(Z)-1-(4-methoxybenzylidene)-1,3-dihydroisobenzofuran

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 异香豆素
• 英文名称: (Z)-1-(4-methoxybenzylidene)-1,3-dihydroisobenzofuran
• 英文别名: 1-[(Z)-4-(methoxyphenyl)methylidene]isobenzofuran；(z)-1-(4-Methoxy-benzylidene)-1,3-dihydro-isobenzofuran；(3Z)-3-[(4-methoxyphenyl)methylidene]-1H-2-benzofuran
• 化学式: C₁₆H₁₄O₂
• 分子量: 238.286
• InChiKey: MCXRQBKNIXTYNG-YBEGLDIGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.5
• 重原子数：
  18
• 可旋转键数：
  2
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.12
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  对二甲氨基苯甲醛 、 (Z)-1-(4-methoxybenzylidene)-1,3-dihydroisobenzofuran 在 18-冠醚-6 、 potassium tert-butylate 作用下， 以 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 以83%的产率得到4-((Z)-((Z)-3-(4-methoxybenzylidene)isobenzofuran-1(3H)-ylidene)methyl)-N,N-dimethylaniline
  参考文献：
  名称：

  A concise synthesis of tunable fluorescent 1,3-dihydroisobenzofuran derivatives as new fluorophores

  摘要：

  A convenient Potassium tert-butoxide catalyzed addition elimination reaction has been achieved using exo-cyclic end l ethers and aryl aldehydes as the starting materials. The transition-metal free reaction proceeded smoothly to afford 1,3-dihydroisobenzofuran derivatives with good to excellent yields. More importantly, the resulting products were discovered as novel fluorophores with good fluorescence properties and remarkable Stokes shifts. Changing the nature of the substituents in 1,3-dihydroisobenzofurans derivatives allowed the maximum emission wavelengths to be tuned between 438 and 597 nm and the Stokes shifts varied between 63 and 166 nm. In particular, derivative C27 containing a piperidyl and a cyano group showed the maximum emission wavelength of 597 nm and a Stokes shift of 166 nm. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.dyepig.2014.10.013
• 作为产物：
  描述：

  2-碘苄醇 在 bis-triphenylphosphine-palladium(II) chloride copper(l) iodide 、 四丁基氟化铵 、 三乙胺 作用下， 以 四氢呋喃 为溶剂， 反应 17.5h， 生成 (Z)-1-(4-methoxybenzylidene)-1,3-dihydroisobenzofuran
  参考文献：
  名称：

  Cyclization reactions of 2-alkynylbenzyl alcohol and 2-alkynylbenzylamine derivatives promoted by tetrabutylammonium fluoride

  摘要：

  The regioselectivity of the cyclization reaction of 2-ethynylbenzyl alcohol and 2-ethynylbenzylamine derivatives promoted by TBAF was investigated. Six-membered ring derivatives were obtained from the compounds, which have a butyl group on the triple bond. Whereas five-membered ring products were afforded from the substrates having hydrogen or aromatic substituents. on the acetylene moiety. It was also concluded that both the tetrabutylammonium cation and fluoride anion were essential for the cyclization. Thus, the actual mechanism and catalytic cycle were also suggested. (C) 2001 Elsevier Science Ltd. All rights reserved.

  DOI：

  10.1016/s0040-4020(01)00991-7

文献信息

• Solvent-Switched Benzylic Methylene Functionalization: Addition, Ring-Opening, Cyclization, and Unexpected Cleavage of C–O and C–C Bonds
  作者：Deng Yuan Li、Xue Song Shang、Guo Rong Chen、Pei Nian Liu

  DOI：10.1021/ol401470y

  日期：2013.8.2

  been achieved using imines as reagents and potassium tert-butoxide as the catalyst. Depending on the solvent used, the reaction proceeds by two pathways. In THF, an addition/elimination reaction of exo-cyclic enol ethers with imines provides dihydroisobenzofuran derivatives in good yield. In DMSO, an addition/ring-opening/cyclization cascade reaction occurs with unexpected cleavage of C–O and C–C bonds

  使用亚胺作为试剂并使用叔丁醇钾作为催化剂，可以实现环外烯醇醚的分子间苄基亚甲基官能化。根据所使用的溶剂，反应通过两个途径进行。在THF中，的加成/消除反应外切-环烯醇醚与亚胺提供以良好的收率二氢异苯并呋喃衍生物。在DMSO中，加成/开环/环化级联反应会发生意外的C–O和C–C键断裂，从而在环境反应条件下以高收率提供异喹啉-1（2 H）-一产品。
• Regio- and stereoselective intramolecular hydroalkoxylation of aromatic alkynols: an access to dihydroisobenzofurans under transition-metal-free conditions
  作者：Shu-Yan Yu、Li-Hong Gao、Jing-Xin Wu、Hong-Bing Lan、Yi Ma、Zhi-Gang Yin

  DOI：10.1007/s11696-020-01159-5

  日期：2020.10

  An efficient, transition-metal-free method to synthesize dihydroisobenzofuran derivatives via intramolecular hydroalkoxylation of aromatic alkynols with the promotion of cesium carbonate has been developed. The reaction proceeds regioselectively with exclusive formation of 5-exo-dig product, and only Z-isomer of the new generated double bond is observed. This new protocol features with milder reaction conditions, more convenient operation and satisfactory selectivities.

