tert-butyl N-[(1S)-1-methyl-2-oxo-2-(4-toluidino)ethyl]carbamate | 372187-66-1

• 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: tert-butyl N-[(1S)-1-methyl-2-oxo-2-(4-toluidino)ethyl]carbamate
• 英文别名: (S)-tert-butyl (1-oxo-1-(p-tolylamino)propan-2-yl)carbamate；tert-butyl N-[(2S)-1-(4-methylanilino)-1-oxopropan-2-yl]carbamate
• CAS: 372187-66-1
• 化学式: C₁₅H₂₂N₂O₃
• 分子量: 278.351
• InChiKey: KBIJTBDQWRCSCQ-NSHDSACASA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.6
• 重原子数：
  20
• 可旋转键数：
  5
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  67.4
• 氢给体数：
  2
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  tert-butyl N-[(1S)-1-methyl-2-oxo-2-(4-toluidino)ethyl]carbamate 在 盐酸 作用下， 以 乙酸乙酯 为溶剂， 以81%的产率得到(2S)-2-amino-N-(4-methylphenyl)propanamide
  参考文献：
  名称：

  Syntheses of Optically Active Tetrahydro-1H-pyrrolo[1,2-a]imidazol-2-ones and Hexahydroimidazo[1,2-a]pyridin-2(3H)-ones

  摘要：

  The reactions of (2S)-2-amino-2-substituted-N-(4-nitrophenyl)acetamides 16a-c, succindialdehyde (13), and benzotriazole afforded enantiopure (3S,5R,7aR)-5-(1H-1,2,3-benzotriazol-1-yl)-3-substituted1-(4-nitrophenyl)tetrahydro-1H-pyrrolo[1,2-a]imidazol-2-ones 17a-c, which were converted by sodium borohydride into (3S,7aR)-3-substituted-1-(4-nitrophenyl)tetrahydro-1H-pyrrolo[1,2-a]imidazol-2-ones 18a-c. Chiral (2S)-2-amino-2-substituted-N-(4-methylphenyl)acetamides 12a-d, easily prepared in two steps from N-Boc-alpha-amino acids 10a-d, similarly reacted with glutaraldehyde (20) and benzotriazole to generate 5-benzotriazolyl-3-substituted-hexahydroimidazo[1,2-a]pyridin2(3H)-ones 21a-d, which were converted by sodium borohydride directly into optically active 3-substituted-hexahydroimidazo[1,2-a]pyridin-2(3H)-ones 22a-d.

  DOI：

  10.1021/jo010842w
• 作为产物：
  描述：

  N-叔丁氧羰基-L-丙氨酸 、 乙烷,三氯氟- 在 N-甲基吗啉 、 氯甲酸异丁酯 作用下， 以 四氢呋喃 为溶剂， 反应 16.25h， 以49%的产率得到tert-butyl N-[(1S)-1-methyl-2-oxo-2-(4-toluidino)ethyl]carbamate
  参考文献：
  名称：

  可见光介导的催化作用使仲胺脱氢和α-官能化。

  摘要：

  已经描述了可见光介导的胺脱氢方法。给定的方案显示了广泛的底物范围，温和的反应条件和出色的结果，而无需繁琐的纯化。通过可见光和路易斯酸催化的协同作用，该方法可用于仲胺与各种亲核试剂的一锅功能化中，从而导致生物活性分子的结构变化的基本组成部分。此外，斯特恩-沃尔默（Stern-Volmer）的研究和淬灭实验揭示了催化剂的作用，并提出了这种转化的机理。

  DOI：

  10.1039/c9ob02699a

文献信息

• Convenient Syntheses of Unsymmetrical Imidazolidines
  作者：Alan R. Katritzky、Kazuyuki Suzuki、Hai-Ying He

  DOI：10.1021/jo010868n

  日期：2002.5.1

  Unsymmetrical imidazolidines 10-14, optically active imidazolidines 20-22, and 2,3-dihydro-1H-benzimidazoles 28 and 29 were synthesized in good to excellent yields by Mannich reactions of 1,2-ethanediamines 8a-c, 18a-c, or N-methyl-1,2-benzenediamine (26a) with benzotriazole and formaldehyde, followed by the nucleophilic substitution of the benzotriazolyl group with C-nucleophiles (Grignard reagents

