7,7-dimethyl-7H-dibenzo[c,h]xanthene | 16967-41-2

• 分子结构分类: 有机化合物 - 有机杂环化合物 - 苯并吡喃
• 英文名称: 7,7-dimethyl-7H-dibenzo[c,h]xanthene
• 英文别名: 7,7-Dimethyl-7H-dibenzo[c,h]xanthen；13,13-Dimethyl-2-oxapentacyclo[12.8.0.03,12.04,9.017,22]docosa-1(14),3(12),4,6,8,10,15,17,19,21-decaene
• CAS: 16967-41-2
• 化学式: C₂₃H₁₈O
• 分子量: 310.395
• InChiKey: XJWHKOJGHCYHGM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.8
• 重原子数：
  24
• 可旋转键数：
  0
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  9.2
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  7,7-dimethyl-7H-dibenzo[c,h]xanthene 、 sodium nitrite 、 溶剂黄146 以72%的产率得到
  参考文献：
  名称：

  SAINT-RUF G.; POUPELIN J.-P., SYNTHESIS , 1975, NO 10, 661-662

  摘要：

  DOI：
• 作为产物：
  描述：

  2-乙酰基-1-萘酚 在 碘 、 对甲苯磺酸 、 magnesium 作用下， 以 乙醚 、 苯 为溶剂， 反应 9.5h， 生成 2-(2,4,4-trimethyl-3,4-dihydro-2H-benzo[h]chromen-2-yl)-1-naphthol 、 7,7-dimethyl-7H-dibenzo[c,h]xanthene
  参考文献：
  名称：

  First synthesis of 2-(2,4,4-trimethyl-3,4-dihydro-2H-benzo[h]chromen-2-yl)-1-naphthol and 3-(2,4,4-trimethyl-3,4-dihydro-2H-benzo[g]chromen-2-yl)-2-naphthol from 1- and 2-naphthol derivatives

  摘要：

  AbstractTwo new structurally isomeric, 2‐(2,4,4‐trimethyl‐3,4‐dihydro‐2H‐benzo[h]chromen‐2‐yl)‐1‐naphthol (1) and 3‐(2,4,4‐trimethyl‐3,4‐dihydro‐2H‐benzo[g]chromen‐2‐yl)‐2‐naphthol (3) have been synthesized from 2‐acetyl‐1‐naphthol and ethyl‐3‐hydroxy‐2‐naphthoate, respectively, involving Grignard reaction, dehydration of the corresponding tertiary alcohols, and hetero Diels–Alder dimerization. The two benzochromenes (1 and 3) have been fully characterized by IR, NMR, and HRESIMS data. Their structures are further supported by crystallography of their corresponding acetates (2 and 4). J. Heterocyclic Chem., (2011).

  DOI：

  10.1002/jhet.473

文献信息

• Palladium-Acid Co-Catalyzed Cleavage of Alkynoates to Construct Dibenzo[c,h]xanthene Derivatives
  作者：Bo-Cheng Tang、Miao Wang、Jin-Tian Ma、Zi-Xuan Wang、Yan-Dong Wu、An-Xin Wu

  DOI：10.1002/adsc.201800770

  日期：2018.10.18

  A novel palladium‐acid co‐catalyzed C(sp)−C(sp2) cleavage of alkynoates for the construction of dibenzo[c,h]xanthene derivatives is reported. A catalytic amount of triflic acid (TfOH) afforded an efficient transformation into the final product. Furthermore, a reduction process of alkynoates was observed during the formation of dibenzo[c,h]xanthene, preliminary mechanistic studies indicated that the

  报道了一种新颖的钯酸共催化炔烃的C（sp）-C（sp 2）裂解，用于构建二苯并[c，h]氧杂蒽衍生物。催化量的三氟甲磺酸（TfOH）有效转化为最终产物。此外，在二苯并[c，h] x吨的形成过程中观察到了炔酸的还原过程，初步的机理研究表明，二苯并[c，h] x吨的新形成的甲基质子化主要来自水。
• Photocrosslinkable, high-temperature-resistant polymers and their use in color imaging devices
  申请人：EASTMAN KODAK COMPANY (a New Jersey corporation)

  公开号：EP0008828A2

  公开（公告）日：1980-03-19

  Photocrosslinkable, organic solvent-soluble polymers having a Tg greater than 200°C are disclosed. The polymers contain sufficient radiation-sensitive crosslinkable units to render the polymers insoluble in organic solvents on exposure to radiation to which the crosslinkable units are sensitive. Also disclosed are color imaging devices having a radiation. sensitive surface and superposed thereon a layer containing a color filter array prepared from the described photocrosslinkable polymers. The polymers are capable of receiving heat-transferable dyes.

