(R)-tetrahydro-3-((R)-2-nitro-1-phenylethyl)pyran-4-one | 873692-35-4

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 氧烷类
• 英文名称: (R)-tetrahydro-3-((R)-2-nitro-1-phenylethyl)pyran-4-one
• 英文别名: (-)-(R)-3-[(R)-2-nitro-1-phenyl-ethyl]-tetrahydro-pyran-4-one；(R)-3-((R)-2-nitro-1-phenylethyl)tetrahydro-4H-pyran-4-one；(R)-3-((R)-2-nitro-1-phenylethyl)dihydro-2H-pyran-4(3H)-one；(3R)-3-[(1R)-2-nitro-1-phenylethyl]oxan-4-one
• CAS: 873692-35-4
• 化学式: C₁₃H₁₅NO₄
• 分子量: 249.266
• InChiKey: QSOOOANGPVEUJV-RYUDHWBXSA-N

物化性质

• 熔点：
  119-120 °C
• 沸点：
  417.4±30.0 °C(Predicted)
• 密度：
  1.231±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  18
• 可旋转键数：
  3
• 环数：
  2.0
• 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：

  四氢吡喃酮 、 β-硝基苯乙烯 在 N-{(3R,5S)-5-[(S)-2,2-dimethyl-1,3-dioxolan-4-yl]pyrrolidin-3-yl}-1,1,1-trifluoromethanesulfonamide 作用下， 反应 48.0h， 以100%的产率得到(R)-tetrahydro-3-((R)-2-nitro-1-phenylethyl)pyran-4-one
  参考文献：
  名称：

  在新的吡咯烷基双功能有机催化剂的催化下，将羰基化合物迈克尔加成到硝基烯烃中†

  摘要：

  已经从高烯丙基胺合成了用于羰基化合物不对称迈克尔加成到硝基烯烃的新型双官能吡咯烷基有机催化剂，其很容易从作为手性前体的（R）-甘油醛获得。在最佳反应条件下，这些双功能有机催化剂在多种醛（高达98：2 dr和97％ee）和酮（高达5％）的迈克尔加成反应中显示出高催化效率（在大多数情况下几乎是定量产率）和立体选择性。 98：2 dr和99％ee）转化为硝基烯烃。

  DOI：

  10.1039/c7ob02798b

文献信息

• Prolinal dithioacetals: Highly efficient organocatalysts for the direct nitro-Michael additions in both organic and aqueous media
  作者：Tanmay Mandal、Wen Kuo、Matthew Su、Kartick Bhowmick、John C.-G. Zhao

  DOI：10.1016/j.tet.2017.10.008

  日期：2017.11

  Some novel prolinal dithioacetal derivatives have been synthesized and applied as the organocatalysts for the direct Michael addition of ketones and aldehydes to nitroalkenes. High enantioselectivities and diastereoselectivities have been obtained in both organic and aqueous media (dichloromethane, water, or brine).

  已经合成了一些新颖的脯氨二乙缩醛衍生物，并将其用作有机催化剂，用于将酮和醛直接迈克尔加成到硝基烯烃上。在有机和水性介质（二氯甲烷，水或盐水）中均获得了高对映选择性和非对映选择性。
• 4-Fluoro and 4-Hydroxy Pyrrolidine-thioxotetrahydropyrimidinones: Organocatalysts for Green Asymmetric Transformations in Brine
  作者：Nikolaos Kaplaneris、Giorgos Koutoulogenis、Marianna Raftopoulou、Christoforos G. Kokotos

  DOI：10.1021/acs.joc.5b00283

  日期：2015.6.5

  The synthesis of both trans- and cis-diastereomers of pyrrolidinine-thioxotetrahydropyrimidinone bearing either a fluorine or a hydroxyl group was accomplished. The new compounds were tested for their catalytic properties in a variety of asymmetric organic transformations and compared with the first generation catalyst. It was found that the new catalysts could efficiently catalyze the reactions in

  两者的合成反式-和顺pyrrolidinine-thioxotetrahydropyrimidinone轴承任一个氟或羟基的-diastereomers被完成。测试了这些新化合物在各种不对称有机转化中的催化性能，并与第一代催化剂进行了比较。已经发现，新型催化剂可以在不使用有机溶剂的情况下，并且通过使用几乎化学计量的试剂，可以有效地催化盐水中的反应。因此，通过简单的提取就可以分离出产物，从而避免了以极高的收率，非对映选择性和对映选择性使用色谱法。
• [EN] ORGANOCATALYSTS AND METHODS OF USE IN CHEMICAL SYNTHESIS<br/>[FR] ORGANOCATALYSEURS ET PROCEDES D'UTILISATION DE CES DERNIERS DANS LA SYNTHESE CHIMIQUE
  申请人：STC UNM