  通过1，2-乙二胺8a-c，18a-c，1，2-乙二胺的曼尼希反应以良好至极好的收率合成不对称咪唑烷10-14，光学活性咪唑烷20-22以及2,3-二氢-1H-苯并咪唑28和29。或N-甲基-1,2-苯二胺（26a）与苯并三唑和甲醛，然后用C-亲核试剂（格氏试剂，氰化钠），S-亲核试剂（苯硫醇）和P亲核取代苯并三唑基-亲核试剂（亚磷酸三乙酯）。
• Stereoselective syntheses of 1H-imidazo[2,1-a]isoindole-2,5(3H,9bH)-diones†
  作者：Alan R. Katritzky、Yong-Jiang Xu、Hai-Ying He、Peter J. Steel

  DOI：10.1039/b104060j

  日期：——

  1H-Imidazo[2,1-a]isoindole-2,5(3H,9bH)-diones 6a–i are synthesized in 67–96% yields with high stereoselectivities (de 88–99%, except 6e with a 58% de value) via intermolecular condensation of 2-formylbenzoic acid (5) and α-amino amides 4a–i in the presence of a catalytic amount of toluene-p-sulfonic acid. Intermediates 4 are obtained in two steps from easily available chiral N-Boc-α-amino acids 1.

  1H-咪唑[2,1-a]异苯二酮-2,5(3H,9bH)-二酮 6a–i 的合成产率为67–96%，且具有较高的立体选择性（选择性过量为88–99%，除6e外其选择性过量为58%），通过在催化量的对甲苯磺酸存在下，对2-甲酰苯甲酸（5）和α-氨基酰胺4a–i进行分子间缩合反应而实现。中间体4通过两步反应从易得的手性N-Boc-α-氨基酸1中获得。
• Synthesis of hydantoins from <i>N</i><scp>‐Boc</scp> protected amino acid derived amides using polymer‐supported <scp>PPh₃</scp>/<scp>CBr₄</scp> as a reagent
  作者：Gordana Tasic、Nikola Mitrovic、Milena Simic、Mladen Koravovic、Predrag Jovanovic、Milos Petkovic、Milos Jovanovic、Branka Ivkovic、Vladimir Savic

  DOI：10.1002/jhet.4802

  日期：2024.5

  Hydantoin derivatives are versatile structural motifs found in natural products and various compounds with different biological or other properties. Due to their importance in both organic and medicinal chemistry, a number of synthetic procedures have been developed. In this article, a novel methodology utilizing N-Boc protected amino acid amides for their preparation has been described. The cyclisation

  乙内酰脲衍生物是在天然产物和具有不同生物或其他特性的各种化合物中发现的多功能结构基序。由于它们在有机化学和药物化学中的重要性，已经开发了许多合成程序。在本文中，描述了一种利用N -Boc 保护的氨基酸酰胺进行制备的新方法。使用固体支持的 PPh 3和 CBr 4作为试剂完成环化过程，以中等至良好的产率 (40%–77%) 提供取代的乙内酰脲。
• Proline-based dipeptides with two amide units as organocatalyst for the asymmetric aldol reaction of cyclohexanone with aldehydes
  作者：Fubin Chen、Shi Huang、Hui Zhang、Fengying Liu、Yungui Peng

  DOI：10.1016/j.tet.2008.07.051

  日期：2008.9

  A series of proline-based dipeptide organocatalysts with two amide units (1-16) have been developed and evaluated in the direct catalytic asymmetric aldol reactions of aldehydes with cyclohexanone. These catalysts showed good solubility in organic solvents compared with their corresponding carboxyl terminal dipeptides. The robust amide bond formation allowed structural modifications and fine tuning of catalyst properties by varying the stereo and electronic effects of the terminal amide to affect the ability of hydrogen bonding formation between the catalysts and the substrates. The reactions proceeded smoothly in high yields (up to 99%), enantioselectivities (up to 98% ee) and anti-diastereoselectivities (up to 99:1) in the presence of bifunctional organocatalyst 4 under the optimal reaction conditions. (C) 2008 Elsevier Ltd, All rights reserved.
• Stereoselective syntheses of chiral (3S,9bS)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones
  作者：Alan R. Katritzky、Hai-Ying He、Akhilesh K. Verma

  DOI：10.1016/s0957-4166(02)00220-3

  日期：2002.6

  Chiral (3S,9bS)-1,2,3,9b-tetrahydro-5H-imidazo[2,1-a]isoindol-5-ones 11a-11f, 14b.14c and 17a,b were prepared in 78-93% yields with high stereoselectivities (d.e. >99%) by the intermolecular condensations of 2-formylbenzoic acids 10 or 13 or 2-acetylbenzoic acid 15 with chiral diamines 9a-9f and 9h. Compounds 9a-9f and 9h were readily prepared in three steps from optically active N-Boc-alpha-amino acids 5a-5d. (C) 2002 Elsevier Science Ltd. All rights reserved.