3,3,6,6-tetramethyl-9-(naphthalen-2-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione | 1079397-31-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 萘
• 英文名称: 3,3,6,6-tetramethyl-9-(naphthalen-2-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione
• 英文别名: 3,3,6,6-tetramethyl-9-naphthalen-2-yl-4,5,7,9-tetrahydro-2H-xanthene-1,8-dione
• CAS: 1079397-31-1
• 化学式: C₂₇H₂₈O₃
• 分子量: 400.518
• InChiKey: KAJWOOMOCPYDRO-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  5.2
• 重原子数：
  30
• 可旋转键数：
  1
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.41
• 拓扑面积：
  43.4
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为产物：
  描述：

  5,5-二甲基-1,3-环己二酮 、 2-萘甲醛 在 1,4-disulfo-1,4-diazabicyclo[2.2.2]octane-1,4-diium chloride 作用下， 以 neat (no solvent) 为溶剂， 反应 0.12h， 以92%的产率得到3,3,6,6-tetramethyl-9-(naphthalen-2-yl)-3,4,5,6,7,9-hexahydro-1H-xanthene-1,8(2H)-dione
  参考文献：
  名称：

  Bi-SO3H functionalized ionic liquid based on DABCO as a mild and efficient catalyst for the synthesis of 1,8-dioxo-octahydro-xanthene and 5-arylmethylene-pyrimidine-2,4,6-trione derivatives

  摘要：

  1,8-二氧杂-八氢化咕吨类化合物可通过醛与1,3-环己二酮和/或双甲酮在新型高效的N-磺化DABCO催化剂作用下缩合反应制得。该试剂同样能高效催化醛与巴比妥酸的缩合反应，生成5-芳亚甲基-嘧啶-2,4,6-三酮。产物结构通过其红外光谱、核磁共振氢谱和碳谱得以表征。本方法具有多种优势，如催化剂制备与处理简便、产率高、操作简单且环保、成本低、反应时间短、后处理简便，以及可在无溶剂条件下或使用水作为绿色溶剂的情况下预先进行反应。

  DOI：

  10.1007/s11164-014-1905-1

文献信息

• A Self-Assembled Trigonal Prismatic Molecular Vessel for Catalytic Dehydration Reactions in Water
  作者：Paramita Das、Atul Kumar、Prodip Howlader、Partha Sarathi Mukherjee

  DOI：10.1002/chem.201702263

  日期：2017.9.12

  A water‐soluble Pd6 trigonal prism (A) was synthesized by two‐component coordination‐driven self‐assembly of a PdII 90° acceptor with a tetraimidazole donor. The walls of the prism are constructed by three conjugated aromatic building blocks, which means that the confined pocket of the prism is hydrophobic. In addition to the hydrophobic cavity, large product egress windows make A an ideal molecular

  通过Pd II 90°受体与四咪唑供体的两组分配位驱动自组装合成了水溶性Pd 6三角棱镜（A）。棱镜的壁由三个共轭芳族结构块构成，这意味着棱镜的受限腔是疏水的。除了疏水腔外，大的产品出口窗口还使A一个理想的分子容器，可以在水性介质中的有限纳米空间中催化其他挑战性的假多组分脱水反应。这项研究是通过使用超分子分子容器微调反应条件来选择性生成中间四酮和黄嘌呤的尝试。而且，在相似的反应条件下，在不存在A的情况下，脱水产物的收率差或无收率，都支持了桶的密闭空间在水中促进这种反应的能力。此外，我们专注于锚定在Pd II配位结构中的基于四苯基乙烯的四咪唑单元的刚性化；在有水的情况下使依赖于阴离子的聚集诱导的发射成为可能。
• Nano-zirconia as an excellent nano support for immobilization of sulfonic acid: a new, efficient and highly recyclable heterogeneous solid acid nanocatalyst for multicomponent reactions
  作者：Ali Amoozadeh、Salman Rahmani、Mehrnoosh Bitaraf、Fatemeh Bolghan Abadi、Elham Tabrizian

  DOI：10.1039/c5nj02430g

  日期：——

  Nano-zirconia-supported sulfonic acid as a novel, highly efficient and recyclable heterogeneous nanocatalyst is reported for the synthesis of multicomponent reactions.

