methyl (E)-2-diazo-4-(3,4-dichlorophenyl)-3-butenoate | 234084-70-9

• 分子结构分类: 有机化合物
• 英文名称: methyl (E)-2-diazo-4-(3,4-dichlorophenyl)-3-butenoate
• 英文别名: methyl (E)-2-diazo-4-(3,4-dichlorophenyl)but-3-enoate
• CAS: 234084-70-9
• 化学式: C₁₁H₈Cl₂N₂O₂
• 分子量: 271.103
• InChiKey: XXPJNUGJKBCLKM-HWKANZROSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  17
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.09
• 拓扑面积：
  28.3
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  methyl (E)-2-diazo-4-(3,4-dichlorophenyl)-3-butenoate 在 palladium on activated charcoal 氢气 、 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 正己烷 、 苯 为溶剂， 23.0 ℃ 、379.22 kPa 条件下， 反应 20.5h， 生成 methyl (4R)-4-(3,4-dichlorophenyl)-4-phenylbutanoate
  参考文献：
  名称：

  Catalytic Asymmetric Synthesis of Diarylacetates and 4,4-Diarylbutanoates. A Formal Asymmetric Synthesis of (+)-Sertraline

  摘要：

  The intermolecular C-H insertion chemistry of phenyldiazoacetates catalyzed by dirhodium tetrakis((S)-N (dodecylbenzenesulfonyl)prolinate) (Rh-2(S-DOSP)(4)) can be effectively carried out on cyclohexadienes, leading to the asymmetric synthesis of diarylacetates. The reaction of vinyldiazoacetates with cyclohexadienes results in an unprecedented carbenoid reaction that is formally a combined C-H insertion/Cope rearrangement. The synthetic utility of this novel transformation was demonstrated by its utilization in a formal asymmetric synthesis of (+)-sertraline.

  DOI：

  10.1021/ol9905699
• 作为产物：
  描述：

  3,4-二氯苯甲醛 在 硫酸 、 4-乙酰氨基苯磺酰叠氮 、 potassium tert-butylate 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 、 乙腈 、 苯 为溶剂， 反应 30.0h， 生成 methyl (E)-2-diazo-4-(3,4-dichlorophenyl)-3-butenoate
  参考文献：
  名称：

  Catalytic Asymmetric Synthesis of Diarylacetates and 4,4-Diarylbutanoates. A Formal Asymmetric Synthesis of (+)-Sertraline

  摘要：

  The intermolecular C-H insertion chemistry of phenyldiazoacetates catalyzed by dirhodium tetrakis((S)-N (dodecylbenzenesulfonyl)prolinate) (Rh-2(S-DOSP)(4)) can be effectively carried out on cyclohexadienes, leading to the asymmetric synthesis of diarylacetates. The reaction of vinyldiazoacetates with cyclohexadienes results in an unprecedented carbenoid reaction that is formally a combined C-H insertion/Cope rearrangement. The synthetic utility of this novel transformation was demonstrated by its utilization in a formal asymmetric synthesis of (+)-sertraline.

  DOI：

  10.1021/ol9905699

文献信息

• Scope and Mechanistic Analysis of the Enantioselective Synthesis of Allenes by Rhodium-Catalyzed Tandem Ylide Formation/[2,3]-Sigmatropic Rearrangement between Donor/Acceptor Carbenoids and Propargylic Alcohols
  作者：Zhanjie Li、Vyacheslav Boyarskikh、Jørn H. Hansen、Jochen Autschbach、Djamaladdin G. Musaev、Huw M. L. Davies

  DOI：10.1021/ja3061529

  日期：2012.9.19

  Rhodium-catalyzed reactions of tertiary propargylic alcohols with methyl aryl- and styryldiazoacetates result in tandem reactions, consisting of oxonium ylide formation followed by [2,3]-sigmatropic rearrangement. This process competes favorably with the standard O-H insertion reaction of carbenoids. The resulting allenes are produced with high enantioselectivity (88-98% ee) when the reaction is catalyzed by the

