1-methylspiro<3.5>deca-6,9-diene-2,8-dione | 66629-00-3

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 1-methylspiro<3.5>deca-6,9-diene-2,8-dione
• 英文别名: 1-methylspiro<4.5>deca-6.9-diene-2,8-dione；4-Methylspiro[4.5]deca-6,9-diene-3,8-dione
• CAS: 66629-00-3
• 化学式: C₁₁H₁₂O₂
• 分子量: 176.215
• InChiKey: MSEYNCALYFQNMU-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  1.3
• 重原子数：
  13
• 可旋转键数：
  0
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.45
• 拓扑面积：
  34.1
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为产物：
  描述：

  2-(p-hydroxyphenyl) α-diazoethyl ketone 在 copper(l) chloride 作用下， 以 苯 为溶剂， 反应 2.0h， 以90%的产率得到1-methylspiro<3.5>deca-6,9-diene-2,8-dione
  参考文献：
  名称：

  Iwata, Chuzo; Yamada, Minoru; Shinoo, Yasutaka, Chemical and pharmaceutical bulletin, 1980, vol. 28, # 6, p. 1932 - 1934

  摘要：

  DOI：

文献信息

• The intramolecular Buchner reaction of aryl diazoketones. Substituent effects and scope in synthesis
  作者：Michael Kennedy、M. Anthony McKervey、Anita R. Maguire、Sarbajna M. Tuladhar、M. Fiona Twohig

  DOI：10.1039/p19900001047

  日期：——

  cyclisation occurring in all cases. When the precursor contains a meta-methoxy substituent, 2-tetralones are obtained directly. The efficient conversion of 3-phenylpropionic acid into trans-1-methylbicyclo[5.3.0]decan-2-one is also described, partial asymmetric synthesis having been realised through the use of rhodium (S)-mandelate as the cyclisation catalyst. Cyclisations of diazoketones derived from

  根据前驱体中芳基环的取代方式，由铑（II）乙酸催化的3-芳基丙酸衍生的α-二氮酮的环化反应会生成双环[5.3.0]癸二酮或2-四氢萘酮。前者的产物用三氟乙酸催化转化为后者。已经检测了具有甲基，甲氧基和乙酰氧基取代基的前体，在所有情况下均发生有效的环化。当前体含有间-甲氧基取代基时，直接获得2-四氢萘酮。还描述了将3-苯基丙酸有效转化为反-1-甲基双环[5.3.0]癸烷-2-酮，已通过使用铑实现了部分不对称合成（S-扁桃酸酯作为环化催化剂。还研究了由4-苯基丁酸和5-苯基戊酸衍生的重氮酮的环化。前者为双环[5.4.0]十一烷体系提供了新的入口，而后者通过CH的插入产生了2,3-二取代的环戊酮。讨论了稠环系统中环庚三烯-降二十碳烯平衡的各个方面。
• Spiro-fused 2,5-cyclohexadienones from thermal 1,3-shifts in quinol vinyl ethers. Reactions in nonbenzenoid systems and limitations of the chemistry
  作者：John S. Swenton、David Bradin、Bradley D. Gates

  DOI：10.1021/jo00021a037

  日期：1991.10

  Addition of functionalized organolithium compounds to quinone monoketals furnished 4-hydroxy-2,5-cyclo-hexadienone derivatives. The 4-hydroxyl group of these molecules was then transformed into a vinyl ether, and the thermal [1,3]-shift chemistry of these functionalized vinyl ethers was studied. In dienone derivatives wherein a [3,3]-sigmatropic shift was not stereoelectronically possible, these molecules underwent thermal and photochemical [1,3]-oxygen-to-carbon migration, affording spiro-2,5-cyclohexadienones in good yield. However, for compounds in which the [3,3]-shift involving the vinyl ether was possible, this reaction occurred at or below room temperature. 1,5-Cyclooctadienebis(methyldiphenylphosphine)iridium hexafluorophosphate was found to be an especially efficient catalyst for the allyl-to-vinyl ether isomerization in these systems.