(3R,4R)-methyl 4-formyl-3-methoxycarbonyl-2-methylenehept-6-enoate | 1351533-95-3

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 脂肪酰基
• 英文名称: (3R,4R)-methyl 4-formyl-3-methoxycarbonyl-2-methylenehept-6-enoate
• 英文别名: dimethyl (3R)-2-methylidene-3-[(2R)-1-oxopent-4-en-2-yl]butanedioate
• CAS: 1351533-95-3
• 化学式: C₁₂H₁₆O₅
• 分子量: 240.256
• InChiKey: BWEHXYIXJCVFNY-UWVGGRQHSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.1
• 重原子数：
  17
• 可旋转键数：
  9
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.42
• 拓扑面积：
  69.7
• 氢给体数：
  0
• 氢受体数：
  5

反应信息

• 作为产物：
  描述：

  柠康酸二甲酯 在 N-溴代丁二酰亚胺(NBS) 、 (S)-2-(7-(triphenylsilyloxy)tridecan-7-yl)pyrrolidine 、 偶氮二异丁腈 作用下， 以 四氯化碳 、 二氯甲烷 为溶剂， 反应 60.5h， 生成 (3R,4R)-methyl 4-formyl-3-methoxycarbonyl-2-methylenehept-6-enoate 、 methyl 4-formyl-3-methoxycarbonyl-2-methylenehept-6-enoate 、 methyl 4-formyl-3-methoxycarbonyl-2-methylenehept-6-enoate
  参考文献：
  名称：

  Enantio- and Diastereoselective Organocatalytic α-Alkylation of Aldehydes with 3-Substituted 2-(Bromomethyl)acrylates

  摘要：

  The catalytic direct alpha-alkylation of aldehydes with 2-(bromomethyl)acrylates has been accomplished, giving rise to alpha-branched and functionalized aldehydes of high diastereo- and enantiopurity. The influence of the nature of the ester group of the acrylates in reaction stereoselectivity and especially in reactivity is investigated. Optimum conditions implicate the use of phenyl acrylates in conjunction with organocatalyst 8. Application of thus obtained adducts in synthesis is illustrated with a concise stereocontrolled preparation of trisubstituted cyclopentenes.

  DOI：

  10.1021/jo202073n

文献信息

• Enantio- and Diastereoselective Organocatalytic α-Alkylation of Aldehydes with 3-Substituted 2-(Bromomethyl)acrylates
  作者：Jacqueline Jiménez、Aitor Landa、Aitziber Lizarraga、Miguel Maestro、Antonia Mielgo、Mikel Oiarbide、Irene Velilla、Claudio Palomo

  DOI：10.1021/jo202073n

  日期：2012.1.6

  The catalytic direct alpha-alkylation of aldehydes with 2-(bromomethyl)acrylates has been accomplished, giving rise to alpha-branched and functionalized aldehydes of high diastereo- and enantiopurity. The influence of the nature of the ester group of the acrylates in reaction stereoselectivity and especially in reactivity is investigated. Optimum conditions implicate the use of phenyl acrylates in conjunction with organocatalyst 8. Application of thus obtained adducts in synthesis is illustrated with a concise stereocontrolled preparation of trisubstituted cyclopentenes.