  一种高效的无过渡金属合成二氢异苯并呋喃衍生物的方法已被开发，该方法通过介导铯碳酸盐对芳香族炔醇进行分子内氢烷氧化反应。反应以区位选择性进行，专一生成5-exo-dig产物，并且仅观察到新生成双键的Z-异构体。该新方法具有反应条件温和、操作便捷和选择性满意的特点。
• Regioselective synthesis of phthalans via Cu(OTf)2-catalyzed 5-exo-dig intramolecular hydroalkoxylation of 2-(ethynyl)benzyl alcohols
  作者：Chandrasekaran Praveen、Chandran Iyyappan、Paramasivan Thirumalai Perumal

  DOI：10.1016/j.tetlet.2010.07.030

  日期：2010.9

  efficient, regioselective Cu(OTf)2-catalyzed 5-exo-dig intramolecular hydroalkoxylation of 2-(ethynyl)benzyl alcohol, which provides a concise access to functionalized phthalan in high yields has been developed. A wide range of substrates possessing terminal, internal, and heteroaromatic alkynes can be efficiently transformed into the targeted phthalans. Substrates with primary, secondary, and tertiary benzyl

  一种高效，区域选择性的Cu（OTF）2催化的5-外型-挖2-（乙炔基）苄醇，它提供一个简明的访问以高收率官能phthalan的分子内hydroalkoxylation已经研制成功。具有末端，内部和杂芳族炔烃的多种底物可以有效地转化为目标邻苯二甲酸酯。具有伯，仲和叔苄醇的底物也进展良好，以高收率生产了相应的邻苯二甲酸酯。不论底物的性质如何，当区域选择性成为一个问题时，环化反应都遵循高度选择性的5- exo - dig区域化学。
• Regioselective synthesis and evaluation of 3-alkylidene-1, 3-dihydroisobenzofurans as potential antidepressant agents
  作者：C PRAVEEN、C IYYAPPAN、K GIRIJA、K SURESH KUMAR、P T PERUMAL

  DOI：10.1007/s12039-011-0150-z

  日期：2012.3

  3-Alkylidene-1,3-dihydroisobenzofurans exhibited moderate antidepressant activity as evaluated by forced swim and tail suspension test methods. Virtual screening was carried out by docking the designed compounds into the serotonin binding sites of arabinase protein to predict the analogue binding mode of the compounds to the SSRIs.

  3-亚烷基-1,3-二氢异苯并呋喃在强迫游泳和尾悬试验方法的评估中表现出中等程度的抗抑郁活性。通过将设计的化合物与阿拉伯蛋白酶的血清素结合位点对接，进行了虚拟筛选，以预测化合物与 SSRIs 的类似结合模式。
• 10.1039/d4ra03485f
  作者：Joshi, Om Prakash、Thirumoorthi, Ramalingam、Pardasani, Ram T.、Ray, Sriparna、Dash, Chandrakanta

  DOI：10.1039/d4ra03485f

  日期：——

  Bioactive heterocycles such as benzofuran and indole derivatives were synthesized from commercially available 2-iodoarenes and alkynes via domino Sonogashira coupling followed by cyclization reaction using well-defined palladium PEPPSI (Pyridine Enhanced Precatalyst Preparation Stabilization and Initiation) complexes (2a and 2b). These reactions tolerate a variety of 2-iodoarenes and diversely substituted

  生物活性杂环如苯并呋喃和吲哚衍生物是由市售的 2-碘芳烃和炔烃通过多米诺 Sonogashira 偶联合成的，然后使用明确的钯 PEPPSI（吡啶增强预催化剂制备稳定和引发）络合物进行环化反应（ 2a和2b ）。这些反应可耐受多种 2-碘芳烃和多种取代的末端炔烃，从而在露天气氛中以中等至良好的产率产生相应的产物。特别是，通过相应的 1,2,3-三唑-5-亚基（MIC：介离子卡宾）、PdCl 2 、KI 和 K 2 CO 的反应，以良好的收率合成了两种钯 ( II ) PEPPSI 配合物2a和2b 3在 110 °C 的吡啶中，并通过各种光谱技术（包括 NMR 光谱、IR 光谱、HRMS 和元素分析研究）进行结构表征。配合物2b还通过 X 射线晶体学进行了表征。