N-(4-methoxyphenyl)-3-phenylazetidin-2-one | 184423-97-0

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 内酰胺类
• 英文名称: N-(4-methoxyphenyl)-3-phenylazetidin-2-one
• 英文别名: 1-(4-Methoxyphenyl)-3-phenylazetidin-2-one
• CAS: 184423-97-0
• 化学式: C₁₆H₁₅NO₂
• 分子量: 253.301
• InChiKey: JOIBGAJDRUWGNH-UHFFFAOYSA-N

物化性质

• 熔点：
  122-123 °C
• 沸点：
  496.0±45.0 °C(Predicted)
• 密度：
  1.200±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  2.7
• 重原子数：
  19
• 可旋转键数：
  3
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.19
• 拓扑面积：
  29.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  N-(4-methoxyphenyl)-3-phenylazetidin-2-one 在 ammonium cerium(IV) nitrate 作用下， 以 水 、 乙腈 为溶剂， 以72%的产率得到3-苯基氮杂环丁-2-酮
  参考文献：
  名称：

  Stereoselective Synthesis of 3-Substituted 4-(Formyloxy)-2-azetidinones by the Unusual Baeyer−Villiger Reaction of β-Lactam Aldehydes. Scope and Synthetic Applications

  摘要：

  The Baeyer-Villiger oxidation of 4-formyl-beta-lactams 1 with m-CPBA gave 4-(formyloxy) beta-lactams 2 in a simple, efficient, and totally stereoselective process. This reaction is one of the scarce examples of the preferred migration of a carbon moiety in an aliphatic aldehyde. The influence of the substituents at N1 and C3 of the four-membered ring in the Baeyer-Villiger rearrangement has been studied. Thus, alkyl, alkenyl, aryl, and alkyloxy 3-substituted-1-(p-anisyl)-2-azetidinone 1 form exclusively 4-(formyloxy) beta-lactams 2. Amide or acetoxy substituents at C3 of the four-membered ring produce mixtures of 4-(formyloxy) beta-lactams 2 and 4-carboxy beta-lactams 5. The exclusive formation of carboxy derivatives is observed sometimes for 1-alkyl-substituted-2-azetidinones 1. 4-(Formyloxy) beta-lactams 2 are suitable starting materials to prepare different 4-unsubstituted beta-lactams 9 using beta-hydroxy amides 8 as isolable intermediates. The overall transformation 4-formyl-2-azetidinone to 4-unsubstituted beta-lactam is an easy and convenient stereoselective route to these interesting types of compounds.

  DOI：

  10.1021/jo9612685
• 作为产物：
  描述：

  DL-托品酸 在 三苯基膦 、 4-(4,6-二甲氧基三嗪-2-基)-4-甲基吗啉盐酸盐 、 偶氮二甲酸二乙酯 作用下， 以 四氢呋喃 、 甲醇 为溶剂， 反应 26.0h， 生成 N-(4-methoxyphenyl)-3-phenylazetidin-2-one
  参考文献：
  名称：

  N-Arylazetidin-2-one的低温薯条重排合成2,3-二氢-4（1H）-喹诺酮和相应的4（1H）-喹诺酮*

  摘要：

  N型未取代的氮杂环丁烷-2-酮与相关的芳基卤化物或使用Mitsunobu环化方法，可通过Goldberg–Buchwald型铜催化的偶联反应容易地制备通式1的N-氮杂环丁烷-2-酮在三氟乙酸中于0–18°C进行重排，得到异构体2,3-二氢-4（1 H）-喹诺酮（2）。后一种化合物在1.0 M氢氧化钠/丙-2-醇水溶液中，在大约50 ℃下，用10％Pd / C脱氢。在82℃下提供了相应的4（1 H）-喹诺酮（3）。

  DOI：

  10.1071/ch10465

文献信息

• A New Radical Route to C4-Unsubstituted β-Lactams
  作者：Benito Alcaide、Alberto Rodríguez-Vicente、Miguel A. Sierra

  DOI：10.1016/s0040-4039(97)10476-2

  日期：1998.1

  C4-Unsubstituted beta-lactams 3 are conveniently prepared from easily available 4-formyl-beta-lactams 1, in a sequential three step synthesis, using as the key step a radical reductive decarbonylation of 4-carboxy derivatives through their phenyl selenoesters 2. (C) 1997 Elsevier Science Ltd. All rights reserved.
• Synthesis of 2,3-Dihydro-4(1H)-quinolones and the Corresponding 4(1H)-Quinolones via Low-Temperature Fries Rearrangement of N-Arylazetidin-2-ones
  作者：Jens Lange、Alex C. Bissember、Martin G. Banwell、Ian A. Cade

  DOI：10.1071/ch10465

  日期：——

  cyclization processes, undergo smooth Fries-rearrangement in triflic acid at 0–18°C to give the isomeric 2,3-dihydro-4(1H)-quinolones (2). Dehydrogenation of the latter compounds using 10% Pd on C in 1.0 M aqueous sodium hydroxide/propan-2-ol mixtures at ca. 82°C provides the corresponding 4(1H)-quinolones (3).

  N型未取代的氮杂环丁烷-2-酮与相关的芳基卤化物或使用Mitsunobu环化方法，可通过Goldberg–Buchwald型铜催化的偶联反应容易地制备通式1的N-氮杂环丁烷-2-酮在三氟乙酸中于0–18°C进行重排，得到异构体2,3-二氢-4（1 H）-喹诺酮（2）。后一种化合物在1.0 M氢氧化钠/丙-2-醇水溶液中，在大约50 ℃下，用10％Pd / C脱氢。在82℃下提供了相应的4（1 H）-喹诺酮（3）。
• Stereoselective Synthesis of 3-Substituted 4-(Formyloxy)-2-azetidinones by the Unusual Baeyer−Villiger Reaction of β-Lactam Aldehydes. Scope and Synthetic Applications
  作者：Benito Alcaide、Moustafa F. Aly、Miguel A. Sierra

  DOI：10.1021/jo9612685

  日期：1996.1.1

  The Baeyer-Villiger oxidation of 4-formyl-beta-lactams 1 with m-CPBA gave 4-(formyloxy) beta-lactams 2 in a simple, efficient, and totally stereoselective process. This reaction is one of the scarce examples of the preferred migration of a carbon moiety in an aliphatic aldehyde. The influence of the substituents at N1 and C3 of the four-membered ring in the Baeyer-Villiger rearrangement has been studied. Thus, alkyl, alkenyl, aryl, and alkyloxy 3-substituted-1-(p-anisyl)-2-azetidinone 1 form exclusively 4-(formyloxy) beta-lactams 2. Amide or acetoxy substituents at C3 of the four-membered ring produce mixtures of 4-(formyloxy) beta-lactams 2 and 4-carboxy beta-lactams 5. The exclusive formation of carboxy derivatives is observed sometimes for 1-alkyl-substituted-2-azetidinones 1. 4-(Formyloxy) beta-lactams 2 are suitable starting materials to prepare different 4-unsubstituted beta-lactams 9 using beta-hydroxy amides 8 as isolable intermediates. The overall transformation 4-formyl-2-azetidinone to 4-unsubstituted beta-lactam is an easy and convenient stereoselective route to these interesting types of compounds.