3-(Bromomethyl)-6,7-dihydrobenzofuran-4(5H)-one | 149705-56-6

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并呋喃
• 英文名称: 3-(Bromomethyl)-6,7-dihydrobenzofuran-4(5H)-one
• 英文别名: 3-(bromomethyl)-6,7-dihydro-5H-1-benzofuran-4-one
• CAS: 149705-56-6
• 化学式: C₉H₉BrO₂
• 分子量: 229.073
• InChiKey: AJWZOFATVKQZQE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.7
• 重原子数：
  12
• 可旋转键数：
  1
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  30.2
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-(Bromomethyl)-6,7-dihydrobenzofuran-4(5H)-one 在 四丁基碘化铵 、 magnesium monoperoxyphthalate 、 N,N-二异丙基乙胺 作用下， 以 四氢呋喃 、 二氯甲烷 、 水 为溶剂， 反应 22.0h， 生成 3-(Methoxymethoxymethyl)-6,7-dihydrobenzofuran-4(5H)-one
  参考文献：
  名称：

  Furannulation strategy for synthesis of the naturally occurring fused 3-methylfurans: efficient synthesis of evodone and menthofuran and regioselective synthesis of maturone via a Lewis acid catalyzed Diels-Alder reactions. Some comments for its mechanistic aspects

  摘要：

  Fused 3-methylfurans are readily obtained by the reaction of allenic sulfonium salt 1 and the enolate anions of cyclic 1,3-dicarbonyl compounds in two steps. Using these fused 3-methylfuran compounds as intermediates, furanoterpenoids such as menthofuran (8) and evodone (4b) are synthesized efficiently. Moreover, maturone (15) is also obtained regioselectivity by Lewis acid CatalYzed Diels-Alder reaction of benzofuranquinone (12) with piperylene. In the context with the regioselectivity observed in the Diels-Alder reaction of 12, semiempirical molecular orbital calculations are applied to gain its theoretical interpretation based upon frontier molecular orbital theory and transition state analysis.

  DOI：

  10.1021/jo00067a031
• 作为产物：
  描述：

  3-methylidene-6,7-dihydro-5H-1-benzofuran-4-one 在 N-溴代丁二酰亚胺(NBS) 作用下， 以 乙二醇二甲醚 、 水 为溶剂， 反应 0.5h， 以68%的产率得到3-(Bromomethyl)-6,7-dihydrobenzofuran-4(5H)-one
  参考文献：
  名称：

  Furannulation strategy for synthesis of the naturally occurring fused 3-methylfurans: efficient synthesis of evodone and menthofuran and regioselective synthesis of maturone via a Lewis acid catalyzed Diels-Alder reactions. Some comments for its mechanistic aspects

  摘要：

  Fused 3-methylfurans are readily obtained by the reaction of allenic sulfonium salt 1 and the enolate anions of cyclic 1,3-dicarbonyl compounds in two steps. Using these fused 3-methylfuran compounds as intermediates, furanoterpenoids such as menthofuran (8) and evodone (4b) are synthesized efficiently. Moreover, maturone (15) is also obtained regioselectivity by Lewis acid CatalYzed Diels-Alder reaction of benzofuranquinone (12) with piperylene. In the context with the regioselectivity observed in the Diels-Alder reaction of 12, semiempirical molecular orbital calculations are applied to gain its theoretical interpretation based upon frontier molecular orbital theory and transition state analysis.

  DOI：

  10.1021/jo00067a031