tert-butyl (E)-2-((4-methoxyphenyl)imino)acetate | 909248-60-8

• 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: tert-butyl (E)-2-((4-methoxyphenyl)imino)acetate
• CAS: 909248-60-8
• 化学式: C₁₃H₁₇NO₃
• 分子量: 235.283
• InChiKey: FQVHFTILSSJEOZ-NTEUORMPSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.74
• 重原子数：
  17.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  47.89
• 氢给体数：
  0.0
• 氢受体数：
  4.0

反应信息

• 作为反应物：
  描述：

  tert-butyl (E)-2-((4-methoxyphenyl)imino)acetate 、 丙炔醛 在 L-脯氨酸 、 叠氮基三甲基硅烷 、 三氟化硼乙醚 作用下， 以 1,4-二氧六环 为溶剂， 反应 49.0h， 以48%的产率得到(2S,3S,4R)-tert-butyl 4-azido-6-methoxy-3-methyl-1,2,3,4-tetrahydroquinoline-2-carboxylate
  参考文献：
  名称：

  扩展四氢喹啉三维空间以开发 BET 溴结构域抑制剂的对映选择性方法**

  摘要：

  简单而有选择性。通过脯氨酸有机催化结合在同一烧瓶中添加 BF 3  ⋅ OEt 2来组装简单的官能团，可以温和地形成氮杂邻苯二酚甲基化物物种，这些物质会经历亲核加成，从而获得富含对映体的三取代四氢喹啉新颖的配置。这种先进的三维结构，仅经过两个额外的步骤，就产生了一种有价值的对映纯和选择性抗炎化合物。

  DOI：

  10.1002/chem.202202293
• 作为产物：
  描述：

  2-(4-甲氧基苯基氨基)乙酸叔丁酯 在 manganese(IV) oxide 作用下， 以 二氯甲烷 为溶剂， 反应 1.0h， 以98%的产率得到tert-butyl (E)-2-((4-methoxyphenyl)imino)acetate
  参考文献：
  名称：

  制备α-氨基羧酸衍生物的简便方法及其在非天然α-氨基酸衍生物的不对称合成中的应用。

  摘要：

  我们在本文中描述了锰（IV）介导的Np-甲氧基苯基（PMP）保护的甘氨酸衍生物的氧化，用于合成α-亚氨基羧酸衍生物。使用这种方法，避免了不稳定的乙二酸衍生物的利用。此外，使用这种方法，我们合成了新型的α-亚氨基羧酸衍生物，例如α-亚氨基苯基酯，全氟烷基酯，酰亚胺和硫代酯。还描述了这些新型亚胺衍生物与1,3-二羰基化合物的不对称曼尼希反应，与使用常规α-亚氨基酯型底物相比，新型α-亚氨基酰亚胺具有更高的化学收率和立体选择性。 。

  DOI：

  10.1248/cpb.c17-00158

文献信息

• TRANS-3,5-DISUBSTITUTEDPYRROLIDINE: ORGANOCATALYST FOR anti-MANNICH REACTIONS
  申请人：Tanaka Fujie

  公开号：US20070117986A1

  公开（公告）日：2007-05-24

  A compound of Formula I is disclosed, in which R is a substituent containing a hydrogen bond-forming atom within three atoms from the ring carbon to which the substituent is bonded; X is CH 2 , O, S or NR 1 , wherein R 1 is a hydrocarbyl group or an amino-protecting group having one to about 18 carbon atoms; R 2 is hydrido or a hydrocarbyl group containing one to about twelve carbon atoms; and R 3 is hydrido or methyl, but both R 2 and R 3 are not hydrido when X is CH 2 A molecule of Formula I and those in which R 2 and R 3 can both be hydrido (Formula X) functions as a catalyst in a Mannich reaction to asymmetrically form β-aminoaldehyde or β-aminoketone diastereomeric products having two chiral centers on adjacent carbon atoms and in which the anti-diastereomers are in excess over the syn-diastereomers. Methods for carrying out those syntheses are also disclosed.

  披露了一种公式I的化合物，其中R是含有一个在距离与亚基连接的环碳三个原子以内的氢键形成原子的取代基；X是CH2，O，S或NR1，其中R1是一个含有一个到约18个碳原子的烃基团或一个氨基保护基团；R2是氢化物或含有一个到约十二个碳原子的烃基团；R3是氢化物或甲基，但是当X是 时，R2和R3不能都是氢化物。公式I的分子以及其中R2和R3都可以是氢化物（公式X）的分子，在曼尼希反应中作为催化剂，非对称地形成具有相邻碳原子上的两个手性中心的β-氨基醛或β-氨基酮对映异构体产品，并且反式对映异构体过剩于顺式对映异构体。还披露了进行那些合成的方法。
• <i>anti</i>-Selective Direct Asymmetric Mannich Reactions Catalyzed by Axially Chiral Amino Sulfonamide as an Organocatalyst
  作者：Taichi Kano、Yukako Yamaguchi、Osamu Tokuda、Keiji Maruoka

