(1Z,3E)-4-methoxy-2-methyl-1-phenoxybuta-1,3-diene | 173671-54-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: (1Z,3E)-4-methoxy-2-methyl-1-phenoxybuta-1,3-diene
• 英文别名: [(1Z,3E)-4-methoxy-2-methylbuta-1,3-dienoxy]benzene
• CAS: 173671-54-0
• 化学式: C₁₂H₁₄O₂
• 分子量: 190.242
• InChiKey: IXLZSMWNHAWITA-OCBXPSTGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  14
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.17
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-甲基马来酰亚胺 、 (1Z,3E)-4-methoxy-2-methyl-1-phenoxybuta-1,3-diene 以 甲苯 为溶剂， 反应 6.0h， 生成 N-methyl-7,9-dioxo-5-methoxy-3-methyl-2-phenoxy-8-azabicyclo[4.3.0]non-3-ene
  参考文献：
  名称：

  1,4-Dialkoxy 1,3-dienes and bis(dienes)–stereocontrolled synthesis and reactivity

  摘要：

  gamma-Aryloxy and -alkoxy alpha,beta-unsaturated dimethyl acetals are direct precursors to (1Z, 3E)-1,4-dialkoxy 1,3-dienes and bis(dienes) which are fine partners in cycloaddition reactions with classical dienophiles.

  DOI：

  10.1039/cc9960001295
• 作为产物：
  描述：

  (2Z)-1,1-dimethoxy-3-methyl-4-phenoxybut-2-ene 在 正丁基锂 、 potassium tert-butylate 作用下， 以 四氢呋喃 为溶剂， 反应 20.0h， 生成 (1Z,3E)-4-methoxy-2-methyl-1-phenoxybuta-1,3-diene
  参考文献：
  名称：

  Stereocontrolled Synthesis and Cycloaddition of 1,4-Dialkoxy 1,3-Dienes

  摘要：

  An efficient and stereocontrolled access to 1(Z),3(E)-1,4-dialkoxybutadienes is described that relies on a base-induced conjugated elimination reaction on y-alkoxy or aryloxy a,a-unsaturated acetals. The dienes have then been applied in [4 + 2] cycloaddition reactions where they demonstrate a good thermal reactivity toward activated dienophiles. Despite the 1,4-competition between oxygenated groups, both regio- and endoselectivities are total. A set of experiments has led to the conclusion that the (1Z,3E) pattern is responsible for these high stereocontrols. Several chiral alkoxy dienes have also been prepared following the same route. Their thermal cycloaddition with N-methylmaleimide leads to corresponding adducts in good yields and with total endoselectivities, but modest diastereoisomeric excess.

  DOI：

  10.1021/jo980321h