(R)-3-(2-methoxyphenyl)-2,2-dimethyl-4-nitrobutanal | 1198362-06-9

• 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: (R)-3-(2-methoxyphenyl)-2,2-dimethyl-4-nitrobutanal
• 英文别名: (3R)-3-(2-methoxyphenyl)-2,2-dimethyl-4-nitrobutanal
• CAS: 1198362-06-9
• 化学式: C₁₃H₁₇NO₄
• mdl: MFCD27996023
• 分子量: 251.282
• InChiKey: JUOJPXBJQPRMGX-LLVKDONJSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  18
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.46
• 拓扑面积：
  72.1
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  1-methoxy-2-((E)-2-nitrovinyl)benzene 、 异丁醛 在 ethyl (1R,5R,9S,13S,14R)-14-[[(1R,2R)-2-aminocyclohexyl]carbamothioylamino]-5,9,13-trimethyltetracyclo[11.2.1.01,10.04,9]hexadecane-5-carboxylate 作用下， 以 水 为溶剂， 反应 48.0h， 以84%的产率得到(R)-3-(2-methoxyphenyl)-2,2-dimethyl-4-nitrobutanal
  参考文献：
  名称：

  两亲双功能伯胺-硫脲在有机或水性介质中促进异丁醛与硝基烯烃的高对映选择性迈克尔加成

  摘要：

  设计并合成了一类新的基于拜耳烷支架的手性两亲双功能硫脲，每个硫脲都含有伯氨基，从容易获得的天然产物异甜菊醇中合成。硫脲被证明可有效催化异丁醛和硝基烯烃之间的不对称迈克尔加成。手性硫脲 1a 提供 S 对映异构体，而 1b 提供 R 对映异构体，两者均具有高产率（高达 92 %）和高至极好的对映选择性（高达 98 %）。此外，反应在温和条件下在有机溶剂和水中均顺利进行。

  DOI：

  10.1002/ejoc.201101086

文献信息

• ORGANOCATALYST
  申请人：Chen Kwunmin

  公开号：US20110040104A1

  公开（公告）日：2011-02-17

  The present invention provides an organocatalyst of formula (I), wherein R 1 is —H, —OH, —O—Si(R 4 )(R 5 )(R 6 ) or C 1-6 alkoxy, in which R 4 , R 5 and R 6 are identical or different and independently selected from the group consisting of C 1-6 alkyl, phenyl and phenyl substituted with C 1-6 alkyl; R 2 is —OH or ═O; X 1 is one selected from the group consisting of —NH—, —S— and X 2 is one selected from the group consisting of —C(═O)—, —CH 2 — and and X 1 is different from X 2 . The high yield and enantioselectivity of an addition reaction are obtained by using the organocatalyst of the present invention.

  本发明提供了一种式(I)的有机催化剂，其中R1为—H，—OH，—O—Si(R4)(R5)(R6)或C1-6烷氧基，其中R4、R5和R6相同或不同，并且独立地选自由C1-6烷基、苯基和苯基上取代的C1-6烷基的群；R2为—OH或═O；X1为从—NH—、—S—中选择的一种；X2为从—C(═O)—、—CH2—中选择的一种；X1与X2不同。通过使用本发明的有机催化剂，可以获得加成反应的高产率和对映选择性。
• Asymmetric Michael Addition Organocatalyzed by α,β-Dipeptides under Solvent-Free Reaction Conditions
  作者：C. Gabriela Avila-Ortiz、Lenin Díaz-Corona、Erika Jiménez-González、Eusebio Juaristi

  DOI：10.3390/molecules22081328

  日期：——

  α,β-dipeptides as chiral organocatalysts in the asymmetric Michael addition reaction between enolizable aldehydes and N-arylmaleimides or nitroolefins is described. With N-arylmaleimides as substrates, the best results were achieved with dipeptide 2 as a catalyst in the presence of aq. NaOH. Whereas dipeptides 4 and 6 in conjunction with 4-dimethylaminopyridine (DMAP) and thiourea as a hydrogen bond

  描述了六种新的α，β-二肽作为手性有机催化剂在可烯化醛与N-芳基马来酰亚胺或硝基烯烃之间的不对称迈克尔加成反应中的应用。以N-芳基马来酰亚胺为底物，在水溶液中存在二肽2作为催化剂可获得最佳结果。氢氧化钠 而二肽4和6与4-二甲基氨基吡啶（DMAP）和作为氢键供体的硫脲结合，被证明是异丁醛与各种硝基烯烃之间对映选择性反应中的高效有机催化体系。
• Highly enantioselective Michael addition of aldehydes to nitroolefins catalyzed by primary amine thiourea organocatalysts
  作者：Jia-Rong Chen、You-Quan Zou、Liang Fu、Fan Ren、Fen Tan、Wen-Jing Xiao

  DOI：10.1016/j.tet.2010.05.056

  日期：2010.7

  Asymmetric Michael addition reactions of aldehydes to nitroolefins have been successfully initiated by a series of primary amine thiourea bifunctional catalysts, with high enantioselectivities (90–98% ee) and excellent yields (80–96%). The privileged quinine scaffold was found to be essential to the reaction efficiency and enantioselectivity.

  一系列伯胺硫脲双功能催化剂具有高对映选择性（90-98％ee）和优异的收率（80-96％），已成功地引发了醛与硝基烯烃的迈克尔不对称迈克尔加成反应。发现特权的奎宁支架对于反应效率和对映选择性是必不可少的。
• Asymmetric Michael Addition of Isobutyraldehyde to Nitroolefins Using an <i>α</i>,<i>α</i>-Diphenyl-(<i>S</i>)-prolinol-Derived Chiral Diamine Catalyst
  作者：Wei Han、Takeshi Oriyama

  DOI：10.1246/bcsj.20200078

  日期：2020.8.15

  The enantioselective Michael addition of isobutyraldehyde to nitroolefin analogs was achieved by utilizing an α,α-diphenyl-(S)-prolinol-derived chiral diamine catalyst 1b. In this protocol, catalys...

  通过使用α,α-二苯基-(S)-脯氨醇衍生的手性二胺催化剂1b，实现了异丁醛对硝基烯烃类似物的对映选择性迈克尔加成。在该协议中，催化剂...
• Asymmetric Michael reaction between aldehydes and nitroalkanes promoted by pyrrolidine-containing C2-symmetric organocatalysts
  作者：K. A. Bykova、A. A. Kostenko、A. S. Kucherenko、S. G. Zlotin

  DOI：10.1007/s11172-019-2568-2

  日期：2019.7

  Bifunctional C2-symmetric organocatalysts derived from chiral 1,2-diaminoethanes and (S)-2-aminomethylpyrrolidine were fi rst used for promoting the asymmetric Michael addition of aliphatic aldehydes to nitroalkenes. The synthesized enantioenriched (up to 82% ee) products can be transformed into various biologically active γ-aminobutyric acid derivatives.

  衍生自手性 1,2-二氨基乙烷和 (S)-2-氨基甲基吡咯烷的双功能 C2 对称有机催化剂首先用于促进脂肪醛与硝基烯烃的不对称迈克尔加成反应。合成的富含对映体（高达 82% ee）的产品可以转化为各种具有生物活性的 γ-氨基丁酸衍生物。