methyl 3-acetoxy-2-methylene-5-(p-tolyl)pent-4-ynoate | 1443359-13-4

• 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: methyl 3-acetoxy-2-methylene-5-(p-tolyl)pent-4-ynoate
• 英文别名: Methyl 3-acetyloxy-2-methylidene-5-(4-methylphenyl)pent-4-ynoate；methyl 3-acetyloxy-2-methylidene-5-(4-methylphenyl)pent-4-ynoate
• CAS: 1443359-13-4
• 化学式: C₁₆H₁₆O₄
• 分子量: 272.301
• InChiKey: LYIQIZCRFGIUBV-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.9
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  52.6
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl 3-acetoxy-2-methylene-5-(p-tolyl)pent-4-ynoate 在 sodium azide 、 三氟甲磺酸 、 copper(l) chloride 作用下， 以 甲醇 、 水 、 1,2-二氯乙烷 为溶剂， 反应 20.0h， 生成 methyl 5-amino-6-(p-tolyl)nicotinate
  参考文献：
  名称：

  Cu(I)-Catalyzed Aminative Aza-Annulation of Enynyl Azide using N-Fluorobenzenesulfonimide: Synthesis of 5-Aminonicotinates

  摘要：

  An unprecedented copper-catalyzed aminative aza-annulation of enynyl azide using commercially available N-fluorobenzenesulfonhnide (NFSI) as an amination reagent is described. The reaction proceeds via regioselective inter-/intramolecular diamination, incorporating one nitrogen from the NFSI and the other from the azide, to provide amino substituted nicotinate derivatives in a single step with moderate to high yield. This method represents an efficient way to access diverse aminonicotinates through direct C-N bond-coupling processes.

  DOI：

  10.1021/acs.orglett.8b01228
• 作为产物：
  描述：

  (4-甲基苯基)炔丙醛 在 三乙烯二胺 、 4-二甲氨基吡啶 作用下， 以 二氯甲烷 、 二甲基亚砜 为溶剂， 反应 3.0h， 生成 methyl 3-acetoxy-2-methylene-5-(p-tolyl)pent-4-ynoate
  参考文献：
  名称：

  铜催化烯丙基叠氮化物的分子内硫属元素胺化：5-硒基/亚磺酰基烟酸酯的合成

  摘要：

  已经描述了用于合成5-硒烯基/亚磺酰基烟酸酯的新方法，该方法涉及铜催化的烯丙基叠氮化物与二有机基-二卤代羰基化的有机硫属酰基氮杂-环化。该方法在一锅中通过区域选择性分子内硫属元素铝化作用使炔烃双官能化，从而以良好或优异的产率提供取代的5-硫属元素酰基烟酸酯。所得烟酸酯提供了它们的氧化物，砜和酸衍生物的途径。

  DOI：

  10.1021/acs.orglett.8b03695

文献信息

• Novel [4 + 2]-Benzannulation To Access Substituted Benzenes and Polycyclic Aromatic and Benzene-Fused Heteroaromatic Compounds
  作者：Chada Raji Reddy、Uredi Dilipkumar、Motatipally Damoder Reddy

  DOI：10.1021/ol501683v

  日期：2014.7.18

  been developed for the synthesis of aromatic and heteroaromatic compounds through tandem allylic substitution/hydroarylative cycloisomerization process. This method provides a facile and general route to substituted benzenes, naphthalenes, other polycyclic aromatics, and various benzene-fused heteroaromatic compounds such as benzofuran, benzothiophene, indole, and carbazoles.

  已开发出一种常见的[4 + 2]苯乙醛的Morita–Baylis–Hillman乙酸酯与硼酸苯甲酸酯化方法，用于通过串联烯丙基取代/加氢芳基环异构化过程合成芳族和杂芳族化合物。此方法为取代的苯，萘，其他多环芳烃和各种苯稠合的杂芳族化合物（如苯并呋喃，苯并噻吩，吲哚和咔唑）提供了简便而通用的途径。
• Aza-Annulation of Enynyl Azides: A New Approach to Substituted Pyridines
  作者：Chada Raji Reddy、Sujatarani A. Panda、Motatipally Damoder Reddy

  DOI：10.1021/ol503752k

  日期：2015.2.20

  Synthesis of substituted pyridines through a novel aza-annulation of 2-en-4-ynyl azides, derived from MBH-acetates of acetylenic aldehydes, is described. A variety of enynyl azides having aryl, heteroaryl, and alkyl groups on the alkyne functionality successfully participated in the Ag-mediated annulation reaction to provide the corresponding 3,6-disubstituted pyridines. I2-Mediated cyclization was

  描述了通过衍生自炔醛的MBH-乙酸酯的新的2-en-4-炔基叠氮化物的氮杂-环烷基合成取代的吡啶。在炔官能团上具有芳基，杂芳基和烷基的各种烯丙基叠氮化物成功地参与了Ag介导的环化反应，以提供相应的3，6-二取代的吡啶。发现I 2-介导的环化受到炔官能团上的取代基的控制，所述取代基由炔炔官能团上具有富电子取代基的烯丙基叠氮化物提供了5-碘-3，6-二取代的吡啶。
• A Thioannulation Approach to Substituted Thiophenes from Morita–Baylis–Hillman Acetates of Acetylenic Aldehydes
  作者：Chada Raji Reddy、Reddi Rani Valleti、Motatipally Damoder Reddy

  DOI：10.1021/jo400567h

  日期：2013.7.5

  A new protocol has been developed for the synthesis of substituted thiophenes under mild and metal-free reaction conditions via the base-promoted thioannulation of Morita–Baylis–Hillman acetates of acetylenic aldehydes with potassium thioacetate involving a tandem allylic substitution/deacetylative 5-exo-dig-thiocycloisomerization. The obtained products provide an entry to 4H-thieno[3,2-c]chromene

  已开发出一种新的方案，用于在温和且无金属的反应条件下，通过Morita-Baylis-Hillman乙炔醛乙酸盐与硫代乙酸钾的碱促进硫代环化反应，合成串联噻吩取代/去乙酰化5-exo-挖-硫代环异构化。所获得的产物提供了4 H-噻吩并[3，2- c ]亚甲基和噻吩并[3，2- c ]二氢喹啉的入口。
• Synthesis of substituted 3-furanoates from MBH-acetates of acetylenic aldehydes via tandem isomerization–deacetylation–cycloisomerization: access to Elliott's alcohol
  作者：Chada Raji Reddy、Gaddam Krishna、Motatipally Damoder Reddy

  DOI：10.1039/c3ob42396d

  日期：——

  A new method for the synthesis of 5-substituted furan-3-carboxylates from Morita–Baylis–Hillman acetates of acetylenic aldehydes is reported. The process involves palladium-catalyzed isomerization followed by base-promoted deacetylation and cycloisomerization reactions. The utility of this chemistry is further demonstrated by the synthesis of Elliott's alcohol, a key intermediate of the pyrethroid resmethrins.

  报告了一种从乙炔醛的 MoritaâBaylisâHillman 乙酸酯合成 5-取代呋喃-3-羧酸酯的新方法。该过程包括钯催化异构化，然后进行碱促进的脱乙酰化和环异构化反应。通过合成埃利奥特醇（一种拟除虫菊酯类化合物除虫菊酯的关键中间体），进一步证明了这种化学方法的实用性。
• Domino Aza-Annulations of Enynyl-/(Alkynyl)aryl-acetonitriles to Access Nitrogen-Enriched Heterocycles
  作者：Chada Raji Reddy、Veeramalla Ganesh、Nagender Punna

  DOI：10.1021/acs.joc.2c01136

  日期：2022.9.2