(R)-2-isopropyl-1-tosylaziridine | 142745-26-4

• 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: (R)-2-isopropyl-1-tosylaziridine
• 英文别名: (2R)-1-(4-methylphenyl)sulfonyl-2-propan-2-ylaziridine
• CAS: 142745-26-4
• 化学式: C₁₂H₁₇NO₂S
• 分子量: 239.338
• InChiKey: KEQXAGSLQICYGJ-UEWDXFNNSA-N

物化性质

• 沸点：
  347.5±35.0 °C(Predicted)
• 密度：
  1.196±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  16
• 可旋转键数：
  3
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  45.5
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  (R)-2-isopropyl-1-tosylaziridine 在 manganese(IV) oxide 、 叔丁基锂 作用下， 以 四氢呋喃 、 六甲基磷酰三胺 、 二氯甲烷 、 正戊烷 为溶剂， 反应 3.5h， 生成
  参考文献：
  名称：

  Stereoselective Synthesis of 2,6-cis- and 2,6-trans-Piperidines through Organocatalytic Aza-Michael Reactions: A Facile Synthesis of (+)-Myrtine and (−)-Epimyrtine

  摘要：

  Both 2,6-cis- and 2,6-trans-piperidines were prepared from common substrates through organocatalytic aza-Michael reactions promoted by the gem-disubstituent effect in conjunction with dithiane coupling reactions. The organocatalytic aza-Michael reaction enabled a facile synthesis of (+)-myrtine and (-)-epimyrtine from a common substrate.

  DOI：

  10.1021/ol103064f
• 作为产物：
  描述：

  (E)-4-methyl-N-(2-methylpropylidene)benzenesulfonamide 在 sodium hydride 作用下， 以 乙腈 为溶剂， 反应 24.67h， 生成 (R)-2-isopropyl-1-tosylaziridine
  参考文献：
  名称：

  Highly stereoselective aziridination of imines with (S)-dimethylsulfonium-(p-tolylsulfinyl)methylide

  摘要：

  Addition of (S)-dimethylsulfonium-(p-tolylsulfinyl)methylide to N-tosyl imines afforded the corresponding sulfinyl aziridines with full enantio- and diastereoselectivity. The chiral sulfinyl substituent was removed without ring opening leading to enantiopure 2-substituted aziridines. (C) 2007 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2007.03.117

文献信息

• Enantioselective Syntheses of Morpholines and Their Homologues via S_N2-Type Ring Opening of Aziridines and Azetidines with Haloalcohols
  作者：Manas K. Ghorai、Dipti Shukla、Kalpataru Das

  DOI：10.1021/jo901297d

  日期：2009.9.18

  yield and enantioselectivity of a variety of substituted nonracemic morpholines and their homologues is described. The reaction proceeds via an SN2-type ring opening of activated aziridines and azetidines by suitable halogenated alcohols in the presence of Lewis acid followed by base-mediated intramolecular ring closure of the resulting haloalkoxy amine.

  描述了一种高区域和立体选择性策略，用于高产率和对映选择性地合成各种取代的非外消旋吗啉及其同系物。通过S进行反应Ñ在路易斯酸存在下2型开环活性氮丙啶和氮杂环丁烷的通过合适的卤代醇，然后将所得卤代烷氧基胺的碱介导的分子内闭环。
• A Highly Effective Bis(sulfonamide)-Diamine Ligand: A Unique Chiral Skeleton for the Enantioselective Cu-Catalyzed Henry Reaction
  作者：Wei Jin、Xincheng Li、Yongbo Huang、Fan Wu、Boshun Wan

  DOI：10.1002/chem.201000964

  日期：——

  As a unique chiral skeleton, the newly developed bis(sulfonamide)–diamine, which contains both diamine and bis(sulfonamide) moieties, was a highly effective ligand for the asymmetric Cu(OAc)2‐catalyzed Henry reaction between nitromethane and aldehydes with a low catalyst loading at room temperature (see scheme). Both aliphatic and aromatic aldehydes gave excellent enantioselectivities of up to 99 % ee

