3,6-dihydroxy-1,2-dihydrobenzocyclobutene | 77627-60-2

• 分子结构分类: 有机化合物 - 苯类化合物 - 酚类
• 英文名称: 3,6-dihydroxy-1,2-dihydrobenzocyclobutene
• 英文别名: Bicyclo[4.2.0]octa-1,3,5-triene-2,5-diol
• CAS: 77627-60-2
• 化学式: C₈H₈O₂
• 分子量: 136.15
• InChiKey: GFPYPUDPPWWSDF-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.5
• 重原子数：
  10
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.25
• 拓扑面积：
  40.5
• 氢给体数：
  2
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3,6-dihydroxy-1,2-dihydrobenzocyclobutene 在 2,3-二氯-5,6-二氰基-1,4-苯醌 作用下， 以 乙腈 为溶剂， 以84%的产率得到1,2,3,6-tetrahydrobenzocyclobutene-3,6-dione
  参考文献：
  名称：

  SYNTHESES OF 1,2,3,6-TETRAHYDROBENZOCYCLOBUTENE-3,6-DIONES

  摘要：

  通过一步法或分步法氧化双环[4.2.0]辛烷-2,5-二酮，首先合成了母体 1,2,3,6-四氢苯并环丁烯-3,6-二酮及其简单衍生物。

  DOI：

  10.1246/cl.1981.37
• 作为产物：
  描述：

  bicyclo<4.2.0>oct-3-ene-2,5-dione 在 1,8-二氮杂双环[5.4.0]十一碳-7-烯 作用下， 以 四氢呋喃 为溶剂， 以84%的产率得到3,6-dihydroxy-1,2-dihydrobenzocyclobutene
  参考文献：
  名称：

  SYNTHESES OF 1,2,3,6-TETRAHYDROBENZOCYCLOBUTENE-3,6-DIONES

  摘要：

  通过一步法或分步法氧化双环[4.2.0]辛烷-2,5-二酮，首先合成了母体 1,2,3,6-四氢苯并环丁烯-3,6-二酮及其简单衍生物。

  DOI：

  10.1246/cl.1981.37

文献信息

• SYNTHESIS AND SOME PROPERTIES OF 1,2-DIHYDRO-4,7-DIHYDROXYCYCLOBUTA[b]NAPHTHALENE-3,8-DIONE AND 1,2,5,6-TETRAHYDRO-4,7-DIHYDROXYDICYCLOBUTA[b,g]NAPHTHALENE-3,8-DIONE
  作者：Takashi Watabe、Masaji Oda

  DOI：10.1246/cl.1984.1791

  日期：1984.10.5

  Title compounds have been first synthesized. The effects of strain due to the cyclobutene annelation are observed in the 13C NMR chemical shifts, tautomeric equilibrium, reduction potentials, and Diels–Alder reactions with dienes; thermolytic Diels-Alder reactions with dienophiles give novel polycyclic hydroxyquinones.

  标题化合物首先被合成。在 13C NMR 化学位移、互变异构平衡、还原电位和与二烯的 Diels-Alder 反应中观察到由于环丁烯退火引起的应变效应；与亲二烯体的热解 Diels-Alder 反应产生新的多环羟基醌。
• BIAXIALLY ORIENTED LAMINATED POLYESTER FILM FOR MAGNETIC RECORDING MEDIA
  申请人：TEIJIN LIMITED

  公开号：EP0888884A1

  公开（公告）日：1999-01-07

  The film of the present invention is a biaxially oriented laminated polyester film for magnetic recording medium consisting of a polyester layer A containing fine particles and laminated to at least one surface of a polyester layer B, wherein the fine particles in the polyester layer A are composed of 0.001 to 0.03% by weight of crosslinked polymer particles (a) having an average particle diameter (da) of 0.9 to 1.6 µm, 0.1 to 0.8% by weight of inert particles (b) having an average particle diameter (db) of 0.4 to 0.8 µm and 0.05 to 1.0% by weight of inert inorganic particles (c) having an average particle diameter (dc) of 0.01 to 0.3 µm and a Mohs hardness of 7 or above, and the ratio of the thickness TA (µm) of the polyester layer A to the average particle diameter da (µm) of the crosslinked polymer particle (TA/da) is in the range of from 0.4 to 2.0. The film has excellent windability, abrasion resistance, transportation durability and electromagnetic conversion characteristics and is producible at a low production cost and useful especially as a base film of a magnetic recording medium for high-speed duplicator.

