dimethyl 2-[(E)-cinnamyl]-2-propargylmalonate | 130860-69-4

• 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: dimethyl 2-[(E)-cinnamyl]-2-propargylmalonate
• 英文别名: dimethyl 2-cinnamyl-2-(prop-2-yn-1-yl)malonate；dimethyl (E)-cinnamylpropargylmalonate；dimethyl 2-[(E)-3-phenylprop-2-enyl]-2-prop-2-ynylpropanedioate
• CAS: 130860-69-4
• 化学式: C₁₇H₁₈O₄
• 分子量: 286.328
• InChiKey: QXJVRTKMLACEHA-DHZHZOJOSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.2
• 重原子数：
  21
• 可旋转键数：
  8
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.29
• 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：

  dimethyl 2-[(E)-cinnamyl]-2-propargylmalonate 在 2,6-二甲基吡啶 、 lithium hexamethyldisilazane 作用下， 以 二氯甲烷 为溶剂， 反应 6.67h， 生成 methyl 6-(tert-butyldimethylsiloxy)-10,10-bis(methoxycarbonyl)-5,5-dimethyl-13-phenyl-(12E)-dodecene-2,7-diynoate
  参考文献：
  名称：

  Diastereoselective cycloisomerizations of enediynes via palladium catalysis

  摘要：

  Considerations of atom economy drive a search for reactions that are simple additions which, performed intramolecularly, are cycloisomerizations. Exposure of acyclic enediynes to a catalyst generated by mixing a Pd(O) complex with acetic acid normally in the presence of a phosphine ligand creates [5.6.51 and [6.6.51 tricycles with extraordinary diastereoselectivity of remote stereogenic centers. Effects of substituents on the tethers as well as the olefinic and acetylenic bonds reveal a wide tolerance of functionality. While geminal substitution facilitates the cycloisomerization, it is not required. Allylic oxygen plays a role as a regioselectivity control element. Cycloisomerization dominates over allylic ionization in such cases by proper tuning of the ligand. The mechanism of this reaction appears to vary depending upon the structure of the substrate. In the normal cases, the process involves three stages, initiation, propagation, and termination. Chemoselective initiation at the acetylenic linkage closest to one of the chain's termini occurs by hydropalladation. Propagation entails intramolecular carbametalations. Termination by beta-hydrogen elimination generates a hexatriene that undergoes high rotoselectivity in its disrotatory cyclization to generate the final product. Blocking formation of the hexatriene shuts down reaction. With substrates bearing a gamma-siloxypropiolate as the acetylenic initiator, cycloisomerization forms a tricycle with different positions of the double bonds. In contrast' to the case of the other substrates, blocking formation of a hexatriene does not shut down cycloisomerization. Invoking a novel intramolecular Diels-Alder reaction of a dienylpalladium intermediate derived from the diyne moiety with the olefin, likely assisted by coordination to palladium, accounts for our observations. The ease of availability of the acyclic substrates because of the versatility of the acetylenes combined with the high chemo-, regio-, and diastereoselectivity makes this atom-economical reaction a very practical approach for the construction of polycycles.

  DOI：

  10.1021/ja00079a033
• 作为产物：
  描述：

  丙二酸二甲酯 在 sodium hydride 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 、 mineral oil 为溶剂， 反应 1.0h， 生成 dimethyl 2-[(E)-cinnamyl]-2-propargylmalonate
  参考文献：
  名称：

  1,6-烯炔与全金属芳族三核配合物和羧酸的互补反应性

  摘要：

  作为《五十周年综合报告》的一部分发行-金色周年纪念日 抽象的 呈现了在由羧酸活化的三核金属络合物存在下1，6-烯炔的不同反应性。雷公藤甲素催化剂能够使底物环化，并随后将亲核试剂掺入最终产物中。相反，在相应条件下，在相应的三铝配合物的存在下，顺序环化/双键移位发生在类似条件下。 呈现了在由羧酸活化的三核金属络合物存在下1，6-烯炔的不同反应性。雷公藤甲素催化剂能够使底物环化，并随后将亲核试剂掺入最终产物中。相反，在相应条件下，在相应的三铝配合物的存在下，顺序环化/双键移位发生在类似条件下。

  DOI：

  10.1055/s-0037-1611653

文献信息

• Gold-Catalyzed Hydroamination/Cycloisomerization Reaction of 1,6-Enynes
  作者：Lucie Leseurre、Patrick Yves Toullec、Jean-Pierre Genêt、Véronique Michelet

  DOI：10.1021/ol7017483

  日期：2007.9.1

  An efficient Au(I) catalytic system is described for the hydroamination/cycloisomerization reaction of functionalized 1,6-enynes. The reaction leads to carbo- and heterocyclic amino derivatives in good to excellent yields. The cyclizations were conducted in the presence of PPh(3)AuCl/AgSbF(6) catalyst in THF or dioxane at room temperature. The use of allyloxycarbonyl carbamate has allowed the formation