  公开号：WO2006007586A1

  公开（公告）日：2006-01-19

  The present invention pertains generally to compositions comprising organocatalysts that facilitate stereo-selective reactions and the method of their synthesis and use. Particularly, the invention relates to metal-free organocatalysts for facilitation of stereo-­selective reactions, and the method of their synthesis and use. These compounds have the structure of the Formulas (I) and (II). Where X is independently selected from CH2, N-Ra, O, S or C=O; Y is CH2, N-Ra, O, S or C=O, with the proviso that at least one of X or Y is CH2, and preferably both of X and Y are CH2; Ra is H, an optionally substituted C1-C12 alkyl, preferably an optionally substituted C1-C6 alkyl including a C3-C6 cyclic alkyl group, or an optionally substituted aryl group, preferably an optionally substituted phenyl group; Rb is H, an optionally substituted C1-C12 alkyl, preferably an optionally substituted C1-C6 acyclic or a a C3-C6 cyclic alkyl group, CHO, N(Me)O, CO(S)Ra or the group of Formula (III). Where Rc and Rd are each independently H, F, C1, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C12 alkyl, more preferably a C1-C6 alkyl, and an optionally substituted aryl group, or together Rc and Rd form an optionally substituted carbocyclic or optionally substituted heterocyclic ring; R1 is OH, OR, NR'R', NHC(=O)R, NHSO2R; R2 is H, F, C1, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1­C6 alkyl, an optionally substituted aryl group or a =O group (which establishes a carbonyl group with the carbon to which =O is attached; R3 is H, OH, F, C1, Br, I, Cl, an optionally substituted C1-C20 alkyl, alkenyl or alkynyl ('hydrocarbyl') group, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl, such that the carbon to which R3 is attached has an R or S configuration; R is H, an optionally substituted C1-C20 alkyl, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl group, R' and R' are each independently H, an optionally substituted C1-C20 alkyl group, preferably an optionally substituted C1-C6 alkyl, or an optionally substituted aryl group; or together R' and R' form an optionally substituted heterocyclic, preferably a 4 to 7 membered optionally substituted heterocyclic group or an optionally substituted heteroaryl ring with the nitrogen to which R' and R' are attached; and wherein said compound is free from a metal catalyst.

  本发明涉及一般包括有机催化剂的组合物，该催化剂促进立体选择性反应以及其合成和使用方法。特别地，本发明涉及无金属有机催化剂以促进立体选择性反应，以及其合成和使用方法。这些化合物具有以下结构的式（I）和（II）。其中X独立地选择自CH2、N-Ra、O、S或C=O；Y为 、N-Ra、O、S或C=O，但至少X或Y中的一个为 ，最好是X和Y都为 ；Ra为H、可选择地取代的C1-C12烷基，最好是可选择地取代的C1-C6烷基，包括C3-C6环烷基，或可选择地取代的芳基，最好是可选择地取代的苯基；Rb为H、可选择地取代的C1-C12烷基，最好是可选择地取代的C1-C6无环或C3-C6环烷基，CHO、N(Me)O、CO(S)Ra或式（III）的基团。其中Rc和Rd各自独立地为H、F、C1、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C12烷基，更好地是C1-C6烷基，以及可选择地取代的芳基，或者Rc和Rd一起形成可选择地取代的碳环或可选择地取代的杂环；R1为OH、OR、NR'R'、NHC(=O)R、NHSO2R；R2为H、F、C1、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C6烷基，可选择地取代的芳基或=O基团（与=O连接的碳形成羰基基团）；R3为H、OH、F、C1、Br、I、Cl、可选择地取代的C1-C20烷基、烯基或炔基（'烃基'），最好是可选择地取代的C1-C6烷基，或可选择地取代的芳基，使得R3连接的碳具有R或S构型；R为H、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C6烷基，或可选择地取代的芳基，R'和R'各自独立地为H、可选择地取代的C1-C20烷基，最好是可选择地取代的C1-C6烷基，或可选择地取代的芳基；或者R'和R'一起形成可选择地取代的杂环，最好是4到7成员的可选择地取代的杂环基团或与R'和R'连接的氮原子形成可选择地取代的杂芳基环；其中所述化合物不含金属催化剂。
• A chiral thioureido acid as an effective additive for enantioselective organocatalytic Michael additions of nitroolefins
  作者：Dan-Qian Xu、Hua-Dong Yue、Shu-Ping Luo、Ai-Bao Xia、Shuai Zhang、Zhen-Yuan Xu

  DOI：10.1039/b804541k

  日期：——

  A novel and effective organocatalytic system consisting of pyrrolidinyl-thioimidazole and a chiral thioureido acid efficiently catalyzed the asymmetric Michael addition reactions of ketones to nitroolefins to afford the adducts with high diastereoselectivities (up to 99 : 1) and excellent enantioselectivities (up to 99% ee).

  由吡咯烷基-硫代咪唑和手性硫脲基酸组成的新型有效有机催化体系可有效催化酮与硝基烯烃的不对称迈克尔加成反应，从而提供具有高非对映选择性（高达99：1）和出色的对映选择性（高达99％ee）的加合物。 ）。
• Highly efficient bifunctional organocatalysts for the asymmetric Michael addition of ketones to nitroolefins
  作者：Chuanming Yu、Jun Qiu、Fei Zheng、Weihui Zhong

  DOI：10.1016/j.tetlet.2011.04.067

  日期：2011.6

  A type of secondary–secondary–tertiary triamine bifunctional organocatalysts have been properly designed and synthesized. In our study, the designed catalyst (S)-N-(pyrrolidin-2-ylmethyl)pyridin-2-amine 5 has been shown to be highly efficient to promote the asymmetric Michael addition of ketones to nitroolefins at room temperature, which afforded the corresponding adducts in excellent diastereoselectivities

  已经正确设计和合成了一种类型的仲-仲-叔三胺双官能有机催化剂。在我们的研究中，已证明设计的催化剂（S）-N-（吡咯烷-2-基甲基）吡啶-2-胺5在室温下能高效促进酮向硝基烯烃的不对称迈克尔加成反应，从而提供了相应的加合物具有出色的非对映选择性（高达99：1 dr）和对映选择性（高达> 99％ee）。