  本发明公开了 Tg 大于 200℃的可光交联有机溶剂溶性聚合物。 这种聚合物含有足够的辐射敏感可交联单元，使聚合物在暴露于可交联单元敏感的辐射时不溶于有机溶剂。 本发明还公开了彩色成像设备，该设备具有辐射敏感表面，其上叠加了一层由所述可光交联聚合物制备的彩色滤光片阵列。 这种聚合物能够接收热转移染料。
• Optical article for reflection modulation
  申请人：EASTMAN KODAK COMPANY

  公开号：EP0459574A2

  公开（公告）日：1991-12-04

  An optical article capable of modulating the reflection of polarized monochromatic electromagnetic radiation is disclosed comprised of a reflective metal layer, means acting as a support for directing the electromagnetic radiation to the reflective metal layer, an electrooptic medium that exhibits a refractive index which is a function of an applied electrical potential, and a counter electrode. At least one of the reflective metal layer and the counter electrode taking the form of laterally spaced segments. The reflective metal layer has a thickness of less than 0.5 µm, and a dielectric layer having a thickness in the range of from 0.1 to 10 times the wavelength of the electromagnetic radiation and comprised of at least one metal oxide, metal fluoride, or low molecular weight aromatic compound is coated on the support. The electrooptic medium is a polymeric layer coated on the reflective metal layer exhibiting a second order polarization susceptibility greater than 10⁻⁹ electrostatic units and comprised of polar aligned molecular dipoles having an electron donor moiety linked through a conjugated π bonding system to an electron acceptor moiety. The polymeric layer exhibits a refractive index which differs from that of the dielectric layer by less than 20 percent in the absence of an applied electrical potential.

  本发明公开了一种能够调节偏振单色电磁辐射反射的光学产品，该产品由反射金属层、将电磁辐射导向反射金属层的支撑装置、显示折射率（折射率是外加电势的函数）的电光介质和对电极组成。反射金属层和对电极中至少有一个是横向间隔的片段。反射金属层的厚度小于 0.5 微米，而厚度为电磁辐射波长 0.1 到 10 倍的介电层涂覆在支架上，介电层由至少一种金属氧化物、金属氟化物或低分子量芳香族化合物组成。电光介质是涂覆在反射金属层上的聚合物层，具有大于 10-𠞙 静电单位的二阶极化感度，由极性排列的分子偶极组成，其电子供体分子通过共轭 π 键系统与电子受体分子相连。在没有外加电势的情况下，聚合物层的折射率与介电层的折射率相差不到 20%。
• Noncrystallizable sensitized layers for OLED and OEDs
  申请人：MOLECULAR GLASSES, INC.

  公开号：US10211409B2

  公开（公告）日：2019-02-19

  Various embodiments of the present invention provide for a light emitting devices comprising a light emitting layer comprising an electroluminescent organic material dispersed in a matrix, wherein the electroluminescent organic material has a molecular weight less than about 2000 amu, the matrix comprises a nonelectroluminescent-nonpolymeric amorphous glass mixture, and each of the nonelectroluminescent-nonpolymeric organic molecular glass mixture and the electroluminescent organic material constitutes at least 20 percent by weight of the light emitting layer; and electrodes in electrical communication with the light emitting layer and configured to conduct an electric charge through the light emitting layer such that the light emitting layer emits light.

  本发明的各种实施例提供了一种发光器件，该器件包括一个发光层，该发光层包括分散在基质中的电致发光有机材料，其中电致发光有机材料的分子量小于约2000amu，基质包括非电致发光-非聚合非晶态玻璃混合物，且非电致发光-非聚合有机分子玻璃混合物和电致发光有机材料各自占发光层重量的至少20%；与发光层电气连接的电极，其配置可通过发光层传导电荷，从而使发光层发光。
• Sen-Gupta, Journal of the Chemical Society, 1914, vol. 105, p. 401
  作者：Sen-Gupta

  DOI：——

  日期：——