(1S)-[1-[(diphenylphosphino)methyl]-2-methylpropyl]carbamic acid 1,1-dimethylethyl ester | 146476-35-9

• 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: (1S)-[1-[(diphenylphosphino)methyl]-2-methylpropyl]carbamic acid 1,1-dimethylethyl ester
• 英文别名: (S)-tert-butyl (1-(diphenylphosphino)-3-methylbutan-2-yl)carbamate；tert-butyl N-[(2S)-1-diphenylphosphanyl-3-methylbutan-2-yl]carbamate
• CAS: 146476-35-9
• 化学式: C₂₂H₃₀NO₂P
• 分子量: 371.459
• InChiKey: BIMQNJOVDDUOFL-HXUWFJFHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  26
• 可旋转键数：
  8
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  38.3
• 氢给体数：
  1
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  (1S)-[1-[(diphenylphosphino)methyl]-2-methylpropyl]carbamic acid 1,1-dimethylethyl ester 在 三乙胺 、 三氟乙酸 作用下， 以 二氯甲烷 为溶剂， 反应 4.0h， 生成 <(2S)-3-methyl-2-(trifluoromethylsulfonylamino)butyl>diphenylphosphino
  参考文献：
  名称：

  Synthesis of (.BETA.-N-Sulfonylaminoalkyl)phosphines and Their Use in Palladium-Mediated Asymmetric Synthesis.

  摘要：

  开发了一系列（β-N-磺酰氨基烷基）膦配体，并用于不对称钯催化的氢硅化和Heck类型的氢芳基化，获得了高达72%的光学纯度和90%的产率。

  DOI：

  10.1248/cpb.43.927
• 作为产物：
  描述：

  (S)-N-tert-butoxycarbonyl-2-amino-3-methylbutyl-1-diphenylphosphine-borane 在 三乙烯二胺 作用下， 以 甲苯 为溶剂， 反应 12.0h， 以97%的产率得到(1S)-[1-[(diphenylphosphino)methyl]-2-methylpropyl]carbamic acid 1,1-dimethylethyl ester
  参考文献：
  名称：

  Investigation of the importance of nitrogen substituents in a N–P chiral ligand for enantioselective allylic alkylation

  摘要：

  The synthesis of three chiral chelate nitrogen-phosphorus (S)-valine derived ligands with the potential fur stereogenic nitrogen donation is described. In palladium catalysed allylic substitution reactions the ligands induced varying enantioselectivities ranging From 92%, e.e. of the (R)-enantiomer to 83% e.e. of the (S)-enantiomer. Structural and spectroscopic investigations into the origin of this effect were conducted, but were inconclusive. However, the importance of the consideration of N-substituents in such systems is highlighted. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0957-4166(01)00137-9

文献信息

• Catalytic Asymmetric [4+2] Annulation Initiated by an Aza-Rauhut-Currier Reaction: Facile Entry to Highly Functionalized Tetrahydropyridines
  作者：Zugui Shi、Peiyuan Yu、Teck-Peng Loh、Guofu Zhong

  DOI：10.1002/anie.201203316

  日期：2012.7.27

  Under control: The first example of chiral amino phosphine catalysts for the title reaction between vinyl ketones and N‐sulfonyl‐1‐aza‐1,3‐dienes has been developed. Under ambient conditions, this protocol provides straightforward access to densely functionalized, enantioenriched tetrahydropyridines with high levels of sterecontrol in good to excellent yields.

  下控制：手性氨基膦催化剂乙烯基酮类之间的反应标题的第一个例子Ñ磺酰基-1-氮杂-1,3-二烯已经研制成功。在环境条件下，该方案可提供对高功能性，对映体富集的对映体富集的四氢吡啶类化合物的直接访问，并具有高水平的立体异构控制，产率高至优异。
• Tunable Bifunctional Phosphine-Squaramide Promoted Morita-Baylis-Hillman Reaction of<i>N</i>-Alkyl Isatins with Acrylates
  作者：Ze Dong、Chao Yan、Yongzhi Gao、Chune Dong、Guofu Qiu、Hai-Bing Zhou

  DOI：10.1002/adsc.201500110

  日期：2015.6.15

  was applied successfully in the synthesis of chiral cyclic spiropyrrolizidineoxindole and γ‐butyrolactone derivatives without enantioselectivity deterioration. The possible mechanism of this MBH reaction was also investigated by 31P NMR, ESI‐MS and KIE studies. The KIE experiments show that the electrophilic addition of N‐methyl isatin to the complex of acrylate ester and phophine‐squaramide is the rate‐determing

