tert-butyl (1-phenylhex-5-en-1-yn-3-yl)carbamate | 149815-76-9

• 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: tert-butyl (1-phenylhex-5-en-1-yn-3-yl)carbamate
• 英文别名: tert-butyl N-(1-phenylhex-5-en-1-yn-3-yl)carbamate
• CAS: 149815-76-9
• 化学式: C₁₇H₂₁NO₂
• 分子量: 271.359
• InChiKey: XCLHNLRVSIJFSB-UHFFFAOYSA-N

物化性质

• 沸点：
  394.8±42.0 °C(Predicted)
• 密度：
  1.03±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.51
• 重原子数：
  20.0
• 可旋转键数：
  3.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.35
• 拓扑面积：
  38.33
• 氢给体数：
  1.0
• 氢受体数：
  2.0

反应信息

• 作为反应物：
  描述：

  tert-butyl (1-phenylhex-5-en-1-yn-3-yl)carbamate 在 盐酸 、 正丁基锂 作用下， 以 四氢呋喃 、 正己烷 为溶剂， 反应 8.5h， 生成 N-Methyl-3-oxo-N-(1-phenylethynyl-but-3-enyl)-butyramide
  参考文献：
  名称：

  Stereo and electronic effects in the rhodium(II)-mediated synthesis of polycyclic lactones and lactams from .alpha.-diazo ester and amide precursors

  摘要：

  The rhodium(II) carboxylate catalyzed decomposition of several alpha-diazo esters and amides has been studied. A series of 5-keto-1-diazo acetates were prepared by acylation of alpha-hydroxy ketones using the (p-toluenesulfonyl)hydrazone of glyoxylic acid chloride. Treatment of these compounds with Rh(II) acetate afforded products derived from carbenoid insertion into solvent. When the hydrogen atom of the diazo carbon was replaced with an electron-withdrawing substituent, smooth cyclization occurred to produce a carbonyl ylide dipole which was subsequently trapped with different dipolarophiles. A series of N-alkyl-2-diazo-3-oxobutylamides, when treated with a catalytic quantity of rhodium(II) acetate, gave furo[3,4-c]furans in good yield. The reaction proceeds via addition of a rhodium-stabilized carbenoid onto the acetylenic pi-bond to give a vinyl carbenoid which subsequently cyclizes onto the neighboring carbonyl group to produce the furan ring. N-Alkynyl-substituted 2-diazoacetamides were also found to cyclize onto the tethered alkyne unit. The resulting rhodium carbenoid can undergo intramolecular and bimolecular cyclopropanation depending on both electronic and conformational factors. Rotamer population of the starting diazoamide was also found to influence product distribution.

  DOI：

  10.1021/jo00069a030
• 作为产物：
  描述：

  苯丙炔醛 在 一水合肼 、 magnesium 、 三苯基膦 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 1,4-二氧六环 、 乙醇 为溶剂， 反应 20.5h， 生成 tert-butyl (1-phenylhex-5-en-1-yn-3-yl)carbamate
  参考文献：
  名称：

  Stereo and electronic effects in the rhodium(II)-mediated synthesis of polycyclic lactones and lactams from .alpha.-diazo ester and amide precursors

  摘要：

  The rhodium(II) carboxylate catalyzed decomposition of several alpha-diazo esters and amides has been studied. A series of 5-keto-1-diazo acetates were prepared by acylation of alpha-hydroxy ketones using the (p-toluenesulfonyl)hydrazone of glyoxylic acid chloride. Treatment of these compounds with Rh(II) acetate afforded products derived from carbenoid insertion into solvent. When the hydrogen atom of the diazo carbon was replaced with an electron-withdrawing substituent, smooth cyclization occurred to produce a carbonyl ylide dipole which was subsequently trapped with different dipolarophiles. A series of N-alkyl-2-diazo-3-oxobutylamides, when treated with a catalytic quantity of rhodium(II) acetate, gave furo[3,4-c]furans in good yield. The reaction proceeds via addition of a rhodium-stabilized carbenoid onto the acetylenic pi-bond to give a vinyl carbenoid which subsequently cyclizes onto the neighboring carbonyl group to produce the furan ring. N-Alkynyl-substituted 2-diazoacetamides were also found to cyclize onto the tethered alkyne unit. The resulting rhodium carbenoid can undergo intramolecular and bimolecular cyclopropanation depending on both electronic and conformational factors. Rotamer population of the starting diazoamide was also found to influence product distribution.

  DOI：

  10.1021/jo00069a030

文献信息

• One-Pot Synthesis of Less Accessible <i>N</i>-Boc-Propargylic Amines through BF₃-Catalyzed Alkynylation and Allylation Using Boronic Esters
  作者：Kento Yasumoto、Taichi Kano、Keiji Maruoka

  DOI：10.1021/acs.orglett.9b00931

  日期：2019.5.3

  amines is described via an alkynylation or allylation of alkynyl-substituted N-Boc-imines. Our strategy relies on the BF3-mediated in situ generation of alkynyl imines followed by alkynylation or allylation with the corresponding boronic esters. A range of less accessible N-Boc-propargylic amines were obtained in moderate to good yields under mild and acidic conditions with higher atom economy compared

  通过炔基取代的N -Boc-亚胺的炔基化或烯丙基化描述了α-炔基或α-烯丙基取代的N -Boc-炔丙基胺的有效合成。我们的策略依赖于BF 3介导的炔基亚胺的原位生成，然后进行炔基化或与相应的硼酸酯的烯丙基化。与以前的方法相比，在温和和酸性条件下以中等到良好的收率获得了一系列难于获得的N -Boc-炔丙基胺，并且具有更高的原子经济性。
• Synthesis of <i>N</i>-Boc-Propargylic and Allylic Amines by Reaction of Organomagnesium Reagents with <i>N</i>-Boc-Aminals and Their Oxidation to <i>N</i>-Boc-Ketimines
  作者：Taichi Kano、Ryohei Kobayashi、Keiji Maruoka

  DOI：10.1021/acs.orglett.5b03446

  日期：2016.1.15

  N-Boc-protected propargylic and allylic amines were synthesized by the reaction between N-Boc-aminals and organomagnesium reagents through the in situ generated N-Boc-imine intermediates. The obtained N-Boc-propargylic amines could be readily converted into unprecedented N-Boc-ketimines by oxidation with manganese dioxide.

  通过原位生成的N -Boc-亚胺中间体，通过N -Boc-缩醛胺与有机镁试剂之间的反应，合成了以前无法获得的N -Boc-保护的炔丙基和烯丙基胺。通过用二氧化锰氧化，可以容易地将获得的N -Boc-炔丙基胺转化为空前的N -Boc-酮亚胺。