  报告了一种新型的、高效的、可回收的纳米催化剂——纳米氧化锆支撑的磺酸，用于合成多组分反应。

• Silica-supported Phosphomolybdic Acid-catalyzed Efficient Synthesis of 1,8-Dioxooctahydroxanthene and Tetrahydrochromene Derivatives
  作者：Biswanath Das、Martha Krishnaiah、Keetha Laxminarayana、Kongara Damodar、Duddukuri Nandan Kumar

  DOI：10.1246/cl.2008.1000

  日期：2008.9.5

  Silica-supported phosphomolybdic acid was found to be an efficient heterogeneous catalyst for the synthesis of 1,8-dioxooctahydroxanthenes from aldehydes and dimedone and of tetrahydrochromenes fro...

  发现二氧化硅负载的磷钼酸是一种有效的多相催化剂，可用于从醛和二甲酮合成 1,8-二氧代辛基羟基氧杂蒽以及从...
• Heterogeneous <scp> SO ₃ H </scp> @ <scp> Fe ₃ O ₄ </scp> magnetic nanocatalyst as an efficient and reusable medium for the synthesis of 3,3′‐(arylmethylene)‐bis‐(4‐hydroxycoumarin), bis‐(indolyl)‐methane, and 1,8‐dioxo‐octahydroxanthene derivatives
  作者：Xiaobo Wu、Wan‐Xi Peng

  DOI：10.1002/jccs.202000087

  日期：2020.11

  This work aimed to synthesize a new heterogeneous catalyst (SO3H@Fe3O4 magnetic nanoparticles) and the study of its catalytic behavior in synthesizing 3,3′‐(arylmethylene)‐bis‐(4‐hydroxycoumarin), bis‐(indolyl)‐methane, and 1,8‐dioxo‐octahydroxanthene derivatives. The characterization of obtained material has been performed by means of Fourier‐transform infrared spectroscopy, thermogravimetric analysis

  这项工作旨在合成一种新的非均相催化剂（SO 3 H @ Fe 3 O 4磁性纳米粒子），并研究其在合成3,3'-（芳基亚甲基）-双-（4-羟基香豆素），双-（吲哚基）-甲烷和1,8-二氧代-八氢氧杂蒽衍生物。通过傅立叶变换红外光谱，热重分析，X射线衍射，振动样品磁力计和透射电子显微镜对获得的材料进行表征。与以前的方法相比，这种新方法的主要特性是反应时间短，反应条件温和，通过永久磁场简单回收催化剂，具有出色的收率，并且催化剂可重复使用至少六次。
• Magnetic Fe–Cr–Ni oxide alloy nano-belts prepared from the chemical decomposition of a stainless steel screw (a top-down approach): an efficient and cheap catalyst for multicomponent reactions
  作者：Milad Kazemnejadi、Zeinab Sharafi、Boshra Mahmoudi、Atefeh Zeinali、Mohammad Ali Nasseri

  DOI：10.1007/s13738-019-01814-z

  日期：2020.4

  A new, cheap, and accessible method has been used for the preparation of nano-belts from the chemical decomposition (top-down approach) of a cheap stainless steel screw and found as an efficient magnetically recyclable nanocatalyst for the preparation of quinolines and 1,8-dioxo-octahydroxanthenes under mild reaction conditions. The nano-belts, Fe–Cr–Ni oxide alloy, was prepared in a two-step synthesis and characterized with various instrumental methods. Due to magnetic property of the screw (a ferritic-alloy), the resultant nano-belts is magnetic. Magnetic Fe–Cr–Ni alloy nano-belts were applied toward efficient preparation of quinolines and 1,8-dioxo-octahydroxanthenes under mild conditions. The catalyst could be readily recovered and recycled for several consecutive runs, while it suffers from a very low metal leaching and subsequently efficiency drop.

  一种新的、廉价且易得的方法已被用于从廉价不锈钢螺丝的化学分解（自上而下的方法）中制备纳米带，并发现其在温和反应条件下作为高效的磁性可回收纳米催化剂，用于喹啉和1,8-二氧杂-八氢氧杂蒽的制备。这种纳米带，即Fe–Cr–Ni氧化物合金，是通过两步合成法制备的，并使用多种仪器方法进行了表征。由于螺丝（一种铁素体合金）的磁性特性，所得纳米带也具有磁性。磁性Fe–Cr–Ni合金纳米带在温和条件下被应用于高效制备喹啉和1,8-二氧杂-八氢氧杂蒽。该催化剂可以轻易地回收并在多次连续运行中循环使用，同时金属溶出现象极少，因此催化效率几乎不会下降。