1-(2-naphthyl)-1-(prop-2-ynyloxy)-2,3-epoxypropane | 203925-00-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 1-(2-naphthyl)-1-(prop-2-ynyloxy)-2,3-epoxypropane
• 英文别名: 2-[Naphthalen-2-yl(prop-2-ynoxy)methyl]oxirane
• CAS: 203925-00-2
• 化学式: C₁₆H₁₄O₂
• 分子量: 238.286
• InChiKey: RYYWZTTZFPGHAC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  18
• 可旋转键数：
  4
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  21.8
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1-(2-naphthyl)-1-(prop-2-ynyloxy)-2,3-epoxypropane 在 二氯二茂钛 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 以76%的产率得到2-(2-naphthyl)-3-(hydroxymethyl)-4-methylenetetrahydrofuran
  参考文献：
  名称：

  Stereoselective Synthesis of Polysubstituted Tetrahydrofurans by Radical Cyclization of Epoxides Using a Transition-Metal Radical Source. Application to the Total Synthesis of (±)-Methylenolactocin and (±)-Protolichesterinic Acid

  摘要：

  Radical cyclization reactions of substituted alpha-(prop-2-ynyloxy) epoxides using bis(cyclopentadienyl)-titanium(III) chloride as the radical source resulted in polysubstituted tetrahydrofurans. Titanium(III) species were prepared in situ from commercially available titanocene dichloride and zinc dust in tetrahydrofuran, Upon radical cyclization, 2-aryl epoxides 3a-e afforded only trans products 4a-e whereas the 2-alkyl epoxides 3f-h formed a mixture of isomeric products 4f-h in a ratio of 5:1. Some of the aryl tetrahydrofuran derivatives have already been used for the synthesis of bioactive furofuran lignans. 2-Pentyl-3-(hydroxymethyl)-4-methylenetetrahydrofuran (4f) and 2-tridecyl-3-(hydroxymethyl)-4-methylenetetrahydrofuran (4g) have been transformed to two antitumor antibiotics (+/-)-methylenolactocin (1f) and (+/-)-protolichesterinic acid (1g), respectively, in good overall yield.

  DOI：

  10.1021/jo971526d
• 作为产物：
  描述：

  1-(萘-2-基)丙-2-烯-1-醇 在 sodium hydride 、 间氯过氧苯甲酸 作用下， 以 四氢呋喃 、 氯仿 、 二甲基亚砜 为溶剂， 反应 4.5h， 生成 1-(2-naphthyl)-1-(prop-2-ynyloxy)-2,3-epoxypropane
  参考文献：
  名称：

  Stereoselective Synthesis of Polysubstituted Tetrahydrofurans by Radical Cyclization of Epoxides Using a Transition-Metal Radical Source. Application to the Total Synthesis of (±)-Methylenolactocin and (±)-Protolichesterinic Acid

  摘要：

  Radical cyclization reactions of substituted alpha-(prop-2-ynyloxy) epoxides using bis(cyclopentadienyl)-titanium(III) chloride as the radical source resulted in polysubstituted tetrahydrofurans. Titanium(III) species were prepared in situ from commercially available titanocene dichloride and zinc dust in tetrahydrofuran, Upon radical cyclization, 2-aryl epoxides 3a-e afforded only trans products 4a-e whereas the 2-alkyl epoxides 3f-h formed a mixture of isomeric products 4f-h in a ratio of 5:1. Some of the aryl tetrahydrofuran derivatives have already been used for the synthesis of bioactive furofuran lignans. 2-Pentyl-3-(hydroxymethyl)-4-methylenetetrahydrofuran (4f) and 2-tridecyl-3-(hydroxymethyl)-4-methylenetetrahydrofuran (4g) have been transformed to two antitumor antibiotics (+/-)-methylenolactocin (1f) and (+/-)-protolichesterinic acid (1g), respectively, in good overall yield.

  DOI：

  10.1021/jo971526d

文献信息

• Stereoselective Synthesis of Polysubstituted Tetrahydrofurans by Radical Cyclization of Epoxides Using a Transition-Metal Radical Source. Application to the Total Synthesis of (±)-Methylenolactocin and (±)-Protolichesterinic Acid
  作者：Pijus Kumar Mandal、Gourhari Maiti、Subhas Chandra Roy

  DOI：10.1021/jo971526d

  日期：1998.5.1

  Radical cyclization reactions of substituted alpha-(prop-2-ynyloxy) epoxides using bis(cyclopentadienyl)-titanium(III) chloride as the radical source resulted in polysubstituted tetrahydrofurans. Titanium(III) species were prepared in situ from commercially available titanocene dichloride and zinc dust in tetrahydrofuran, Upon radical cyclization, 2-aryl epoxides 3a-e afforded only trans products 4a-e whereas the 2-alkyl epoxides 3f-h formed a mixture of isomeric products 4f-h in a ratio of 5:1. Some of the aryl tetrahydrofuran derivatives have already been used for the synthesis of bioactive furofuran lignans. 2-Pentyl-3-(hydroxymethyl)-4-methylenetetrahydrofuran (4f) and 2-tridecyl-3-(hydroxymethyl)-4-methylenetetrahydrofuran (4g) have been transformed to two antitumor antibiotics (+/-)-methylenolactocin (1f) and (+/-)-protolichesterinic acid (1g), respectively, in good overall yield.