  本发明的薄膜是一种用于磁记录介质的双向拉伸层压聚酯薄膜，由含有细颗粒的聚酯层A和层压到聚酯层B的至少一个表面组成，其中聚酯层A中的细颗粒由0.001至0.03%(重量)的平均颗粒直径(da)为0.9至1.6微米的交联聚合物颗粒(a)、0.1至0.8%(重量)的平均颗粒直径(db)为0.4至0.8微米的惰性颗粒(b)和0.05至1.0%(重量)的惰性无机颗粒(db)组成。8%（重量百分比）的惰性颗粒（b），其平均颗粒直径（db）为 0.4 至 0.8 微米，以及 0.05 至 1.0%（重量百分比）的惰性无机颗粒（c），其平均颗粒直径（dc）为 0.01 至 0.3 微米，莫氏硬度为 7 或以上，且聚酯层 A 的厚度 TA（微米）与交联聚合物颗粒的平均颗粒直径 da（微米）之比（TA/da）在 0.4 至 2.0 之间。这种薄膜具有优异的可卷绕性、耐磨性、运输耐久性和电磁转换特性，生产成本低廉，特别适合用作高速复制机磁性记录介质的基膜。
• BIAXIALLY ORIENTED POLYESTER FILM AND MAGNETIC RECORDING MEDIA CONTAINING THE FILM AS THE BASE
  申请人：TEIJIN LIMITED

  公开号：EP0950681A1

  公开（公告）日：1999-10-20

  A biaxially oriented polyester film for a magnetic recording medium, which comprises more than 0.0005 wt% and less than 0.001 wt% of crosslinked polymer particles A having an average particle diameter dA of 0.8 to 1.6 µm, 0.1 to 0.8 wt% of inert particles B having an average particle diameter dB of 0.4 to 0.8 µm and 0.05 to 1.0 wt% of inert inorganic particles C having both an average particle diameter dC of 0.01 to 0.3 µm and a Mohs hardness of 7 or more, wherein the ratio (dA/dB) of the average particle diameter of the crosslinked polymer particles A to that of the inert inorganic particles B is 1.5 to 3 and the ratio (SRz/SRa) of the three-dimensional 10-point average roughness SRz to the three-dimensional center plane average roughness SRa of the film surface is 20 or more. This film has excellent winding property, abrasion resistance and travel durability, can be produced at a low production cost and is especially useful as a base film for a magnetic recording medium for a high-speed duplicator.

  一种用于磁记录介质的双向拉伸聚酯薄膜，它包括大于 0.0005 重量％但小于 0.001 重量％的交联聚合物颗粒 A，其平均颗粒直径 dA 为 0.8 至 1.6 微米；0.1 至 0.8 重量％的惰性颗粒 B，其平均颗粒直径 dB 为 0.4 至 0.8 微米；0.05 至 1.0 重量％的惰性无机颗粒 C，其平均颗粒直径 dC 为 0.其中，交联聚合物颗粒 A 的平均颗粒直径 dA/dB 与惰性无机颗粒 B 的平均颗粒直径之比 (dA/dB) 为 1.5 至 3，薄膜表面的三维 10 点平均粗糙度 SRz 与三维中心平面平均粗糙度 SRa 之比 (SRz/SRa) 为 20 或以上。 这种薄膜具有优异的卷绕性能、耐磨性和行驶耐久性，生产成本低廉，特别适合用作高速复制机磁性记录介质的基膜。
• ODA MASAJI; KANAO YOSHINORI, CHEM. LETT., 1981, NO 1, 37-38
  作者：ODA MASAJI、 KANAO YOSHINORI

  DOI：——

  日期：——
• WATABE, TAKASHI;ODA, MASAJI, CHEM. LETT., 1984, N 10, 1791-1794
  作者：WATABE, TAKASHI、ODA, MASAJI

  DOI：——

  日期：——