methyl (R)-N-(tert-butoxycarbonyl)indoline-2-carboxylate | 158457-36-4

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: methyl (R)-N-(tert-butoxycarbonyl)indoline-2-carboxylate
• 英文别名: methyl (R)-1-t-butoxycarbonyl-indoline-2-carboxylate；1-tert-butyl 2-methylindoline-1,2-dicarboxylate；1-O-tert-butyl 2-O-methyl (2R)-2,3-dihydroindole-1,2-dicarboxylate
• CAS: 158457-36-4
• 化学式: C₁₅H₁₉NO₄
• 分子量: 277.32
• InChiKey: JWTYDRKOSWALHD-GFCCVEGCSA-N

物化性质

• 熔点：
  51.3-52.0 °C
• 沸点：
  362.3±31.0 °C(Predicted)
• 密度：
  1.183±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  20
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  55.8
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  methyl (R)-N-(tert-butoxycarbonyl)indoline-2-carboxylate 在 N-溴代丁二酰亚胺(NBS) 、 异丙基氯化镁 作用下， 以 四氢呋喃 、 N,N-二甲基甲酰胺 为溶剂， 生成
  参考文献：
  名称：

  Total Synthesis of (+)-Benzastatin E via Diastereoselective Grignard Addition to 2-Acylindoline

  摘要：

  [GRAPHICS]A stereoselective total synthesis of (+)-benzastatin E (1) is described. The synthesis involves a diastereoselective Grignard addition to 2-acylindoline 2, which is derived from commercially available (S)-2-indolinecarboxylic acid (3). The unknown absolute configuration of (+)-1 is determined as (9S,10R).

  DOI：

  10.1021/ol027215t
• 作为产物：
  描述：

  1-Boc-吲哚啉 在 仲丁基锂 、 鹰爪豆碱 作用下， 以 乙醚 为溶剂， 反应 6.0h， 生成 methyl (R)-N-(tert-butoxycarbonyl)indoline-2-carboxylate
  参考文献：
  名称：

  Asymmetric Deprotonations:  Lithiation of N-(tert-Butoxycarbonyl)indoline with sec-Butyllithium/(−)-Sparteine

  摘要：

  The asymmetric lithiation of N-Boc indoline (1) with s-BuLi/(-)-sparteine and subsequent substitution provides the 2-substituted N-Boc indolines 3 and 5-11 with excellent enantiomeric ratios and in variable yields. The asymmetric lithiation-substitution sequence with N-Boc-7-chloroindoline (12) provides products 13-19 with good enantiomeric ratios. Mechanistic investigation establishes that the enantioselectivities arise from an initial asymmetric deprotonation to provide the enantioenriched and configurationally stable organolithium intermediates (S)-28 and (S)-29, which react stereoselectively with electrophiles.

  DOI：

  10.1021/jo9708856

文献信息

• METHOD FOR PRODUCING AROMATIC COMPOUND HAVING RING STRUCTURE THAT INCLUDES NITROGEN ATOM OR OXYGEN ATOM
  申请人：Ishihara Kazuaki

  公开号：US20130338371A1

  公开（公告）日：2013-12-19

  The invention is a method for efficiently producing an aromatic compound by an intramolecular cyclization reaction, the aromatic compound having a ring structure that includes a nitrogen atom or oxygen atom. An aromatic compound composed of tert-butyl-2-(3-oxo-3-phenylpropyl)phenyl carbamate or another aniline derivative or the like, or an aromatic compound composed of 3-(1-hydroxynaphthalene-2-yl)propionic acid or another naphthol derivative or the like is made to react in a system to which an oxidizing agent and a quaternary ammonium salt represented by general formula (1) are fed. In the formula, X is an iodine atom; and R 1 , R 2 , R 3 and R 4 are each independently a C 1-30 hydrocarbon group in which some hydrogen atoms are optionally substituted with halogen atoms, or R 1 and R 2 may be combine to form a divalent organic group bonded to a nitrogen atom, and R 3 and R 4 may combine to form a divalent organic group bonded to a nitrogen atom.

