2-Benzyl-4-(4-methoxyphenyl)butanal | 207120-81-8

• 分子结构分类: 有机化合物 - 木脂素、新木脂素和相关化合物
• 英文名称: 2-Benzyl-4-(4-methoxyphenyl)butanal
• CAS: 207120-81-8
• 化学式: C₁₈H₂₀O₂
• 分子量: 268.356
• InChiKey: RDNUDJDMRNUDGR-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.9
• 重原子数：
  20
• 可旋转键数：
  7
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.28
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  2-Benzyl-4-(4-methoxyphenyl)butanal 在 PPA 作用下， 反应 2.0h， 生成 3-Benzyl-6-methoxy-1,2-dihydro-naphthalene 、 7-Methoxy-2-[1-phenyl-meth-(Z)-ylidene]-1,2,3,4-tetrahydro-naphthalene
  参考文献：
  名称：

  Zeolite β-Induced Rearrangement of Alkoxybenzyl Allyl Ethers to Aldehydes and Ketones. 5.¹ Variation of the Allylic Moiety

  摘要：

  Allylic PMB ethers rearranged in the presence of zeolite beta to form 4-arylbutanals or 5-arylpentanones depending on the substituent pattern of the allylic moiety. Best results were obtained with substrates carrying simple substituents in the allylic 2-position, but a couple of substrates lacking a 2-substituent also rearranged. More functionalized substituents in this position were not tolerated. A propargyl PMB ether and a homoallylic PMB ether rearranged as well, but the products were mixtures of isomeric olefins. The 4-arylbutanals 2c and 2e and the 5-arylpentanone 2j were cyclized in PPA to give naphthalene and dihydronaphthalene derivatives, respectively.

  DOI：

  10.1021/jo972243o
• 作为产物：
  描述：

  2-benzylallyl alcohol 在 Zeolite β 、 sodium hydride 作用下， 以 四氢呋喃 、 二氯甲烷 、 N,N-二甲基甲酰胺 为溶剂， 反应 14.5h， 生成 2-Benzyl-4-(4-methoxyphenyl)butanal
  参考文献：
  名称：

  Zeolite β-Induced Rearrangement of Alkoxybenzyl Allyl Ethers to Aldehydes and Ketones. 5.¹ Variation of the Allylic Moiety

  摘要：

  Allylic PMB ethers rearranged in the presence of zeolite beta to form 4-arylbutanals or 5-arylpentanones depending on the substituent pattern of the allylic moiety. Best results were obtained with substrates carrying simple substituents in the allylic 2-position, but a couple of substrates lacking a 2-substituent also rearranged. More functionalized substituents in this position were not tolerated. A propargyl PMB ether and a homoallylic PMB ether rearranged as well, but the products were mixtures of isomeric olefins. The 4-arylbutanals 2c and 2e and the 5-arylpentanone 2j were cyclized in PPA to give naphthalene and dihydronaphthalene derivatives, respectively.

  DOI：

  10.1021/jo972243o

文献信息

• Zeolite β-Induced Rearrangement of Alkoxybenzyl Allyl Ethers to Aldehydes and Ketones. 5.¹ Variation of the Allylic Moiety
  作者：Johan Wennerberg、Charlotte Olofsson、Torbjörn Frejd

  DOI：10.1021/jo972243o

  日期：1998.5.1

  Allylic PMB ethers rearranged in the presence of zeolite beta to form 4-arylbutanals or 5-arylpentanones depending on the substituent pattern of the allylic moiety. Best results were obtained with substrates carrying simple substituents in the allylic 2-position, but a couple of substrates lacking a 2-substituent also rearranged. More functionalized substituents in this position were not tolerated. A propargyl PMB ether and a homoallylic PMB ether rearranged as well, but the products were mixtures of isomeric olefins. The 4-arylbutanals 2c and 2e and the 5-arylpentanone 2j were cyclized in PPA to give naphthalene and dihydronaphthalene derivatives, respectively.