6,18-Dimethoxy-10,10,22,22-tetramethylpentacyclo[13.9.0.03,13.04,9.016,21]tetracosa-1,3(13),4(9),5,7,14,16(21),17,19-nonaene | 1191923-99-5

• 分子结构分类: 有机化合物 - 苯类化合物 - 茚满类
• 英文名称: 6,18-Dimethoxy-10,10,22,22-tetramethylpentacyclo[13.9.0.03,13.04,9.016,21]tetracosa-1,3(13),4(9),5,7,14,16(21),17,19-nonaene
• CAS: 1191923-99-5
• 化学式: C₃₀H₃₄O₂
• 分子量: 426.599
• InChiKey: WJQNVMXXRVSOOM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  8.5
• 重原子数：
  32
• 可旋转键数：
  2
• 环数：
  5.0
• sp3杂化的碳原子比例：
  0.4
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  在 甲烷磺酸 作用下， 以 二氯甲烷 为溶剂， 以93%的产率得到6,18-Dimethoxy-10,10,22,22-tetramethylpentacyclo[13.9.0.03,13.04,9.016,21]tetracosa-1,3(13),4(9),5,7,14,16(21),17,19-nonaene
  参考文献：
  名称：

  A Versatile Preparation of Geländer-Type p-Terphenyls from a Readily Available Diacetylenic Precursor

  摘要：

  A series of doubly bridged p-terphenyls (4) have been synthesized utilizing a facile three-step synthesis starting from the readily available diacetylenic precursor (1) in excellent overall yields, and their structures were confirmed by H-1/C-13 NMR spectroscopy as well as by X-ray crystallography. The racemization barrier between the meso and chiral atropisomers; of one of the derivatives of 4 was found to be similar to 12 kcal/mol by variable-temperature NMR spectroscopy. The versatility of the protocol developed herein was further demonstrated by the preparation of a quadruply bridged penta-p-phenylene derivative.

  DOI：

  10.1021/ol901938f