  从廉价且可商购的β-氨基醇中以中等收率合成了一系列高度可调的双功能膦-方酸-甲酰胺H键供体有机催化剂6。催化剂6 F可有效地促进的不对称森田-的Baylis-希尔曼（MBH）反应ñ -烷基靛红与丙烯酸酯在提供良好的产率和对映选择性（高达93％的产率和手性3-取代的3-羟基-2-羟吲哚95％ee），其中具有挑战性的丙烯酸叔丁酯9 d提供了最佳ee迄今为止的价值。此外，该方法已成功地用于手性环状螺吡咯并咪唑恶唑和γ-丁内酯衍生物的合成，而对映选择性不降低。MBH反应的可能机理还通过31 P NMR，ESI-MS和KIE研究进行了研究。KIE实验表明，在丙烯酸酯和膦-方酸酰胺的配合物中亲电添加N-甲基伊斯廷丁是不对称MBH反应的决定速率的步骤。
• Synthesis of Iron P-N-P′ and P-NH-P′ Asymmetric Hydrogenation Catalysts
  作者：Jessica F. Sonnenberg、Alan J. Lough、Robert H. Morris

  DOI：10.1021/om5008083

  日期：2014.11.24

  precatalysts for the asymmetric direct hydrogenation of ketones and imines. Employing related ligand scaffolds, we successfully generated and tested the series of three new precatalysts [Fe(PCy2CH2CH═NCH(R)CH2PPh2)(CO)2Br]BF4 with chirality derived from (S)-amino alcohols with phenyl, benzyl, and isopropyl substituents (R), yielding fairly active and selective systems. For the reduction of acetophenone to (S)-1-phenylethanol

  已知类型为mer，反式-[Fe（PNP'）（CO）2 Br] BF 4的配合物是酮和亚胺不对称直接加氢的前催化剂。采用相关配体的支架，我们成功地产生并测试了一系列的三个新的预催化剂的[Fe（PCY 2 CH 2 CH = NCH（R）CH 2 PPH 2）（CO）2 BR] BF 4与手性从（派生小号） -具有苯基，苄基和异丙基取代基（R）的氨基醇，可产生相当活泼和选择性的系统。用于将苯乙酮还原为（S）-1-苯基乙醇的周转频率长达920小时在50°C和5-25 atm的H 2下，获得了–1和高达74％的对映体过量。然而，我们发现，将这些大的基团R置于氮旁边被发现对催化活性有害。为了扩展配体结构的范围，我们从邻二苯基膦基苯甲醛和膦胺PPh 2 CHR 1 CHR 2 NH 2（R 1 = H，Ph ，CH 2 PH，用的iPr - [R 2 = H或R 1 = Me中，pH值- [R 2 =
• The Palladium-catalyzed Asymmetric Allylations of Chiral Hydrazones Bearing Phosphine Groups. Stereoelectronic Effects of Allylating Reagents on Asymmetric Induction
  作者：Kunio Hiroi、Mitsuhiro Haraguchi、Yoko Masuda、Jun Abe

  DOI：10.1246/cl.1992.2409

  日期：1992.12

  palladium-catalyzed allylations of chiral hydrazones bearing phosphine groups were executed successfully under neutral reaction conditions with various allylating reagents, affording optically active α-allyl carbonyl compounds. The systematic and stereochemical investigation of these reactions shows that the intramolecularly-substituted phosphine groups served as chiral ligands and the anionic counterparts

  在中性反应条件下，用各种烯丙基化试剂成功地进行了钯催化的带有膦基团的手性腙的烯丙基化反应，得到了具有旋光活性的α-烯丙基羰基化合物。这些反应的系统和立体化学研究表明，分子内取代的膦基团作为手性配体，烯丙基化试剂中的阴离子对应物对不对称诱导具有显着的立体电子效应。
• Enantioselective Morita–Baylis–Hillman reaction promoted by l-threonine-derived phosphine–thiourea catalysts
  作者：Xiaoyu Han、Youqing Wang、Fangrui Zhong、Yixin Lu

  DOI：10.1039/c1ob05881a

  日期：——

  A series of bifunctional phosphine–thiourea organic catalysts based on natural amino acid scaffolds were designed and prepared. L-Threonine-derived bifunctional phosphine catalysts were found to be very efficient in promoting asymmetric Morita–Baylis–Hillman (MBH) reaction of acrylates with aromatic aldehydes, affording the desired MBH adducts with up to 90% ee. To gain mechanistic insights into the reaction, the effects of adding various additives on the MBH reaction were investigated. We propose that the hydrogen bonding interactions between the thiourea moiety of the catalyst and the enolate intermediate are crucial for the stereochemical outcome of the reaction. The method described in this report may provide a practical solution to the enantioselective MBH reaction of simple acrylates.

  我们设计并制备了一系列基于天然氨基酸支架的双功能膦硫脲有机催化剂。研究发现，L-苏氨酸衍生的双功能膦催化剂在促进丙烯酸酯与芳香醛的不对称莫里塔-贝利斯-希尔曼（MBH）反应方面非常有效，可以得到所需的 MBH 加合物，ee 值高达 90%。为了深入了解该反应的机理，我们研究了添加各种添加剂对 MBH 反应的影响。我们认为，催化剂的硫脲分子与烯醇中间体之间的氢键相互作用对反应的立体化学结果至关重要。本报告所述方法可为简单丙烯酸酯的对映选择性 MBH 反应提供实用的解决方案。