2,2'-spirobichroman | 5732-37-6

• 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: 2,2'-spirobichroman
• 英文别名: 3,4,3',4'-tetrahydro-2,2'-spirobis(2H-1-benzopyran)；3,4,3',4'-tetrahydro-[2,2']spirobichromene；3,4,3',4'-Tetrahydro-[2,2']spirobichromen；2,2'-Spirobi[3,4-dihydrochromene]
• CAS: 5732-37-6
• 化学式: C₁₇H₁₆O₂
• 分子量: 252.313
• InChiKey: FSVYJVYLCDNAMF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.3
• 重原子数：
  19
• 可旋转键数：
  0
• 环数：
  4.0
• sp3杂化的碳原子比例：
  0.29
• 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：

  2,2'-spirobichroman 在 硝酸 、 溶剂黄146 作用下， 生成 6,8,6',8'-tetranitro-3,4,3',4'-tetrahydro-[2,2']spirobichromene
  参考文献：
  名称：

  On Disalicylideneacetone and Analogs

  摘要：

  DOI：

  10.1021/ja01163a059
• 作为产物：
  描述：

  (1E,4E)-1,5-bis(2-hydroxyphenyl)penta-1,4-dien-3-one 在 iridium(III) chloride trihydrate 、 5%-palladium/activated carbon 、 氢气 作用下， 以 二氯甲烷 为溶剂， 20.0 ℃ 、1.01 MPa 条件下， 反应 25.0h， 生成 2,2'-spirobichroman
  参考文献：
  名称：

  SpinPhox /铱（I）催化α，α'-双（2-羟基亚芳基）酮的加氢和螺环化催化不对称合成芳族螺缩酮

  摘要：

  从螺线到螺线：具有螺旋P，N配体（SpinPhox）的铱（I）络合物在α，α'-双（2-羟基亚芳基）酮的催化不对称加氢反应中提供高效率的相应芳族螺环化合物非常高效产生的非对映异构和对映异构选择性极佳（参见方案）。该络合物在反应中起双重作用，既充当CC键氢化和随后双酚酮的螺缩酮化的催化剂。

  DOI：

  10.1002/anie.201106488

文献信息

• A facile synthesis of fused aromatic spiroacetals based on the 3,4,3′,4′-tetrahydro-2,2′-spirobis(2H-1-benzopyran) skeleton
  作者：Margaret A. Brimble、Christopher L. Flowers、Michael Trzoss、Kit Y. Tsang

  DOI：10.1016/j.tet.2006.04.026

  日期：2006.6

  The facile synthesis of a series of aromatic 6,6-spiroacetals based on the parent 3,4,3′,4′-tetrahydro-2,2′-spirobis(2H-1-benzopyran) heterocyclic system is reported. Key steps included the use of a Sonogashira coupling for the synthesis of an aryl acetylene that was coupled to an aryl aldehyde to form a propargyl alcohol intermediate. Hydrogenation of the alkynol followed by oxidation produced a masked

  报道了基于母体3,4,3'，4'-四氢-2,2'-螺双（2 H -1-苯并吡喃）杂环体系的一系列芳族6,6-螺缩醛的简便合成。关键步骤包括使用Sonogashira偶联剂合成芳基乙炔，该芳基乙炔与芳基醛偶联形成炔丙醇中间体。炔醇的氢化反应，然后氧化，生成了一种被掩盖的二羟基酮，该酮在用三甲基甲硅烷基溴处理后进行脱保护和环化成稠合的芳族螺缩醛。
• Expeditious synthesis of the aromatic spiroketal skeleton using hetero-Diels–Alder cycloaddition
  作者：Guanglian Zhou、Deping Zheng、Shijun Da、Zhixiang Xie、Ying Li

  DOI：10.1016/j.tetlet.2006.03.092

  日期：2006.5

  The hetero-Diels–Alder reactions of enolic ethers generated from methylenation of various esters are described, which allow for the rapid synthesis of various substituted [6,6] aromatic spiroketal skeletons.

  描述了由各种酯的甲基化反应生成的烯醇醚的杂狄尔斯-阿尔德反应，可以快速合成各种取代的[6,6]芳香族螺环骨架。
• 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。
• Binder-mixtures for optical recording layers and elements
  申请人：EASTMAN KODAK COMPANY (a New Jersey corporation)

  公开号：EP0118881A2

  公开（公告）日：1984-09-19

  A solid, nonpolymeric amorphous mixture of compounds which is useful as a binder in optical recording elements is disclosed. The mixture comprises at least two different compounds each having at least two linking groups joining one multivalent organic nucleus with at least two organic nuclei wherein at least one of the multivalent organic nucleus and the organic nuclei is multicyclic. Methods for making such mixtures are also disclosed.

  本发明公开了一种固态非聚合无定形混合物，可用作光学记录元件的粘合剂。该混合物包括至少两种不同的化合物，每种化合物至少有两个连接基团，连接一个多价有机核和至少两个有机核，其中多价有机核和有机核中至少有一个是多环的。还公开了制造这种混合物的方法。
• 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%。