1,3-dimethylxanthone | 859785-44-7

• 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: 1,3-dimethylxanthone
• 英文别名: 1,3-Dimethyl-xanthon；1,3-dimethylxanth-9-one；1,3-dimethyl-xanthen-9-one；1,3-Dimethyl-xanthen-9-on；1,3-Dimethyl-9H-xanthene-9-one；1,3-dimethylxanthen-9-one
• CAS: 859785-44-7
• 化学式: C₁₅H₁₂O₂
• 分子量: 224.259
• InChiKey: SHUVKINMESWWAW-UHFFFAOYSA-N

物化性质

• 熔点：
  81-82 °C
• 沸点：
  381.2±42.0 °C(Predicted)
• 密度：
  1.204±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  17
• 可旋转键数：
  0
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.13
• 拓扑面积：
  26.3
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  1,3-dimethylxanthone 在 盐酸 、 溶剂黄146 、 锌 作用下， 生成 1,3,1',3'-tetramethyl-[9,9']bixanthenylidene
  参考文献：
  名称：

  Reactions with Halogen Substituted Xanthones. II¹

  摘要：

  DOI：

  10.1021/ja01624a051
• 作为产物：
  描述：

  3,5-二甲基苯酚 在 indium(III) triflate 、 potassium carbonate 作用下， 以 氘代氯仿 、 N,N-二甲基甲酰胺 为溶剂， 反应 18.0h， 生成 1,3-dimethylxanthone
  参考文献：
  名称：

  路易斯酸在二异丙基醚中催化2-芳氧基苯甲醛和2-（芳硫基）苯甲醛还原为未取代的9H-氧杂蒽和硫杂蒽

  摘要：

  易获得的2-芳氧基苯甲醛和2-（芳硫基）苯甲醛经过一系列反应，在路易斯酸在二异丙基醚中加热时，可高产率生成各种未取代的9 H-氧杂蒽和噻吨。该还原环化方法与几个重要的官能团兼容。该方法还适用于2,6-双（芳氧基）苯甲醛的电子含量更高的芳基环的选择性还原环化。该转变的关键特征是在醛基存在下，通过从二异丙基醚（溶剂）转移分子间的氢化物，化学选择性还原了瞬态的x鎓离子。

  DOI：

  10.1002/adsc.202000836

文献信息

• Acid- and radical-generating agent and method for generating acid and radical
  申请人：FUJIFILM Wako Pure Chemical Corporation

  公开号：US10451967B2

  公开（公告）日：2019-10-22

  It is a subject of the present invention to provide an acid- and radical-generating agent which has high sensitivity to an active energy ray having a wavelength of around 300 to 450 nm, and can exert both high acid-generating performance and high radical-generating performance, and has heat resistance; and a method for generating an acid and a radical. The present invention relates to a compound represented by the general formula (A); an acid- and radical-generating agent comprising the compound; and a method for generating an acid and a radical: wherein n pieces of R1 each independently represent an alkyl group, which may have a specific functional group in the chain, or in which a hydrogen atom may be substituted by a halogen atom; an alkoxy group, in which a hydrogen atom may be substituted by a halogen atom; an aryl group or an aryloxy group, in which a hydrogen atom may be substituted by a halogen atom, an alkyl group or a haloalkyl group; or an arylalkyl group or an arylalkyloxy group, in which a hydrogen atom may be substituted by a halogen atom, an alkyl group or a haloalkyl group; n pieces of R2 and R3 each independently represent a hydrogen atom, an alkyl group or an alkoxycarbonyl group; R4 to R7 each independently represent a hydrogen atom, a halogen atom, an alkyl group, an alkoxy group, an alkenyl group, an aryl group, an alkoxycarbonyl group, a dialkylamino group or a nitro group; Y represents an oxygen atom, a sulfur atom, or a carbonyl group; n pieces of Z each independently represent a sulfonyl group or an alkoxyphosphoryl group; n represents 1 or 2.

