(2R,3S)-ethyl 3-formyl-2-(4-methoxyphenylamino)-4,4-dimethylpentanoate

• 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: (2R,3S)-ethyl 3-formyl-2-(4-methoxyphenylamino)-4,4-dimethylpentanoate
• 英文别名: ethyl (2R,3S)-3-formyl-2-(4-methoxyanilino)-4,4-dimethylpentanoate
• 化学式: C₁₇H₂₅NO₄
• 分子量: 307.39
• InChiKey: JLDUWZXEPDNBAE-HUUCEWRRSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  22
• 可旋转键数：
  9
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.53
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  3,3-二甲基丁醛 、 ethyl (4-methoxyphenylimino)acetate 在 (S)-indoline-3-carboxylic acid 作用下， 以 甲苯 为溶剂， 反应 240.0h， 以70%的产率得到(2R,3S)-ethyl 3-formyl-2-(4-methoxyphenylamino)-4,4-dimethylpentanoate
  参考文献：
  名称：

  吲哚-3-羧酸衍生的有机催化剂用于抗曼尼希反应

  摘要：

  用一系列功能化的吲哚衍生物作为催化剂，研究了预制的醛亚胺与各种羰基化合物的曼尼希型反应：吲哚啉-3-羧酸，二苯甲醇类似物和O保护的甲硅烷基醚类似物。通过将酶动力学拆分作为关键步骤，可以容易地以对映纯形式制备所有化合物（E = 100）。醇和醚催化剂无法诱导完全的手性转移，但确实提供了高收率和高非对映异构体比例的曼尼希碱，而酸催化剂则以高度非对映和对映选择性的方式提供了产物。产品的绝对配置由syn - anti确定 异构化协议，是由空间要求苛刻的1,8-二氮杂双环[5.4.0] undec-7-ene引发的。

  DOI：

  10.1002/chem.201002130

文献信息

• anti-Selective SMP-catalyzed direct asymmetric Mannich-type reactions: synthesis of functionalized amino acid derivatives
  作者：Armando Córdova、Carlos F Barbas

  DOI：10.1016/s0040-4039(02)01772-0

  日期：2002.10

  The first (S)-2-methoxymethylpyrrolidine (SMP)-catalyzed direct asymmetric Mannich-type reactions of unmodified aldehydes with N-PMP-protected α-imino ethyl glyoxylate are described. The reaction proceeded in a highly anti-selective manner (dr up to 19:1) with enantioselectivities between 74 and 92%.

  描述了未改性的醛与N -PMP保护的α-亚氨基乙基乙醛酸酯的第一（S）-2-甲氧基甲基吡咯烷（SMP）催化的直接不对称曼尼希型反应。反应以高度反选择性的方式（dr高达19：1）进行，对映选择性在74％至92％之间。
• Design of a C2-symmetric chiral pyrrolidine-based amino sulfonamide: application to anti-selective direct asymmetric Mannich reactions
  作者：Taichi Kano、Yoshio Hato、Keiji Maruoka

  DOI：10.1016/j.tetlet.2006.09.147

  日期：2006.11

  The anti-selective direct asymmetric Mannich reaction was found to be efficiently catalyzed by the novel pyrrolidine-based amino sulfonamide (R,R)-2 prepared from l-tartaric acid.

  所述抗-选择性直接不对称曼尼希反应被发现通过新的吡咯烷基氨基磺酰胺（被有效地催化- [R ，- [R ）- 2从1-酒石酸制备。
• 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.
• Indoline-3-Carboxylic Acid Derived Organocatalysts for the anti-Mannich Reaction
  作者：Jörg Pietruszka、Robert Christian Simon

  DOI：10.1002/chem.201002130

  日期：2010.12.27

  Mannich type reactions of a preformed aldimine with various carbonyl compounds were investigated with a series of functionalised indoline derivatives as catalysts: indoline‐3‐carboxylic acid, the diphenylcarbinol analogue and O‐protected silyl ether analogues. All compounds were readily prepared in enantiopure form by using an enzymatic kinetic resolution as a key step (E≫100). The alcohol and ether

  用一系列功能化的吲哚衍生物作为催化剂，研究了预制的醛亚胺与各种羰基化合物的曼尼希型反应：吲哚啉-3-羧酸，二苯甲醇类似物和O保护的甲硅烷基醚类似物。通过将酶动力学拆分作为关键步骤，可以容易地以对映纯形式制备所有化合物（E = 100）。醇和醚催化剂无法诱导完全的手性转移，但确实提供了高收率和高非对映异构体比例的曼尼希碱，而酸催化剂则以高度非对映和对映选择性的方式提供了产物。产品的绝对配置由syn - anti确定 异构化协议，是由空间要求苛刻的1,8-二氮杂双环[5.4.0] undec-7-ene引发的。