  炔丙基叔醇与甲基芳基乙酸酯和苯乙烯基重氮乙酸酯的铑催化反应导致串联反应，包括氧鎓叶立德形成，然后是 [2,3]-σ 重排。该过程与类卡宾的标准 OH 插入反应相得益彰。当反应由四脯氨酸二铑配合物 Rh(2)(S-DOSP)(4) 催化时，生成的丙二烯具有高对映选择性 (88-98% ee)。当外消旋叔炔丙醇用作底物时，可以进行动力学拆分。在动力学拆分条件下，形成的丙二烯具有良好的非对映选择性和对映选择性（高达6.1:1 dr，88-93% ee），未反应的醇被对映体富集到65-95% ee。计算研究表明，高不对称诱导是通过涉及两点连接的有组织的过渡态获得的：醇氧与类卡宾之间的叶立德形成以及醇与羧酸盐配体的氢键合。2,3-sigmatropic 重排通过 OH 键的初始裂解进行，生成具有紧密开壳单线态、三线态和闭壳单线态电子态的中间体。该中间体将具有显着的双自由基特征，这与供体/受体类卡宾和更高度官能化的炔丙醇有利于
• C−H Activation as a Strategic Reaction:  Enantioselective Synthesis of 4-Substituted Indoles
  作者：Huw M. L. Davies、James R. Manning

  DOI：10.1021/ja057768+

  日期：2006.2.1

  A method is described for the asymmetric synthesis of 4-substituted indoles from the Rh2(S-DOSP)4-catalyzed decomposition of vinyldiazoacetates in the presence of N-Boc-4-acetoxy-6,7-dihydroindole. The reaction proceeds via a combined C-H activation/Cope rearrangement-elimination mechanism resulting in good yields and very high asymmetric induction.

  描述了在 N-Boc-4-乙酰氧基-6,7-二氢吲哚存在下，从 Rh2(S-DOSP)4 催化的重氮乙酸乙烯酯分解不对称合成 4-取代吲哚的方法。该反应通过组合的 CH 活化/Cope 重排 - 消除机制进行，导致良好的产率和非常高的不对称诱导。
• One-Pot Synthesis of Highly Functionalized Pyridines via a Rhodium Carbenoid Induced Ring Expansion of Isoxazoles
  作者：James R. Manning、Huw M. L. Davies

  DOI：10.1021/ja803139k

  日期：2008.7.1

  A concise one-pot synthesis of highly functionalized pyridines has been developed. The first step in the reaction sequence is the formal insertion of rhodium vinylcarbenoids across the N-O bond of isoxazoles. Upon heating, the insertion products undergo a rearrangement to give 1,4-dihydropyridines. DDQ oxidation then affords the corresponding pyridines in 31-84% yield. The process has proven general

  已开发出高度官能化吡啶的简洁一锅法合成。反应序列中的第一步是将乙烯基卡宾铑正式插入到异恶唑的 NO 键上。加热后，插入产物发生重排，得到 1,4-二氢吡啶。然后DDQ氧化以31-84%的产率提供相应的吡啶。该过程已被证明适用于一系列类卡宾和异恶唑组分，并代表了合成功能化吡啶的独特断开策略。
• Gold-catalyzed highly regio- and enantioselective vinylcarbene insertion into O–H bonds of 2-pyridones
  作者：Daorui Huang、Guangyang Xu、Shiyong Peng、Jiangtao Sun

  DOI：10.1039/c6cc10246h

  日期：——

  The first gold-catalyzed highly regio- and enantioselective carbene insertion into O-H bond of 2-pyridones has been realized in the presence of catalytic amount of chiral dual-gold complexes. The corresponding chiral...

  在催化量的手性双金配合物的存在下，首次实现了金催化的对2-吡啶酮的OH键的高度区域和对映选择性卡宾的插入。相应的手性...
• Asymmetric Intermolecular C−H Activation, Using Immobilized Dirhodium Tetrakis((<i>S</i>)-<i>N</i>-(dodecylbenzenesulfonyl)- prolinate) as a Recoverable Catalyst
  作者：Huw M. L. Davies、Abbas M. Walji

  DOI：10.1021/ol0273506

  日期：2003.2.1

  readily achieved on a pyridine functionalized highly cross-linked polystyrene resin. The immobilized complex is readily recycled and exhibits excellent catalytic activity for asymmetric intermolecular C-H activation by means of rhodium carbenoid induced C-H insertion.

  [反应：见正文]在吡啶官能化的高度交联的聚苯乙烯树脂上，可以容易地实现四（（S）-N-十二烷基苯磺酰基）脯氨酸四氢吡啶鎓（Rh（2）（S-DOSP）（4））的异质化。固定化的配合物易于回收利用，并通过铑类胡萝卜素诱导的CH插入而表现出出色的催化活性，用于非对称分子间CH活化。