(Z)-3-benzylidene-N-(4-methylphenyl)isoindolin-1-one | 33238-15-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异吲哚及其衍生物
• 英文名称: (Z)-3-benzylidene-N-(4-methylphenyl)isoindolin-1-one
• 英文别名: (Z)-3-benzylidene-2-(p-tolyl)isoindolin-1-one；(Z)-3-benzylidene-N-p-tolyl isoindolin-1-one；(Z)-3-benzylidene-2-p-tolylisoindolin-1-one；(3Z)-3-benzylidene-2-(4-methylphenyl)isoindol-1-one
• CAS: 33238-15-2
• 化学式: C₂₂H₁₇NO
• 分子量: 311.383
• InChiKey: NRHUJEPPONVEEY-QNGOZBTKSA-N

物化性质

• 熔点：
  126 °C(Solv: ethanol (64-17-5))
• 沸点：
  509.1±50.0 °C(Predicted)
• 密度：
  1.224±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5
• 重原子数：
  24
• 可旋转键数：
  2
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.05
• 拓扑面积：
  20.3
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为产物：
  描述：

  2-碘-N-(4-甲基苯基)苯甲酰胺 、 苯乙炔 在 bis-triphenylphosphine-palladium(II) chloride 、 copper(l) iodide 、 三乙胺 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 16.0h， 以34%的产率得到(Z)-3-benzylidene-N-(4-methylphenyl)isoindolin-1-one
  参考文献：
  名称：

  A Highly Regio and Stereoselective Synthesis of (Z)-3-Aryl(alkyl)idene Isoindolin-1-ones via Palladium Catalyzed Annulation of Terminal Alkynes

  摘要：

  o-碘苯甲酰胺或其N-取代衍生物4-10与末端炔烃11-17在二甲基甲酰胺中，在双(三苯基膦)二氯化钯、碘化亚铜和三乙胺的存在下反应，得到（Z）-3-芳基亚甲基异吲哚啉-1-酮（22, 24, 27 和 28）或o-炔基N-取代苯甲酰胺（I）。后者可在乙醇中与钠完全区域和立体选择性环化为（Z）-3-芳基（烷基）亚甲基异吲哚啉-1-酮18-35。

  DOI：

  10.1055/s-1997-1049

文献信息

• Palladium/Copper-Catalyzed Denitrogenative Alkylidenation and<i>ortho</i>-Alkynylation Reaction of 1,2,3-Benzotriazin-4(3<i>H</i>)-ones
  作者：Madasamy Hari Balakrishnan、Subramaniyan Mannathan

  DOI：10.1021/acs.orglett.9b04297

  日期：2020.1.17

  3-benzotriazin-4(3H)-ones with aromatic terminal alkynes is described. Furthermore, a denitrogenative ortho-alkynylation reaction of 1,2,3-benzotriazinones with aliphatic terminal alkynes is also developed. The reaction proceeds through a five-membered azapalladacyclic intermediate with the extrusion of a nitrogen molecule. The significance of the reaction is also demonstrated by a one-pot synthesis of (Z)-

  一种有效的钯催化方法，可通过1,2,3-的脱氮串联炔基化/环化反应获得各种官能化的（Z）-3-亚苄基-异吲哚啉-1-酮和（Z）-3-亚苄基（亚氨基）异苯并呋喃酮描述了具有芳族末端炔的苯并三嗪-4（3H）-一。此外，还开发了1,2,3-苯并三嗪酮与脂肪族末端炔烃的脱氮邻位炔基反应。该反应通过五元氮杂四环中间体与氮分子的挤出而进行。该反应的重要性还通过一锅法合成高产率至高产率的（Z）-3-亚苄基异苯并呋喃-1（3H）-one衍生物得到了证明。
• Rhodium(III)-Catalyzed Amidation of Aryl Ketone<i>O</i>-Methyl Oximes with Isocyanates by CH Activation: Convergent Synthesis of 3-Methyleneisoindolin-1-ones
  作者：Bing Zhou、Wei Hou、Yaxi Yang、Yuanchao Li

  DOI：10.1002/chem.201204448

  日期：2013.4.8

  Going green! The rhodium(III)‐catalyzed annulation of aryl ketone O‐methyl oximes with isocyanates for the synthesis of 3‐methyleneisoindolin‐1‐ones is reported (see scheme). This reaction exhibits high regioselectivity, functional‐group tolerance, and broad substrate scope, without the use of additives or production of environmentally hazardous waste.

