O-(1-phenylhex-2-yn-1-yl)hydroxylamine | 1228682-69-6

• 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: O-(1-phenylhex-2-yn-1-yl)hydroxylamine
• CAS: 1228682-69-6
• 化学式: C₁₂H₁₅NO
• 分子量: 189.257
• InChiKey: VWFZAAPQWIJFOQ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.42
• 重原子数：
  14.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  35.25
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  O-(1-phenylhex-2-yn-1-yl)hydroxylamine 、 苯甲醛 以 四氢呋喃 为溶剂， 反应 2.0h， 生成 benzaldehyde O-(1-phenylhex-2-yn-1-yl)oxime
  参考文献：
  名称：

  Copper-Catalyzed Skeletal Rearrangement of O-Propargylic Aryloximes into Four-Membered Cyclic Nitrones - Chirality Transfer and Mechanistic Insight

  摘要：

  Copper-catalyzed skeletal rearrangement of O-propargylic aryloximes (E)-1 were carried out to afford the corresponding four-membered cyclic nitrones 2 in good to excellent yields. The optimal reactions conditions of the highly regioselective reactions involved the use of [CuCl(cod)](2) in acetonitrile at 70 degrees C. In the case of (Z)-1, however, the reaction proceeded in the absence of the copper catalysts to afford the identical compound 2 in good yields. Furthermore, the reactions were also carried out using chiral substrates (R)-1 in the presence of Cu catalysts to afford (R)-2 with good levels of chirality transfer.

  DOI：

  10.1055/s-0031-1290819
• 作为产物：
  描述：

  在 一水合肼 作用下， 以 四氢呋喃 为溶剂， 反应 1.0h， 生成 O-(1-phenylhex-2-yn-1-yl)hydroxylamine
  参考文献：
  名称：

  Copper-Catalyzed Skeletal Rearrangement of O-Propargylic Aryloximes into Four-Membered Cyclic Nitrones - Chirality Transfer and Mechanistic Insight

  摘要：

  Copper-catalyzed skeletal rearrangement of O-propargylic aryloximes (E)-1 were carried out to afford the corresponding four-membered cyclic nitrones 2 in good to excellent yields. The optimal reactions conditions of the highly regioselective reactions involved the use of [CuCl(cod)](2) in acetonitrile at 70 degrees C. In the case of (Z)-1, however, the reaction proceeded in the absence of the copper catalysts to afford the identical compound 2 in good yields. Furthermore, the reactions were also carried out using chiral substrates (R)-1 in the presence of Cu catalysts to afford (R)-2 with good levels of chirality transfer.

  DOI：

  10.1055/s-0031-1290819

文献信息

• Synthesis of Azepine Derivatives by Rhodium-Catalyzed Tandem 2,3-Rearrangement/Heterocyclization
  作者：Itaru Nakamura、Masashi Okamoto、Yoshinori Sato、Masahiro Terada

  DOI：10.1002/anie.201205285

  日期：2012.10.22

  Easy to N‐cycle: The efficient synthesis of azepine derivatives was achieved by Rh‐catalyzed tandem 2,3‐rearrangement involving the heterocyclization of N‐allenylnitrone intermediates (see scheme; cod=1,5‐cyclooctadiene, tppms=sodium diphenylphosphinobenzene‐3‐sulfonate).

  易于N循环：通过Rh催化的串联2,3重排涉及N-亚烯基硝烯中间体的杂环化，实现了氮杂衍生物的有效合成（参见方案; cod = 1,5-环辛二烯，tppms =二苯基膦基苯钠-3 -磺酸盐）。
• Thermally-induced skeletal rearrangement of (Z)-O-propargylic α,β-unsaturated aldoximes to multisubstituted pyridine oxides
  作者：Itaru Nakamura、Dong Zhang、Masahiro Terada

  DOI：10.1016/j.tetlet.2011.09.107

  日期：2011.11

  (Z)-Propargylic oxime ethers derived from alpha,beta-unsaturated aldehydes were converted to the corresponding 2,3,6-trisubstituted pyridine oxides in moderate to acceptable yields with high regioselectivity. The reaction proceeds via a tandem thermal [2,3] rearrangement, 4 pi electrocyclization, and ring expansion. (C) 2011 Elsevier Ltd. All rights reserved.
• Copper-Catalyzed Tandem [2,3]-Rearrangement and 6π-3-Azatriene Electrocyclization in (<i>E</i>)<i>-O</i>-Propargylic α,β-Unsaturated Oximes
  作者：Itaru Nakamura、Dong Zhang、Masahiro Terada

  DOI：10.1021/ja102436z

  日期：2010.6.16

  Cu-catalyzed cyclizations of (E)-O-propargylic oximes of alpha,B-unsaturated aldehydes were successfully carried out to afford the corresponding pyridine oxides in good to high yields. As an example, (E)-acrylaldehyde O-1,3-diphenylprop-2-ynyl oxime (1b) was reacted for 5 h in the presence of CuBr(PPh(3))(3) (10 mol %) and PPh(3) (10 mol %) in DMSO at 120 degrees C to afford 3-benzyl-2-phenylpyridine-N-oxide (2b) in 84% yield. In this case, the reaction proceeded via Cu-catalyzed propargyl oxime-allenyl nitrone rearrangement followed by 6 pi-3-azatriene electrocyclization.