  DOI：10.1021/ja056008w

  日期：2005.11.30

  A direct asymmetric Mannich reaction using a novel axially chiral amino trifluoromethanesulfonamide (S)-3 has been developed in highly anti-selective and enantioselective manners. Thus, in the presence of a catalytic amount of (S)-3, the reactions between aldehydes and the alpha-imino ester 4 proceed smoothly to give the functional beta-amino aldehydes with significantly higher anti/syn ratio and enantioselectivity

  已经以高度抗选择性和对映选择性方式开发了使用新型轴向手性氨基三氟甲磺酰胺 (S)-3 的直接不对称曼尼希反应。因此，在催化量的 (S)-3 存在下，醛和 α-亚氨基酯 4 之间的反应顺利进行，得到具有比以前可能更高的反/顺比和对映选择性的功能性 β-氨基醛。
• Aerobic Asymmetric Dehydrogenative Cross‐Coupling between Two CH Groups Catalyzed by a Chiral‐at‐Metal Rhodium Complex
  作者：Yuqi Tan、Wei Yuan、Lei Gong、Eric Meggers

  DOI：10.1002/anie.201506273

  日期：2015.10.26

  A sustainable CC bond formation is merged with the catalytic asymmetric generation of one or two stereocenters. The introduced catalytic asymmetric cross‐coupling of two CH groups with molecular oxygen as the oxidant profits from the oxidative robustness of a chiral‐at‐metal rhodium(III) catalyst and exploits an autoxidation mechanism or visible‐light photosensitized oxidation. In the latter case

  可持续的CC键形成与一个或两个立体中心的催化不对称生成合并。引入的两个CH基团与分子氧作为氧化剂的催化不对称交叉偶联得益于手性金属铑（III）催化剂的氧化稳健性，并利用了自氧化机制或可见光光敏氧化。在后一种情况下，该催化剂具有双重功能，即作为手性路易斯酸，用于催化对映选择性烯酸酯化学，同时还用作可见光驱动的光氧化还原催化剂。
• Catalysis of 3-Pyrrolidinecarboxylic Acid and Related Pyrrolidine Derivatives in Enantioselective <i>anti</i>-Mannich-Type Reactions:  Importance of the 3-Acid Group on Pyrrolidine for Stereocontrol
  作者：Haile Zhang、Susumu Mitsumori、Naoto Utsumi、Masanori Imai、Noemi Garcia-Delgado、Maria Mifsud、Klaus Albertshofer、Paul Ha-Yeon Cheong、K. N. Houk、Fujie Tanaka、Carlos F. Barbas

  DOI：10.1021/ja074907+

  日期：2008.1.1

  The development of enantioselective anti-selective Mannich-type reactions of aldehydes and ketones with imines catalyzed by 3-pyrrolidinecarboxylic acid and related pyrrolidine derivatives is reported in detail. Both (3R,5R)-5-methyl-3-pyrrolidinecarboxylic acid and (R)-3-pyrrolidinecarboxylic acid efficiently catalyzed the reactions of aldehydes with alpha-imino esters under mild conditions and afforded anti-Mannich products with high diastereo- and enantioselectivities (anti/syn up to 99:1, up to >99% ee). For the reactions of ketones with a-imino esters, (R)-3-pyrrolidinecarboxylic acid was an efficient catalyst (anti/syn up to >99:1, up to 99% ee). Evaluation of a series of pyrrolidine-based catalysts indicated that the acid group at the beta-position of the pyrrolidine ring of the catalyst played an important role in forwarding the carbon-carbon bond formation and in directing anti-selectivity and enantioselectivity.
• 3-Pyrrolidinecarboxylic Acid for Direct Catalytic Asymmetric <i>a</i><i>nti</i>-Mannich-Type Reactions of Unmodified Ketones
  作者：Haile Zhang、Maria Mifsud、Fujie Tanaka、Carlos F. Barbas

  DOI：10.1021/ja062950b

  日期：2006.8.1

  We report the development of direct catalytic, enantioselective, anti-selective Mannich-type reactions between unmodified ketones and alpha-imino esters under mild conditions. The reactions were performed using 5-10 mol % of (R)-3-pyrrolidinecarboxylic or (R)-beta-proline as catalyst in an environmentally benign solvent, 2-PrOH, at room temperature. The anti-Mannich products were obtained in good yields with high diastereo- and enantioselectivities (up to anti/syn >99:1, 99% ee). While (3R,5R)-5-methyl-3-pyrrolidinecarboxylic acid is an excellent catalyst for the anti-Mannich-type reactions of aldehydes, it did not efficiently catalyze the corresponding Mannich-type reactions of ketones; (R)-3-pyrrolidinecarboxylic acid did efficiently catalyze the Mannich-type reactions of ketones. (S)-Proline or (S)-2-pyrrolidinecarboxylic acid has been reported to catalyze the Mannich-type reactions of ketones to afford the syn-products. Thus, the position of the carboxylic acid group on the pyrrolidine ring directs the stereoselection of the catalyzed reaction, providing either syn- or anti-Mannich products.