  本发明的一个目的是提供一种对波长约为300至450纳米的活性能量射线具有高灵敏度的酸和自由基生成剂，能够发挥高酸生成性能和高自由基生成性能，并具有耐热性；以及一种生成酸和自由基的方法。本发明涉及一种由通式（A）表示的化合物；包括该化合物的酸和自由基生成剂；以及生成酸和自由基的方法：其中n个R1分别独立表示一种烷基基团，该烷基基团可能在链中具有特定的功能基团，或者氢原子可能被卤原子取代；一种烷氧基团，其中氢原子可能被卤原子取代；一种芳基或芳氧基，其中氢原子可能被卤原子，烷基或卤代烷基取代；或一种芳基烷基或芳基氧基，其中氢原子可能被卤原子，烷基或卤代烷基取代；n个R2和R3分别独立表示氢原子，烷基基团或烷氧羰基团；R4到R7分别独立表示氢原子，卤原子，烷基基团，烷氧基团，烯基基团，芳基，烷氧羰基团，二烷基氨基团或硝基；Y表示氧原子，硫原子或羰基；n个Z分别独立表示磺酰基或烷氧基磷酰基；n表示1或2。
• New Methodology for the Synthesis of Xanthones
  申请人：Wang Qian

  公开号：US20140107354A1

  公开（公告）日：2014-04-17

  Methods are provided for forming a xanthone derivative via reacting a 2-substituted benzaldehyde with a phenol derivative to form the xanthone derivative.

  提供了一种方法，通过将2-取代苯甲醛与酚衍生物反应来形成黄酮衍生物。
• POROUS BEADS AND PROCESS FOR PRODUCING THE SAME
  申请人：Asahi Kasei Kabushiki Kaisha

  公开号：EP1247831A1

  公开（公告）日：2002-10-09

  Disclosed is substantially spherical porous beads of an aromatic polyether ketone resin, which have an average particle diameter of 50 to 5,000 µm and a porosity of 40 to 99 %. Also disclosed is a method for producing porous beads, which comprises: mixing, while heating, an aromatic polyether ketone resin with a solvent capable of dissolving the resin to thereby obtain a resin solution; dispersing the resin solution in a liquid dispersion medium which is incapable of dissolving the resin and is non-miscible with the solvent, to thereby obtain a dispersion having the resin solution dispersed therein in the form of globules; cooling the dispersion while maintaining the dispersed form of the resin solution in the liquid dispersion medium, to thereby solidify the resin in the resin solution; and separating the solidified resin from a mixture of the solvent and the liquid dispersion medium, thereby obtaining substantially spherical porous beads of the aromatic polyether ketone resin.

  本发明公开了一种芳香族聚醚酮树脂的球形多孔微珠，其平均颗粒直径为 50 至 5,000 微米，孔隙率为 40 至 99%。还公开了一种生产多孔微珠的方法，该方法包括加热混合芳香族聚醚酮树脂和能溶解该树脂的溶剂，得到树脂溶液；将树脂溶液分散在不能溶解树脂且与溶剂不相溶的液体分散介质中，得到分散液，树脂溶液以球状分散在分散液中；冷却分散液，同时保持树脂溶液在液体分散介质中的分散状态，从而使树脂溶液中的树脂固化；并将固化的树脂从溶剂和液体分散介质的混合物中分离出来，从而得到芳香族聚醚酮树脂的球状多孔珠。
• Metal-Free Oxidative Coupling: Xanthone Formation<i>via</i>Direct Annulation of 2-Aryloxybenzaldehyde using Tetrabutylammonium Bromide as a Promoter in Aqueous Medium
  作者：Honghua Rao、Xinyi Ma、Qianzi Liu、Zhongfeng Li、Shengli Cao、Chao-Jun Li

  DOI：10.1002/adsc.201300488

  日期：2013.8.12

  AbstractA metal‐free intramolecular annulation of 2‐aryloxybenzaldehydes to xanthones is disclosed, which proceeds through the direct oxidative coupling of an aldehyde CH bond and aromatic CH bonds using tetrabutylammonium bromide (TBAB) as a promoter in aqueous medium. This strategy works smoothly in the presence of both electron‐donating and electron‐withdrawing groups, and displays good tolerance towards catalytically reactive substituents, thus promising further functionalizations of xanthone products.magnified image
• Synthesis of functionalized 2-alkoxybenzoates, 2-aryloxybenzoates and xanthones based on formal [3+3] cyclocondensations of 3-alkoxy- and 3-aryloxy-1-silyloxy-1,3-butadienes with 3-silyloxy-2-en-1-ones
  作者：Gerson Mroß、Helmut Reinke、Christine Fischer、Peter Langer

  DOI：10.1016/j.tet.2009.02.052

  日期：2009.5

  Functionalized 2-alkoxy- and 2-aryloxybenzoates were prepared by formal [3+3] cyclocondensations of 3-alkoxy- and 3-aryloxy-1-silyloxy-1,3-butadienes with 3-silyloxy-2-en-1-ones. The reaction of 2-aryloxybenzoates with concentrated sulfuric acid resulted in the formation of xanthones. (C) 2009 Elsevier Ltd. All rights reserved.