(S)-4-Methoxy-3-(naphthalen-1-ylmethyl)-4-oxobutanoic acid

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: (S)-4-Methoxy-3-(naphthalen-1-ylmethyl)-4-oxobutanoic acid
• 英文别名: (3S)-4-methoxy-3-(naphthalen-1-ylmethyl)-4-oxobutanoic acid
• 化学式: C₁₆H₁₆O₄
• 分子量: 272.301
• InChiKey: LJSMGWBQOFWAPJ-ZDUSSCGKSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.8
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  63.6
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  3-(methoxycarbonyl)-4-(1-naphthyl)-3-butenoic acid 在 [Rh(S,S,R,R)TangPhos(nbd)]SbF₆ 氢气 作用下， 以 四氢呋喃 为溶剂， 20.0 ℃ 、137.9 kPa 条件下， 反应 24.0h， 以100%的产率得到(S)-4-Methoxy-3-(naphthalen-1-ylmethyl)-4-oxobutanoic acid
  参考文献：
  名称：

  用Rh-TangPhos催化剂对衣康酸和烯醇乙酸酯衍生物进行不对称氢化。

  摘要：

  [反应：见正文] Rh-TangPhos催化剂已用于衣康酸和烯醇乙酸酯衍生物的不对称氢化。已经获得了各种具有出色ee值（最高ee为99％）的手性2-取代的琥珀酸和手性乙酸酯。

  DOI：

  10.1021/ol0272592

文献信息

• Asymmetric Reactions Catalyzed by Chiral Metal Complexes. LVII. Synthesis of Efficient Chiral Bisphosphine Ligands, Modified DIOPs, (4R,5R)-4-(Diaryl- or dialkylphosphino)methyl-5-(diarylphosphino)methyl-2,2-dimethyl-1,3-dioxolanes, and Their Use in Rhodium(I)-Catalyzed Asymmetric Hydrogenations.
  作者：Toshiaki MORIMOTO、Mitsuo CHIBA、Kazuo ACHIWA

  DOI：10.1248/cpb.41.1149

  日期：——

  Modified DIOPs, (4R, 5R)-4-(diaryl- or dialkylphosphino)methyl-5-(diarylphosphino)methyl-2, 2-dimethyl-1, 3-dioxolanes, were prepared on the basis of our design concept, and used as ligands for the rhodium(I)-catalyzed asymmetric hydrogenations of ketopantolactone, itaconic acid, demethyl itaconate, and β-aryl-substituted itaconic acid derivatives. A neutral rhodium(I)-complex of (4R-trans)-dicyclohexyl[[5-[(diphenylphosphino)methyl]-2, 2-dimethyl-1, 3-dioxolan-4-yl]methyl]phosphine (DIOCP) bearing both a dicyclohexylphosphino group and a diphenylphosphino group was found to be a more efficient catalyst than the original DIOP in the asymmetric hydrogenation of ketopantolactone. Modified DIOPs bearing electron-donating groups at their para positions were efficient ligands for the rhodium(I)-catalyzed asymmetric hydrogenations of itaconic acid and its derivatives; in particular, (4R-trans)-[(2, 2-dimethyl-1, 3-dioxolane-4, 5-diyl)bis(metylene)]bis[bis(4'-methoxy-3', 5'-dimethylphenyl)phosphine] (MOD-DIOP) bearing both a p-methoxy group and two m, m'-methyl groups on each phenyl group showed much higher enantioselectivity and catalytic activity than DIOP.

  改良的DIOPs，(4R, 5R)-4-(二芳基或二烷基磷酰基)甲基-5-(二芳基磷酰基)甲基-2, 2-二甲基-1, 3-二噁烷，基于我们的设计概念制备，并用作铑(I)催化的酮平滑酸、丁烯二酸、去甲基丁烯二酸酯和β-芳基取代丁烯二酸衍生物的不对称氢化的配体。含有二环己基磷酰基和二苯基磷酰基的(4R-trans)-二环己基[[5-[(二苯基磷酰基)甲基]-2, 2-二甲基-1, 3-二噁烷-4-基]甲基]磷酸盐（DIOCP）被发现是比原始DIOP在酮平滑酸的不对称氢化反应中更有效的催化剂。具有电子给体基团的改良DIOPs在其对位上是铑(I)催化的丁烯二酸及其衍生物不对称氢化的有效配体；特别是，(4R-trans)-[(2, 2-二甲基-1, 3-二噁烷-4, 5-双基)双(亚甲基)]双[双(4'-甲氧基-3', 5'-二甲基苯)磷]（MOD-DIOP）同时具有p-甲氧基基团和每个苯基上的两个m, m'-甲基基团，其对映选择性和催化活性显著高于DIOP。
• Asymmetric Hydrogenation of Itaconic Acid and Enol Acetate Derivatives with the Rh-TangPhos Catalyst
  作者：Wenjun Tang、Duan Liu、Xumu Zhang

  DOI：10.1021/ol0272592

  日期：2003.1.1

  [reaction: see text] The Rh-TangPhos catalyst has been used for asymmetric hydrogenation of itaconic acid and enol acetate derivatives. A variety of chiral 2-substituted succinic acids and chiral acetates have been obtained in excellent ee values (up to 99% ee).

  [反应：见正文] Rh-TangPhos催化剂已用于衣康酸和烯醇乙酸酯衍生物的不对称氢化。已经获得了各种具有出色ee值（最高ee为99％）的手性2-取代的琥珀酸和手性乙酸酯。