  壁橱里的骷髅！作为独特的手性骨架，新开发的双（磺酰胺）-二胺同时含有二胺和双（磺酰胺）部分，是不对称Cu（OAc）2催化硝基甲烷与醛之间的亨利反应的高效配体。室温下催化剂负载低（请参阅方案）。脂族和芳族醛均具有高达99％ee的出色对映选择性 。
• Diastereoselective Desymmetrization of <i>p</i>-Quinamines through Regioselective Ring Opening of Epoxides and Aziridines
  作者：Sandip B. Jadhav、Rambabu Chegondi

  DOI：10.1021/acs.orglett.9b04110

  日期：2019.12.20

  A highly diastereoselective desymmetrization of p-quinamines via regioselective ring opening of epoxides and aziridines under mild conditions has been developed. A chairlike six-membered transition state with minimized 1,3-diaxial interactions explains the relative stereoselectivity of the cyclization reaction. This transition-metal free [3 + 3] annulation reaction provides rapid access to fused bicyclic

  已经开发了在温和条件下通过环氧化物和氮丙啶的区域选择性开环对对苯二胺的高度非对映选择性去对称化。具有最小化的1,3-双轴相互作用的椅子状六元过渡态解释了环化反应的相对立体选择性。这种无过渡金属的[3 + 3]环化反应可快速接近具有四取代碳中心的稠合双环吗啉和哌嗪。另外，它还可以通过使用容易获得的手性非外消旋环氧化物和氮丙啶来合成富含对映体的产物。
• Stereodefined <i>N,O</i>-Acetals: Pd-Catalyzed Synthesis from Homopropargylic Amines and Utility in the Flexible Synthesis of 2,6-Substituted Piperidines
  作者：Haejin Kim、Young Ho Rhee

  DOI：10.1021/ja2116298

  日期：2012.3.7

  N,O-acetals. The key to this strategy, chemo- and stereoselective synthesis of N,O-acetals, was achieved by the Pd-catalyzed addition of sulfonyl-protected homopropargylic amines to alkoxyallene. The N,O-acetals generated in this way were combined with Au-catalyzed cycloisomerization to give an access to 2,6-disubstituted piperidines with stereochemical flexibility.

  我们开发了一种概念上新的合成策略，该策略利用不稳定的无环 N,O-缩醛的立体化学信息。该策略的关键，N,O-缩醛的化学和立体选择性合成，是通过 Pd 催化将磺酰基保护的高炔丙胺加成到烷氧基丙二烯上来实现的。以这种方式生成的 N,O-缩醛与 Au 催化的环异构化相结合，以提供具有立体化学灵活性的 2,6-二取代哌啶。
• Syntheses of Chiral β- and γ-Amino Ethers, Morpholines, and Their Homologues via Nucleophilic Ring-Opening of Chiral Activated Aziridines and Azetidines
  作者：Manas K. Ghorai、Dipti Shukla、Aditya Bhattacharyya

  DOI：10.1021/jo300002u

  日期：2012.4.20

  Lewis acid catalyzed quaternary ammonium salt mediated highly regioselective ring-opening of chiral activated aziridines and azetidines with alcohols to nonracemic β- and γ-amino ethers has been developed. The reaction mainly proceeds via an SN2 pathway, and the partial racemization of the starting substrate was effectively controlled by using quaternary ammonium salts. β- and γ-amino ethers are obtained

  已经开发了路易斯酸催化的季铵盐介导的手性活化氮丙啶和氮杂环丁烷与醇的非区域性β-和γ-氨基醚的高度区域选择性开环。该反应主要通过S N 2途径进行，并且通过使用季铵盐有效地控制了起始底物的部分消旋。以高对映体和非对映体特异性（ee最高> 99％，最高99％）获得β-和γ-氨基醚。当将卤代醇用作亲核试剂时，该方法进一步扩展为合成具有高对映体特异性的吗啉及其同系物（ee高达90％）。