1-bromo-2-(1-methoxy-1-oxo-2-penten-5-yl)naphthalene | 153165-30-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 1-bromo-2-(1-methoxy-1-oxo-2-penten-5-yl)naphthalene
• 英文别名: methyl (E)-5-(1-bromonaphthalen-2-yl)-2-methylpent-2-enoate
• CAS: 153165-30-1
• 化学式: C₁₇H₁₇BrO₂
• 分子量: 333.225
• InChiKey: OMZVPFDMJCLGOA-WUXMJOGZSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.65
• 重原子数：
  20.0
• 可旋转键数：
  4.0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.24
• 拓扑面积：
  26.3
• 氢给体数：
  0.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  1-bromo-2-(1-methoxy-1-oxo-2-penten-5-yl)naphthalene 在 偶氮二异丁腈 、 三正丁基氢锡 作用下， 以 甲苯 为溶剂， 以98%的产率得到2,3-dihydro-1-((methoxycarbonyl)methyl)benzindene
  参考文献：
  名称：

  Synthetic studies of the tandem enediyne-mono- and bisradical cyclizations

  摘要：

  The readily synthesized enediynes 12a-j possessing a tethered olefin radical acceptor can participate in a tandem enediyne-radical cyclization to yield dibydrobenzindene derivatives 14a-j. In the present study, the scope of this reaction was expanded to include a wide variety of olefin acceptors. Substitution at both ends of olefin leads to the formation of two diastereomers 14b and 14c in a 3.5:1 ratio when R3 is Me and R2 is CO2Me. The structures of the dihydrobenzindene products 14b and 14c were confirmed by generating a radical from 25 by a tributyltin hydride reaction which undergoes radical cyclization; this radical is similar to the enediyne-generated radical, which also cyclizes. It was shown that, in 14i and 14j, a substituent at R1 slowed the reaction but still resulted in a good to excellent yield of product. A tandem enediyne-6-exo-radical cyclization of 16 was also carried out but did not work as well as its 5-exo counterpart 12a. Finally, an enediyne 33 containing two olefinic tethers was cyclized in a process to form tetracycle 34 where three rings were formed in one synthetic operation.

  DOI：

  10.1021/ja00078a013
• 作为产物：
  描述：

  1-bromo-2-(3-butenyl)naphthalene 在 二甲基硫 、 臭氧 、 1,8-二氮杂双环[5.4.0]十一碳-7-烯 、 lithium chloride 作用下， 反应 0.32h， 生成 1-bromo-2-(1-methoxy-1-oxo-2-penten-5-yl)naphthalene
  参考文献：
  名称：

  Synthetic studies of the tandem enediyne-mono- and bisradical cyclizations

  摘要：

  The readily synthesized enediynes 12a-j possessing a tethered olefin radical acceptor can participate in a tandem enediyne-radical cyclization to yield dibydrobenzindene derivatives 14a-j. In the present study, the scope of this reaction was expanded to include a wide variety of olefin acceptors. Substitution at both ends of olefin leads to the formation of two diastereomers 14b and 14c in a 3.5:1 ratio when R3 is Me and R2 is CO2Me. The structures of the dihydrobenzindene products 14b and 14c were confirmed by generating a radical from 25 by a tributyltin hydride reaction which undergoes radical cyclization; this radical is similar to the enediyne-generated radical, which also cyclizes. It was shown that, in 14i and 14j, a substituent at R1 slowed the reaction but still resulted in a good to excellent yield of product. A tandem enediyne-6-exo-radical cyclization of 16 was also carried out but did not work as well as its 5-exo counterpart 12a. Finally, an enediyne 33 containing two olefinic tethers was cyclized in a process to form tetracycle 34 where three rings were formed in one synthetic operation.

  DOI：

  10.1021/ja00078a013