2-tolualdehyde N-Cbz imine | 1092775-02-4

• 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: 2-tolualdehyde N-Cbz imine
• 英文别名: benzyl N-[(2-methylphenyl)methylidene]carbamate
• CAS: 1092775-02-4
• 化学式: C₁₆H₁₅NO₂
• 分子量: 253.301
• InChiKey: IBCYCTYAEUTTDR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  19
• 可旋转键数：
  4
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  38.7
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-tolualdehyde N-Cbz imine 、 乙酰丙酮 在 (R)-1,1'-binaphthyl-2,2'-disulfonic acid di(2,6-diphenylpyridine) salt magnesium sulfate 作用下， 以 二氯甲烷 为溶剂， 反应 1.5h， 以99%的产率得到
  参考文献：
  名称：

  EP2208722

  摘要：

  公开号：
• 作为产物：
  描述：

  benzyl phenylsulfonyl(o-tolyl)methylcarbamate 在 potassium carbonate 作用下， 以 二氯甲烷 为溶剂， 以100%的产率得到2-tolualdehyde N-Cbz imine
  参考文献：
  名称：

  Diastereo- and Enantioselective Addition of Anilide-Functionalized Allenoates to N-Acylimines Catalyzed by a Pyridylalanine-Based Peptide

  摘要：

  A selective peptide-catalyzed addition of allenic esters to N-acylimines is reported. Tetrasubstituted allenes were achieved with up to 42:1 diastereomeric ratio and 94:6 enantiomeric ratio (up to 99:1 er after recrystallization of the major diastereomer). An exploration of the role of individual amino acids within the peptide was undertaken. The scope of the reaction was explored and revealed heightened reactivity with thioester-containing allenes. A mechanistic framework that may account for the observed reactivity is also described.

  DOI：

  10.1021/ja412996f

文献信息

• Pyridinium 1,1′-Binaphthyl-2,2′-disulfonates as Highly Effective Chiral Brønsted Acid−Base Combined Salt Catalysts for Enantioselective Mannich-Type Reaction
  作者：Manabu Hatano、Toshikatsu Maki、Katsuhiko Moriyama、Manabu Arinobe、Kazuaki Ishihara

  DOI：10.1021/ja806875c

  日期：2008.12.17

  established, for the first time, a practical synthesis of chiral 1,1'-binaphthyl-2,2'-disulfonic acid (BINSA 1) from inexpensive BINOL. An efficient enantioselective catalysis in the Mannich-type reactions of diketones and ketoester equivalents with aldimines was developed using chiral 1-achiral 2,6-diarylpyridine (2) combined salts, which acted as convenient chiral tailor-made Brønsted acid-base organocatalysts

  我们首次从廉价的 BINOL 建立了手性 1,1'-联萘-2,2'-二磺酸 (BINSA 1) 的实用合成方法。使用手性 1-非手性 2,6-二芳基吡啶 (2) 化合盐开发了二酮和酮酯等价物与醛亚胺的曼尼希型反应中的高效对映选择性催化，其作为方便的手性定制 Brønsted 酸碱原位有机催化剂.
• Highly Practical BINOL-Derived Acid-Base Combined Salt Catalysts for the Asymmetric Direct Mannich-Type Reaction
  作者：Kazuaki Ishihara、Manabu Hatano

  DOI：10.1055/s-0030-1258296

  日期：2010.11

  salt catalysts for asymmetric reactions, we developed a series of simple, practical, chiral BINOL-derived salt catalysts, such as chiral pyridinium 1,1′-binaphthyl-2,2′-disulfonates 1, chiral lithium(I) binaphtholate 2, chiral magnesium(II) binaphtholate (3), chiral calcium(II) phosphate 4, and chiral phosphoric acid 5, which were particularly effective for direct Mannich-type reactions. 1 Introduction

