methyl (-)-(1R,3S,3aR,6aS)-4-oxo-3-phenyloctahydrocyclopenta[c]pyrrole-1-carboxylate

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: methyl (-)-(1R,3S,3aR,6aS)-4-oxo-3-phenyloctahydrocyclopenta[c]pyrrole-1-carboxylate
• 英文别名: (1R,3S,3aR,6aS)-methyl octahydro-4-oxo-3-phenylcyclopenta[c]pyrrole-1-carboxylate；methyl (1S,3R,3aS,6aR)-6-oxo-1-phenyl-2,3,3a,4,5,6a-hexahydro-1H-cyclopenta[c]pyrrole-3-carboxylate
• 化学式: C₁₅H₁₇NO₃
• 分子量: 259.305
• InChiKey: BFJOAXRTNNKELW-SCUASFONSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.2
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.47
• 拓扑面积：
  55.4
• 氢给体数：
  1
• 氢受体数：
  4

反应信息

• 作为产物：
  描述：

  Methyl (E)-N-benzylideneglycinate 在 镍 、 lithium hexamethyldisilazane 作用下， 以 四氢呋喃 为溶剂， 反应 1.08h， 生成 methyl (-)-(1R,3S,3aR,6aS)-4-oxo-3-phenyloctahydrocyclopenta[c]pyrrole-1-carboxylate
  参考文献：
  名称：

  Formal Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Ylides to (S)-2-p-Tolylsulfinyl-2-cyclopentenone

  摘要：

  Azomethine ylides, derived from iminoesters 1 and DBU in the presence of silver salts, react with (S)-2-p-tolylsulfinyl-2-cyclopentenone 2 in a completely regio- and endoselective manner but with a low facial selectivity, affording a mixture of two cycloadducts 3 and 4. When the ylides were prepared with LHMDS, only one diastereoisomer 3 was obtained in an almost quantitative yield. A nucleophilic addition/ring closure process easily accounts for the stereochemical results. Compounds 3 were transformed into optically pure 4-oxocyclopenta[c]dihydropyrroles and tetrahydropyrroles by elimination of the sulfinyl group.

  DOI：

  10.1021/jo035369w

文献信息

• Catalytic Asymmetric 1,3-Dipolar Cycloaddition of Azomethine Ylides with α,β-Unsaturated Ketones
  作者：Jorge Hernández-Toribio、Ramón Gómez Arrayás、Belén Martín-Matute、Juan C. Carretero

  DOI：10.1021/ol802664m

  日期：2009.1.15

  α,β-Unsaturated ketones are no longer the missing dipolarophiles in catalytic asymmetric 1,3-dipolar cycloaddition of azomethine ylides. In the presence of CuI−Fesulphos complexes as catalysts (5 mol %), these substrates combine high reactivity, wide substitution tolerance, moderate to good endo/exo selectivities, and high enantiocontrol. The endo/exo-diastereoselectivity of the reaction is strongly

  α，β-不饱和酮不再是偶氮甲亚胺催化的不对称1,3-偶极环加成反应中缺少的偶极亲和剂。在Cu I -Fesulphos络合物作为催化剂（5摩尔％）的存在下，这些底物结合了高反应活性，宽取代取代度，中等至良好的内/外选择性和高对映体控制性。反应的内/外-非对映体选择性强烈取决于烯酮部分的顺式或反式性质。