  走向绿色！据报道，铑（III）催化的芳基酮O-甲基肟与异氰酸酯的环化反应可合成3-亚甲基异吲哚啉-1-酮（参见方案）。该反应具有较高的区域选择性，官能团耐受性和广泛的底物范围，而无需使用添加剂或不产生对环境有害的废物。
• Efficient Synthesis of a (Z)-3-Methyleneisoindolin-1-one Library Using Cu(OAc)2•H2O/DBU under Microwave Irradiation
  作者：Li Zhang、Yongliang Zhang、Xin Wang、Jingkang Shen

  DOI：10.3390/molecules18010654

  日期：——

  Microwave-promoted efficient synthesis of a (Z)-3-methyleneisoindolin-1-one library from 2-bromobenzamides and terminal alkynes using Cu(OAc)2•H2O/DBU is described. Various benzamide substituents, ring substitutions, including heteroaryl, aryl acetylenes and aliphatic alkynes, could be applied to afford the desired products in good to moderate yield with high stereoselectivity. It is noteworthy that DBU maybe play a dual role as not only the base, but also as a ligand for copper. The reaction is catalyzed by the complex of Cu(OAc)2•H2O and DBU without other additives.

  介绍了利用 Cu(OAc)2-H2O/DBU 以 2-溴苯甲酰胺和端炔类化合物为原料，通过微波促进高效合成 (Z)-3 亚甲基异吲哚啉-1-酮库。应用各种苯甲酰胺取代基、环取代基（包括杂芳基、芳基乙炔基和脂肪族炔烃）可得到所需的产品，产率从良好到中等，且具有很高的立体选择性。值得注意的是，DBU 可能具有双重作用，它不仅是碱，还是铜的配体。该反应由 Cu(OAc)2- 和 DBU 的络合物催化，无需其他添加剂。
• Copper(II)-Catalyzed Tandem Synthesis of Substituted 3-Methyleneisoindolin-1-ones
  作者：Jie Pan、Zhen Xu、Runsheng Zeng、Jianping Zou

  DOI：10.1002/cjoc.201300346

  日期：2013.8

  AbstractAn efficient strategy for the synthesis of a variety of 3‐methyleneisoindolin‐1‐ones has been developed. The reaction proceeded from coupling of 2‐iodobenzamides (or 2‐bromobenzamides) and terminal alkynes via Cu(OAc)2·H2O/2,2′‐biimidazole catalyzed in DMF at 60°C and subsequent additive cyclization produced substituted 3‐methyleneisoindolin‐1‐ones in good to excellent yields.
• Palladium-Catalysed Heteroannulation with Terminal Alkynes: a Highly Regio- and Stereoselective Synthesis of (Z)-3-Aryl(alkyl)idene Isoindolin-1-ones
  作者：Nitya G Kundu、M.Wahab Khan

  DOI：10.1016/s0040-4020(00)00359-8

  日期：2000.6

  A highly regio- and stereoselective method for the synthesis of (Z)-3-aryl(alkyl)idene isoindolin-1-ones through palladium-copper catalysis is described. 2-Iodobenzamide 1 and its substituted derivatives 2-10 were reacted with terminal alkynes 11-19 in the presence of (PPh3)(2)PdCl2, CuI, and Et3N in DMF mostly at 80 degrees C for 16 h to yield the 2-alkynyl substituted benzamides 20-38, 40-45, 77 which could then be cyclised with NaOEt in EtOH to the 3-aryl(alkyl)idene isoindolin-1-ones 46-49, 51, 53-55, 57, 59-71, 73 and 75. In certain cases, the isoindolin-1-ones 50, 52, 56 and 58 could be directly obtained by the palladium-catalysed reactions. (C) 2000 Elsevier Science Ltd. All rights reserved.