3-iodo-4-(4-methoxyphenyl)-1-methyl-1-azaspiro[4.5]deca-3,6,9-triene-2,8-dione | 1078120-32-7

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二苯乙烯类
• 英文名称: 3-iodo-4-(4-methoxyphenyl)-1-methyl-1-azaspiro[4.5]deca-3,6,9-triene-2,8-dione
• CAS: 1078120-32-7
• 化学式: C₁₇H₁₄INO₃
• 分子量: 407.208
• InChiKey: WHTNFBDSRMCXEC-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.1
• 重原子数：
  22
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.18
• 拓扑面积：
  46.6
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  3-(4-methoxyphenyl)-N-methyl-N-phenylpropiolamide 在 碘苯二乙酸 、 potassium iodide 作用下， 以 水 、 乙腈 为溶剂， 以78 %的产率得到3-iodo-4-(4-methoxyphenyl)-1-methyl-1-azaspiro[4.5]deca-3,6,9-triene-2,8-dione
  参考文献：
  名称：

  在水相条件下使用高价碘 (III) 试剂对 N-芳基丙酰胺进行无金属自卤代环化

  摘要：

  使用容易获得的高价碘试剂作为氧化剂和卤化钾作为卤素源，在水性介质下对未取代的N-芳基丙酰胺进行有效的分子内卤环化。该方法显示了广泛的底物范围并且不需要任何金属催化剂。

  DOI：

  10.1002/ejoc.202400203

文献信息

• Electrochemical Oxidative Halogenation of <i>N</i>-Aryl Alkynamides for the Synthesis of Spiro[4.5]trienones
  作者：Ke Yu、Xianqiang Kong、Jiajun Yang、Guodong Li、Bo Xu、Qianjin Chen

  DOI：10.1021/acs.joc.0c02429

  日期：2021.1.1

  We developed a green method for the synthesis of spiro[4.5]trienones through an electrochemical oxidative halocyclization with N-aryl alkynamides. This reaction was conducted under metal-catalyst- and exogenous-oxidant-free conditions at room temperature. Using readily available LiCl, LiBr, and LiI as the halogen source, a variety of dearomative halo-spirocyclization products were obtained in good

  我们开发了一种通过N-芳基炔酰胺的电化学氧化卤代环化合成螺[4.5]三烯酮的绿色方法。该反应在室温下在无金属催化剂和无外源氧化剂的条件下进行。使用现成的LiCl，LiBr和LiI作为卤素源，可以得到具有良好收率或优异收率的多种脱芳族卤代-螺环化产品，并具有广泛的范围和官能团耐受性。
• Photo-mediated synthesis of halogenated spiro[4,5]trienones of <i>N</i>-aryl alkynamides with PhI(OCOCF₃)₂ and KBr/KCl
  作者：Tong Liu、Yaming Li、Linlin Jiang、Jiaao Wang、Kun Jin、Rong Zhang、Chunying Duan

  DOI：10.1039/d0ob00057d

  日期：——

  spirocyclization of N-(p-methoxyaryl)propiolamides has been developed. The photolysis of phenyliodine bis(trifluoroacetate) (PIFA) as an iodination reagent led to iodinated ipso-cyclization under the irradiation of a xenon lamp, while brominated ipso-cyclization or chlorinated ipso-cyclization was achieved by irradiating a mixture of PIFA and KBr/KCl under a blue LED. The present protocol simply utilizes

  已经开发出新颖且方便的N-（对甲氧基芳基）丙酰胺的光介导的卤代螺环化。苯碘双（三氟乙酸盐）（PIFA）作为碘化试剂的光解在氙灯的照射下导致碘化ipso环化，而溴化的ipso环化或氯化的ipso环化则通过照射PIFA和KBr / KCl在蓝色LED下。本协议只是利用光作为安全，清洁的能源，不需要任何外部光催化剂即可提供各种3-卤代螺[4,5]三烯酮，产率高至优异（高达93％）。
• Electrophilic <i>ipso</i>-Cyclization of <i>N</i>-(<i>p</i>-Methoxyaryl)propiolamides Involving an Electrophile-Exchange Process
  作者：Bo-Xiao Tang、Qin Yin、Ri-Yuan Tang、Jin-Heng Li

  DOI：10.1021/jo8018297

  日期：2008.11.21

  A novel electrophilic ipso-cyclization involving an electrophile-exchange process has been developed. In the presence of CuX (X = I, Br, SCN) and electrophilic fluoride reagents, a variety of N-(p-methoxyaryl)propiolamides and 4-methoxyphenyl 3-phenylpropiolate were cyclized to selectively afford the corresponding spiro[4.5]decenones in moderate to good yields. It is noteworthy that two azaquaternary tricyclic products were synthesized through a two-step pathway involving an electrophilic ipso-cyclization and then an intramolecular Heck reaction.