  该发明是一种通过分子内环化反应高效生产含有环结构的芳香化合物的方法，所述芳香化合物具有包含氮原子或氧原子的环结构。将由叔丁基-2-(3-氧代-3-苯基丙基)苯基氨基甲酸酯或其他苯胺衍生物等组成的芳香化合物，或者由3-(1-羟基萘基)丙酸或其他萘酚衍生物等组成的芳香化合物，在供应有氧化剂和由通式(1)代表的季铵盐的体系中反应。在该式中，X是碘原子；R1、R2、R3和R4分别独立地是C1-30烃基，其中一些氢原子可以选择性地被卤素原子取代，或者R1和R2可以结合形成与氮原子结合的二价有机基，R3和R4可以结合形成与氮原子结合的二价有机基。
• Ruthenium-Catalyzed Asymmetric Hydrogenation of <i>N</i>-Boc-Indoles
  作者：Ryoichi Kuwano、Manabu Kashiwabara

  DOI：10.1021/ol061039x

  日期：2006.6.1

  enantioselective hydrogenation of various N-Boc-indoles proceeded successfully in the presence of the ruthenium complex generated from an appropriate ruthenium precursor and a trans-chelate chiral bisphosphine PhTRAP. Various 2- or 3-substituted indoles were converted into chiral indolines with high enantiomeric excesses (up to 95% ee). The PhTRAP-ruthenium catalyst was able to promote the hydrogenation of 2,3-dimethylindoles

  在适当的钌前体和反式螯合手性双膦PhTRAP生成的钌络合物存在下，成功进行了各种N-Boc-吲哚的高度对映选择性氢化。各种2-或3-取代的吲哚被转化为具有高对映体过量（至多95％ee）的手性二氢吲哚。PhTRAP-钌催化剂能够促进2，3-二甲基吲哚的氢化，得到具有72％ee的顺式2,3-二甲基二氢吲哚。
• Both Enantiomers of<i>N</i>-Boc-indoline-2-carboxylic Esters
  作者：Masayuki Kurokawa、Takeshi Sugai

  DOI：10.1246/bcsj.77.1021

  日期：2004.5

  An immobilized form of Candida antarctica lipase (Chirazyme L-2) catalyzed enantioselective hydrolysis (E > 1000) of N-Boc-indoline-2-carboxylic acid methyl ester. The reaction proceeded efficiently at 60 °C, a temperature over the melting point of substrate, in the conversion of 49.9% to provide the hydrolyzed product, (S)-carboxylic acid with >99.9% ee and the unreacted (R)-ester with 99.6% ee. A newly developed expeditious route to the racemic substrate (a total of six steps, 60% yield), starting from aniline and ethyl α-methylacetoacetate, established the scalable chemo-enzymatic synthesis of the desired compounds in both enantiomerically pure forms.

  一种固定化的南极酵母脂肪酶（Chirazyme L-2）催化了N-Boc-吲哚-2-羧酸甲酯的对映选择性水解（E > 1000）。反应在60 °C的温度下高效进行，该温度超过了底物的熔点，反应转化率为49.9%，生成了水解产物(S)-羧酸，其对映体过量纯度（ee）超过99.9%，以及未反应的(R)-酯，其ee为99.6%。从苯胺和乙基α-甲基乙酰乙酸酯出发开发的新型快速路线（共六步，产率60%）建立了所需化合物的可扩展的化学-酶法合成，既可以获得对映体纯度较高的形式。
• Asymmetric hydrogenation of 2-substituted N-protected-indoles catalyzed by rhodium complexes of BINOL-derived phosphoramidites
  作者：Nataša Mršić、Thomas Jerphagnon、Adriaan J. Minnaard、Ben L. Feringa、Johannes G. de Vries

  DOI：10.1016/j.tetasy.2009.11.017

  日期：2010.1

  The rhodium-catalyzed asymmetric hydrogenation of 2-substituted N-protected-indoles using monodentate phosphoramidites as ligands was examined. Full conversion and 74% ee, were obtained with a catalyst based on PipPhos. The use of a catalytic amount of base is necessary for activity; best results were obtained with Cs2CO3.

  研究了使用单齿亚磷酰胺作为配体的铑催化的2-取代的N-保护的吲哚的不对称氢化。用基于PipPhos的催化剂获得完全转化和74％ee。为了活性，必须使用催化量的碱。Cs 2 CO 3可获得最佳结果。
• Catalytic Asymmetric Hydrogenation of Heteroaromatic Compounds, Indoles
  作者：Ryoichi Kuwano、Koji Sato、Takashi Kurokawa、Daisuke Karube、Yoshihiko Ito

  DOI：10.1021/ja001271c

  日期：2000.8.1