-dienoate
  参考文献：
  名称：

  P(NMe₂)₃-Mediated Umpolung Alkylation and Nonylidic Olefination of α-Keto Esters

  摘要：

  A commercial phosphorus-based reagent (P(NMe2)(3)) mediates,umpolung alkylation of methyl aroylformates with benzylic and allylic bromides, leading to either Barer-type addition or ylide-free olefination products upon workup. The reaction sequence is initiated, by a two-electron redox addition of the tricoordinate phosphorus reagent with an alpha-keto ester Compound (Kukhtin-Ramirez addition). A mechanistic rationale is offered for the chemoselectivity upon which the success of this nonmetal mediated C-C bond forming strategy is based.

  DOI：

  10.1021/acs.orglett.5b01784

文献信息

• Alpha,beta-unsaturated esters and acids by stereoselective dehydration
  申请人：Deng Xiaohu

  公开号：US20060004195A1

  公开（公告）日：2006-01-05

  There are provided by the present invention certain pyrazole based CCK-1 receptor modulators which have the general formula: wherein Ar is an aromatic or heteroaromatic group, X is a hydrocarbon linker, Y is a bond or hydrocarbon linker and R 1 , R 2 , R 3 , R 4 and R 5 are certain organic substituents, methods for making the same, and stereoselective dehydration methods for generally making α,β-unsaturated esters, acids and their derivatives.

  本发明提供了一些基于吡唑的CCK-1受体调节剂，其具有以下一般式： 其中Ar是芳香族或杂环芳基，X是碳氢链，Y是键或碳氢链，R1、R2、R3、R4和R5是某些有机取代基，以及制备这些化合物的方法，以及用于通常制备α，β-不饱和酯，酸及其衍生物的立体选择性脱水方法。
• Palladium-Catalyzed Divergent Reactions of α-Diazocarbonyl Compounds with Allylic Esters: Construction of Quaternary Carbon Centers
  作者：Zi-Sheng Chen、Xin-Hua Duan、Ping-Xin Zhou、Shaukat Ali、Jian-Yi Luo、Yong-Min Liang

  DOI：10.1002/anie.201106619

  日期：2012.2.6

  two: α‐Diazocarbonyl compounds display a diverse pattern of reactivity upon palladium‐catalyzed reaction with esters. Esters bearing an alkynyl group on the carbonyl carbon atom lead to two different CC bonds at the same carbon atom in a single operation through decarboxylation and migratory insertion, whereas aromatic and benzylic acid derivatives afford aromatic and benzylic esters bearing an O‐substituted

  举两个例子：在钯催化的酯反应中，α-重氮羰基化合物表现出不同的反应模式。在羰基碳原子上带有炔基的酯通过脱羧和迁移插入在一次操作中在同一碳原子上导致两个不同的CC键，而芳族和苄基酸衍生物则提供带有O取代季铵基的芳族和苄基酯碳中心。
• Rhodium-Catalyzed Carbene Transfer Reactions for Sigmatropic Rearrangement Reactions of Selenium Ylides
  作者：Sripati Jana、Rene M. Koenigs

  DOI：10.1021/acs.orglett.9b01092

  日期：2019.5.17

  The rearrangement of selenium ylides is even today almost unexplored, although it would provide access to important organoselenium compounds with broad downstream applications. In this report, the first systematic study of sigmatropic rearrangement reactions of selenium ylides using a simple rhodium catalyst with catalyst loadings as low as 0.01 mol % is described. Selenium oxide pyrolysis of the rearrangement

  硒化氢的重排即使到今天仍几乎没有被探索，尽管它将为重要的有机硒化合物提供广泛的下游应用途径。在该报告中，描述了使用简单的铑催化剂（催化剂负载量低至0.01 mol％）对硒化亚基的σ重排反应进行的第一个系统研究。重排产物的氧化硒热解获得了重要的1，1-二取代的丁二烯。
• Cyclopropylmethyl Palladium Species from Carbene Migratory Insertion: New Routes to 1,3-Butadienes
  作者：Lei Zhou、Fei Ye、Yan Zhang、Jianbo Wang

  DOI：10.1021/ol2034405

  日期：2012.2.3

  Cyclopropylmethyl palladium species can be accessed by Pd-catalyzed reaction of either cyclopropyl N-tosylhydrazone with halide or N-tosylhydrazone with cyclopropyl halide. In both approaches migratory insertion of Pd carbene is the key process. These transformations constitute new approaches toward 1,3-butadiene derivatives.

  环丙基甲基钯物质可通过环丙基N-甲苯磺酰to与卤化物或N-甲苯磺酰with与环丙基卤化物的Pd催化反应获得。在这两种方法中，Pd卡宾的迁移插入都是关键过程。这些转变构成了针对1,3-丁二烯衍生物的新方法。
• ALPHA, BETA-UNSATURATED ESTERS AND ACIDS BY STEREOSELECTIVE DEHYDRATION
  申请人：JANSSEN PHARMACEUTICA N.V.

  公开号：EP1781617A2

  公开（公告）日：2007-05-09