1,7-Diphenyl-1,6-heptadien-4-on | 74032-52-3

• 分子结构分类: 有机化合物 - 苯丙烷和聚酮 - 二芳基庚烷
• 英文名称: 1,7-Diphenyl-1,6-heptadien-4-on
• 英文别名: Cinnamyl ketone；(1E,6E)-1,7-diphenylhepta-1,6-dien-4-one
• CAS: 74032-52-3
• 化学式: C₁₉H₁₈O
• 分子量: 262.351
• InChiKey: BAHYRRKWDPFEOG-FNCQTZNRSA-N

物化性质

• 熔点：
  85-87 °C
• 沸点：
  441.0±34.0 °C(Predicted)
• 密度：
  1.066±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  4.4
• 重原子数：
  20
• 可旋转键数：
  6
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  17.1
• 氢给体数：
  0
• 氢受体数：
  1

反应信息

• 作为反应物：
  描述：

  1,7-Diphenyl-1,6-heptadien-4-on 在 chiral organoaluminum Lewis acid catalyst 碘 、 二异丁基氢化铝 作用下， 以 二氯甲烷 、 甲苯 为溶剂， 反应 12.0h， 生成 1,8-diphenyl-5-triethylsiloxy-1,7-octadien-4-one
  参考文献：
  名称：

  使用轴向手性有机铝路易斯酸催化不对称重排 α,α-二取代 α-甲硅烷氧基醛为旋光丙烯醛

  摘要：

  基于立体化学定义的轴向手性有机铝路易斯酸 3 的设计，开发了 α,α-二烷基-α-甲硅烷氧基醛的催化不对称重排。例如，处理 (S,S)-4 (1.1 equiv)在室温下与甲苯中的 Me3Al 反应 30 分钟生成 (S,S)-3 (5 mol %)，随后与 α-甲硅烷氧基醛 1a (R = CH2Ph) 在 -20 °C 反应 12 小时，得到平滑的重排得到相应的 α-甲硅烷氧基酮 2a (R = CH2Ph)，分离产率为 96%，ee (S) 为 87%。这种前所未有的立体选择性重排的范围已经用代表性底物进行了研究，其中外消旋的 α,α-二取代 α-甲硅烷氧基醛的动力学分辨率也令人印象深刻。

  DOI：

  10.1021/ja063051q
• 作为产物：
  描述：

  2-(Benzoylamino)-2-cinnamyl-5-phenyl-4-pentensaeure 在 草酸 作用下， 以 四氢呋喃 、 六甲基磷酰三胺 、 水 、 Petroleum ether 为溶剂， 生成 1,7-Diphenyl-1,6-heptadien-4-on
  参考文献：
  名称：

  Lohmar, Rainald; Steglich, Wolfgang, Chemische Berichte, 1980, vol. 113, # 12, p. 3706 - 3715

  摘要：

  DOI：

文献信息

• Synthetic applications of samarium(II) iodide mediated regioselective cleavage of phenylsulfonyl activated cyclopropyl ketones
  作者：Vichai Reutrakul、Rungnapha Saeeng、Manat Pohmakotr、Palangpon Kongsaeree

  DOI：10.1016/s0040-4039(98)02514-3

  日期：1999.1

  Reductive cleavage of phenylsulfonyl activated cyclopropyl ketones with samarium(II) iodide led regioselectively to samarium enolates or dienolates. These were trapped with some alkylating agents.

  苯磺酰基活化的环丙基酮与碘化sa的还原裂解可选择性地导致re烯醇盐或二烯醇盐。这些被一些烷基化剂截留。
• Maintaining spectral quality over long measuring periods in imaging mass spectrometry
  申请人：Bruker Daltonik GmbH

  公开号：US11081328B2

  公开（公告）日：2021-08-03

  The invention relates to imaging mass spectrometry on thin sample sections, in particular using MALDI, where a high lateral image resolution means that a plethora of mass spectra has to be acquired and the image acquisition runs over many hours. The quality of the mass spectra deteriorates considerably over time in such cases. The invention is based on the finding that the decrease in spectral quality of continuous measurement series over many hours is only partially caused by a decrease in detector gain, and that another significant cause is a decrease in the number of usable ions per ion generating pulse, which is attributable to several phenomena that are difficult to regulate. The invention now proposes to instead regulate only the detector gain, and such that not only the decrease in the detector gain is compensated, but also the decrease in the number of usable ions per ion generating pulse.

  本发明涉及薄样品切片的成像质谱分析，特别是使用 MALDI，在这种情况下，高横向图像分辨率意味着必须采集大量的质谱，而且图像采集需要多个小时。在这种情况下，随着时间的推移，质谱的质量会明显下降。本发明基于以下发现：长时间连续测量系列的质谱质量下降只是部分由探测器增益下降造成的，另一个重要原因是每个离子发生脉冲的可用离子数减少，而这是由几种难以调节的现象造成的。本发明现在建议只调节探测器增益，这样不仅可以补偿探测器增益的下降，还可以补偿每个离子发生脉冲可用离子数的下降。
• LOHMAR R.; STEGLICH W., CHEM. BER., 1980, 113, NO 12, 3706-3715
  作者：LOHMAR R.、 STEGLICH W.

  DOI：——

  日期：——
• DI-CINNAMYL COMPOUNDS AND METHODS FOR USE THEREOF
  申请人：Dershem Stephen M.

  公开号：US20090288768A1

  公开（公告）日：2009-11-26

  The invention generally relates to di-cinnamyl compounds useful in a variety of adhesive applications. More specifically, the invention provides chain-extended bismaleimides and methods for generating them by reaction with di-cinnamyl compounds, including particular di-cinnamyl compounds disclosed herein. Invention di-cinnamyl compounds can also be used as co-monomers in a Diels-Alder type cure, and can act as a co-monomer in a thermoset composition with a maleimide monomer.
• MAINTAINING SPECTRAL QUALITY OVER LONG MEASURING PERIODS IN IMAGING MASS SPECTROMETRY
  申请人：Bruker Daltonik GmbH

  公开号：US20200258728A1

  公开（公告）日：2020-08-13

  The invention relates to imaging mass spectrometry on thin sample sections, in particular using MALDI, where a high lateral image resolution means that a plethora of mass spectra has to be acquired and the image acquisition runs over many hours. The quality of the mass spectra deteriorates considerably over time in such cases. The invention is based on the finding that the decrease in spectral quality of continuous measurement series over many hours is only partially caused by a decrease in detector gain, and that another significant cause is a decrease in the number of usable ions per ion generating pulse, which is attributable to several phenomena that are difficult to regulate. The invention now proposes to instead regulate only the detector gain, and such that not only the decrease in the detector gain is compensated, but also the decrease in the number of usable ions per ion generating pulse.