ethyl (2S,3R)-3-formyl-2-(p-methoxyphenylamino)hex-5-enoate | 874883-06-4

• 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: ethyl (2S,3R)-3-formyl-2-(p-methoxyphenylamino)hex-5-enoate
• 英文别名: ethyl (2S,3S)-3-formyl-2-(p-methoxyphenylamino)hex-5-enoate；Ethyl (2S,3R)-3-formyl-2-(p-methoxyphenylamino)-hex-5-enoate；ethyl (2S,3R)-3-formyl-2-(4-methoxyanilino)hex-5-enoate
• CAS: 874883-06-4
• 化学式: C₁₆H₂₁NO₄
• 分子量: 291.347
• InChiKey: LESKQMPQSRVWCZ-WFASDCNBSA-N

物化性质

• 沸点：
  442.5±45.0 °C(Predicted)
• 密度：
  1.113±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  21
• 可旋转键数：
  10
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  64.6
• 氢给体数：
  1
• 氢受体数：
  5

反应信息

• 作为反应物：
  描述：

  ethyl (2S,3R)-3-formyl-2-(p-methoxyphenylamino)hex-5-enoate 在 lithium aluminium tetrahydride 作用下， 以 四氢呋喃 为溶剂， 生成 (2R,3S)-2-allyl-3-(4-methoxy-phenylamino)-butane-1,4-diol
  参考文献：
  名称：

  A General Organocatalyst for Direct α-Functionalization of Aldehydes:  Stereoselective C−C, C−N, C−F, C−Br, and C−S Bond-Forming Reactions. Scope and Mechanistic Insights

  摘要：

  The development of a general organocatalyst for the alpha-functionalization of aldehydes, via an enamine intermediate, is presented. Based on optically active alpha,alpha-diarylprolinol silyl ethers, the scope and applications of this catalyst for the stereogenic formation of C-C, C-N, C-F, C-Br, and C-S bonds are outlined. The reactions all proceed in good to high yields and with excellent enantioselectivities. Furthermore, we will present mechanistic insight into the reaction course applying nonlinear effect studies, kinetic resolution, and computational investigations leading to an understanding of the properties of the alpha,alpha-diarylprolinol silyl ether catalysts.

  DOI：

  10.1021/ja056120u
• 作为产物：
  描述：

  4-戊烯醛 、 Acetic acid, [(4-methoxyphenyl)imino]-, ethyl ester, (2E)- 在 (R)-吡咯烷-3-羧酸 作用下， 以 二甲基亚砜 为溶剂， 反应 3.0h， 以97%的产率得到
  参考文献：
  名称：

  TRANS-3,5-DISUBSTITUTEDPYRROLIDINE: ORGANOCATALYST FOR anti-MANNICH REACTIONS

  摘要：

  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CH2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。

  公开号：

  US20070117986A1

文献信息

• Direct organocatalytic asymmetric Mannich-type reactions in aqueous media: one-pot Mannich-allylation reactions
  作者：Armando Córdova、Carlos F Barbas

  DOI：10.1016/s0040-4039(03)00019-4

  日期：2003.2

  organocatalytic asymmetric Mannich-type reactions in aqueous media are demonstrated herein. l-Proline-catalyzed reactions in aqueous media to provide β-formyl substituted α-amino acid derivatives with excellent diastereoselectivities (dr up to 19:1, syn/anti) and high enantioselectivities (ee between 72 and >99%). These conditions provided for the development of novel one-pot asymmetric syntheses of cyclic

  本文证明了在水性介质中的第一个直接的有机催化不对称曼尼希型反应。在水介质中进行l-脯氨酸催化的反应，可提供具有出色的非对映选择性（dr高达19：1，syn / anti）和高对映选择性（ee在72至> 99％之间）的β-甲酰基取代的α-氨基酸衍生物。这些条件为开发新型的一锅式环状γ-烯丙基取代的α-氨基酸衍生物（ee高达> 99％）的不对称合成提供了条件。这是通过在水溶液介质中将脯氨酸催化的曼尼希型反应与铟促进的烯丙基化结合而实现的。
• 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.
• Pipecolic Acid-Catalyzed Direct Asymmetric Mannich Reactions
  作者：Paul Ha-Yeon Cheong、Haile Zhang、Rajee Thayumanavan、Fujie Tanaka、K. N. Houk、Carlos F. Barbas

  DOI：10.1021/ol052861o

  日期：2006.3.2

  Mannich reactions between aldehydes and N-p-methoxyphenyl-protected alpha-imino ethyl glyoxylate have been performed using (S)-pipecolic acid as catalyst. The reactions give both syn- and ant products (dr = 1.4-2:1) with high enantioselectivities (> 98% ee). In contrast, (S)proline-catalyzed reactions give mainly syn-products with high enantioselectivities. Computational studies reveal that the energetic preference between the transition structures involving the s-cis-enamine and the s-trans-enamine is smaller for the pipecolic acid as compared to proline, yielding the (2S,3R)-anti and the (2S,3S)-syn Mannich product in nearly equal amounts.
• Direct Asymmetric <i>a</i><i>nti</i>-Mannich-Type Reactions Catalyzed by a Designed Amino Acid
  作者：Susumu Mitsumori、Haile Zhang、Paul Ha-Yeon Cheong、K. N. Houk、Fujie Tanaka、Carlos F. Barbas

  DOI：10.1021/ja056984f

  日期：2006.2.1

  The development of catalysts for Mannich-type reactions that afford anti-products with excellent diastereo- and enantioselectivities under mild conditions and low catalyst loadings (1-5 mol %) is reported. Based on principles gained from the study of (S)-proline-catalyzed Mannich-type reactions that afford enantiomerically enriched syn-products, (3R,5R)-5-methyl-3-pyrrolidinecarboxylic acid (RR35) has been designed to catalyze the direct enantioselective anti-selective Mannich-type reactions. Computational studies of the above reaction using HF/6-31G* level of theory suggested that this design would be highly effective. The catalyst was subsequently synthesized and studied in organocatalytic Mannich-type reactions between unmodified aldehydes and N-PMP-protected alpha-imino esters. In accord with the design principles and in quantitative agreement with the theoretical predictions, reactions catalyzed by this catalyst afforded anti-products in good yields with excellent diastereo- and enantioselectivities (anti:syn 94:6 to 98:2, >97 to >99% ee).
• 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CH2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。