  亚胺和1，3-二羰基化合物之间的催化不对称直接曼尼希型反应是有机化学中最重要的碳-碳键形成反应之一。所得的曼尼希加合物可以有效地转化为药学上有用的旋光性β-氨基酮，β-氨基酯，β-内酰胺等。在我们研究用于不对称反应的手性酸-碱结合盐催化剂的过程中，我们开发了一系列简单，实用的手性BINOL衍生的盐催化剂，例如手性吡啶鎓1,1'-联萘-2,2'-二磺酸盐1，手性联萘甲酸锂（I）2，手性联萘甲酸镁（II）（3） ，手性磷酸钙（II）4和手性磷酸5，对直接曼尼希型反应特别有效。 1引言 2 1,1'-联萘-2,2'-二磺酸（BINSA）-吡啶鎓盐 3萘甲酸锂（I）盐 4萘甲酸镁（II）盐 5磷酸钙（II）盐和手性磷酸 6。结论 酸碱复合盐催化剂-亚胺-不对称催化-1,3-二羰基化合物-直接曼尼希型反应
• Chiral Dinuclear Benzyliminobinaphthoxy‐Palladium Catalyst for Asymmetric Mannich Reaction of Aldimines and Isatin‐Derived Ketimines with Alkylmalononitriles
  作者：Ayu Nakamura、Satoru Kuwano、Junchuan Sun、Kensuke Araseki、Eri Ogino、Takayoshi Arai

  DOI：10.1002/adsc.202000447

  日期：2020.8.4

  A newly developed dinuclear bis(benzylimino)binaphthol (BIB )−Pd complex showed good catalytic activity for the Mannich reaction of aldimines and isatin‐derived ketimines with alkylmalononitriles to give the products in a highly enantioselective manner.

  一种新开发的双核双（苄基亚氨基）联萘酚（BIB）-Pd络合物对醛亚胺和源自靛红的酮亚胺与烷基丙二腈的曼尼希反应具有良好的催化活性，从而以高度对映选择性的方式提供了产物。
• Asymmetric Trisubstituted Aziridination of Aldimines and Ketimines using N-α-Diazoacyl Camphorsultams
  作者：Takuya Hashimoto、Hiroki Nakatsu、Kumiko Yamamoto、Shogo Watanabe、Keiji Maruoka

  DOI：10.1002/asia.201000604

  日期：2011.2.1

  The acid‐catalyzed reaction of diazoacetates and aldimines (Brookhart–Templeton aziridination) is now recognized as a reliable method to provide enantiomerically enriched disubstituted aziridines, thus owing to the development of asymmetric catalysis. However, the extension of this method to prepare trisubstituted aziridines has not been explored to date, even for racemic products. In this context

  现已认识到重氮乙酸盐和醛亚胺的酸催化反应（布鲁克哈特-特姆普尔顿叠氮化）是提供对映异构体富集的二取代氮丙啶的可靠方法，因此由于发展了不对称催化作用。然而，迄今为止，甚至对于外消旋产品，尚未探索将该方法扩展为制备三取代氮丙啶的方法。在这种情况下，考虑到它们的综合重要性以及缺乏替代的直接合成方法，我们最近启动了一个程序来实现这一未满足的挑战。本文中，我们报告了一项详细的研究，该研究以N -α-重氮酰基樟脑为主要成分，从而为各种三取代的氮丙啶建立了高度立体选择性的合成方法。
• Enantioselective Hydrocyanation of <i>N</i>-Protected Aldimines
  作者：Masato Uemura、Nobuhito Kurono、Takeshi Ohkuma

  DOI：10.1021/ol203408w

  日期：2012.2.3

  Enantioselective hydrocyanation of N-benzyloxycarbonyl aldimines catalyzed by a Ru[(S)-phgly](2)[(S)-binap]/C6H5OLi system or a bimetallic complex [LiRu[(S)-phgly](2)[(S)-binap]}]Cl affords the amino nitriles in 92-99% ee. The reaction is carried out in tert-C4H9OCH3 with a substrate-to-catalyst molar ratio in the range of 500-5000 at -20 to 0 degrees C. Primary, secondary, and tertiary alkyl imines as well as the aryl and heteroaryl substrates are smoothly cyanated to produce the desired products in high yield.