  描述了一种有效的Au（I）催化体系，用于官能化的1,6-炔烃的加氢胺化/环异构化反应。该反应以良好至优异的产率产生碳和杂环氨基衍生物。在室温下，在THF或二恶烷中，在PPh（3）AuCl / AgSbF（6）催化剂存在下进行环化反应。烯丙氧基羰基氨基甲酸酯的使用已允许通过连续的Au和Pd催化反应形成游离氨基衍生物。
• Ligand dependence of molybdenum-catalyzed alkylations. Molybdenum-isonitrile complexes as a new class of highly reactive alkylation catalysts
  作者：Barry M. Trost、Craig A. Merlic

  DOI：10.1021/ja00182a018

  日期：1990.12

  generates the most effective molybdenum catalysts known to date. The reactive catalyst proved to be Mo(RNC) 4 (CO) 2 . With this new catalyst, a much broader range of substrates can be employed including many that failed or reacted very poorly by using molybdenum hexacarbonyl. The regioselectivity also differs from that obtained with molybdenum hexacarbonyl. The stereochemistry of the reaction proceeds with

  已经制备了一系列带有-α-二亚胺、N,N'-二亚芳基乙二胺和异腈配体的钼配合物，并评估了它们通过使用乙酸烯丙酯，尤其是烯丙基砜催化烷基化的能力。与bpyMo(CO) 4 相比，(bpy)Mo(CH 3 CN)(CO) 3 被证明是一种非常有效的催化剂。将异腈配体添加到六羰基钼上可产生迄今为止已知的最有效的钼催化剂。反应性催化剂被证明是Mo(RNC) 4 (CO) 2 。使用这种新催化剂，可以使用更广泛的底物，包括许多因使用六羰基钼而失效或反应非常差的底物。区域选择性也不同于使用六羰基钼获得的区域选择性。即使在产生与六羰基钼的非对映异构体混合物的条件下，反应的立体化学也以非常干净的净保留构型进行。提出了一种解释看似不同的催化剂复合物的机械原理
• Stereoselective Ir(iii)-catalyzed dimerization reaction of enynes: an entry to functionalized polyunsaturated and cyclic systems
  作者：Mehdi Ez-Zoubir、Florent Le Boucher d'Herouville、Jack A. Brown、Virginie Ratovelomanana-Vidal、Véronique Michelet

  DOI：10.1039/c0cc00721h

  日期：——

  The Ir(III) complex [Ir2H2I3((rac)-Binap)2]+I− efficiently promotes the selective dimerization of 1,6-, 1,7-enynes and functionalized alkynes. This catalytic process results in the formation of head-to-head isomers with (E)-stereoselectivity. Subsequent Rh-catalyzed cycloisomerization under reductive conditions led to the corresponding 1,2-dialkylidenecyclopentane derivatives.

  铱(III)络合物[Ir2H2I3((rac)-Binap)2]+I−能有效促进1,6-、1,7-烯炔和功能化炔的选择性二聚反应。这一催化过程形成了具有(E)-立体选择性的头对头异构体。随后在还原条件下的Rh催化环异构化反应中，得到了相应的1,2-二烷亚基环戊烷衍生物。
• Synthesis of functionalized carbo- and heterocycles via gold-catalyzed cycloisomerization reactions of enynes
  作者：Lucie Leseurre、Chung-Meng Chao、Tomohiro Seki、Emilie Genin、Patrick Y. Toullec、Jean-Pierre Genêt、Véronique Michelet

  DOI：10.1016/j.tet.2008.11.105

  日期：2009.2

  conditions were compatible with various functional groups on the nucleophiles. Severe limitations were observed when the allylic position of the enyne is substituted by electron-withdrawing groups. The mechanism of the reaction was investigated via the synthesis of a deuterated aromatic ring: we showed that the source of proton involved in the protodemetallation step originates from the acidic activated

  PPh 3 AuCl / AgSbF 6催化体系促进了Friedel-Crafts串联式将富电子的芳族和杂芳族衍生物加到未活化的烯烃中，然后进行C-C键环化反应。该系统的效率允许在很短的时间内进行室温反应。研究了该反应的范围和局限性。反应条件与亲核试剂上的各种官能团相容。当烯炔的烯丙基位置被吸电子基团取代时，观察到严重的局限性。通过氘代芳环的合成研究了反应机理：我们表明，参与原金属脱金属步骤的质子源于亲核试剂的酸性活化C-H键。
• Ruthenium catalyzed enyne cycloisomerizations and hydroxycyclizations with skeletal rearrangement
  作者：J.W. Faller、Philip P. Fontaine

  DOI：10.1016/j.jorganchem.2006.01.009

  日期：2006.4

  A neutral arene-tethered ruthenium complex was found to be a catalyst precursor for enyne cycloisomerizations and hydroxycyclizations. The observed products were the result of a skeletal rearrangement process, and include an unusual cyclization to form a six-membered ring. Labeling studies on the six-membered ring product are in accord with an electrophilic activation mechanism that proceeds via cationic

  发现中性的芳烃系的钌络合物是烯炔环异构化和羟基环化的催化剂前体。观察到的产物是骨骼重排过程的结果，并且包括不寻常的环化以形成六元环。对六元环产物的标记研究符合通过阳离子环丙基卡宾中间体进行的亲电活化机理。