3-cyclohexyl-1,1-dimethoxy-2-propene

• 分子结构分类: 有机化合物 - 有机氧化合物
• 英文名称: 3-cyclohexyl-1,1-dimethoxy-2-propene
• 英文别名: [(E)-3,3-dimethoxyprop-1-enyl]cyclohexane
• 化学式: C₁₁H₂₀O₂
• 分子量: 184.279
• InChiKey: HLVBMBDNIYQLPA-CMDGGOBGSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.1
• 重原子数：
  13
• 可旋转键数：
  4
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.82
• 拓扑面积：
  18.5
• 氢给体数：
  0
• 氢受体数：
  2

反应信息

• 作为反应物：
  描述：

  3-cyclohexyl-1,1-dimethoxy-2-propene 在 盐酸 、 sodium tetrahydroborate 作用下， 以 甲醇 、 水 、 N,N-二甲基甲酰胺 为溶剂， 反应 3.0h， 生成 (E)-3-cyclohexyl-2-propen-1-ol
  参考文献：
  名称：

  Novel Inhibitors of Staphyloxanthin Virulence Factor in Comparison with Linezolid and Vancomycin versus Methicillin-Resistant, Linezolid-Resistant, and Vancomycin-Intermediate Staphylococcus aureus Infections in Vivo

  摘要：

  Our previous work (Wang et al. J. Med. Chem. 2016, 59, 4831-4848) revealed that effective benzocycloalkane-derived staphyloxanthin inhibitors against methicillin-resistant Staphylococcus aureus (S. aureus) infections were accompanied by poor water solubility and high hERG inhibition and dosages (preadministration). In this study, 92 chroman and coumaran derivatives as novel inhibitors have been addressed for overcoming deficiencies above. Derivatives 69 and 105 displayed excellent pigment inhibitory activities and low hERG inhibition, along with improvement of solubility by salt type selection. The broad and significantly potent antibacterial spectra of 69 and 105 were displayed first with normal administration in the livers and hearts in mice against pigmented S. aureus Newman, Mu50 (vancomycin-intermediate S. aureus), and NRS271 (linezolid-resistant S. aureus), compared with linezolid and vancomycin. In summary, both 69 and 105 have the potential to be developed as good antibacterial candidates targeting virulence factors.

  DOI：

  10.1021/acs.jmedchem.7b00949
• 作为产物：
  描述：

  3-cyclohexyl-1,1-dimethoxypropane 在 溴 、 potassium carbonate 、 一水合肼 作用下， 以 二氯甲烷 、 二甲基亚砜 为溶剂， 反应 11.05h， 生成 3-cyclohexyl-1,1-dimethoxy-2-propene
  参考文献：
  名称：

  α，β-不饱和醛的新型制备。苯硒酸化物促进从α-溴缩醛中消除HBr

  摘要：

  研究了乙酰化，α-溴化，亲核性苯硒基化，氧化消除/水解作为醛类α，β-脱氢的新方法。用溴在二氯甲烷中的乙缩醛处理得到相应的α-溴缩醛，产率为80-90％。然后，通过用由二苯基二硒化物，肼和碳酸钾在二甲基亚砜中原位生成的苯硒酸酯处理，可以方便地实现亲核性苯基硒烯基化。无支链的α-溴缩醛可干净地提供取代产物，而β和γ支链的则通过形式上的溴化氢损失而产生大量的α，β-不饱和缩醛。这些混合物的氧化消除/水解以50-80％的总产率提供α，β-不饱和醛。在叔α-溴缩醛的情况下，用苯硒烯酸酯处理仅得到作为异构体混合物的脱氢溴化产物。发现至少催化量的有机硒试剂的存在对于烯烃形成至关重要。提出了一种SET机制，包括苯硒酸酯诱导的电子转移到卤化物，溴离子的损失以及氢原子或质子/电子，用于苯甲酸酯促进的消除反应。旨在在分子内环化或开环反应中捕获以碳为中心的自由基的实验未能提供任何自由基中间体的证据。发现至少催化

  DOI：

  10.1021/jo9917644

文献信息

• One-Pot Preparation of (<i>E</i>)-α,β-Unsaturated Aldehydes by a Julia–Kocienski Reaction of 2,2-Dimethoxyethyl PT Sulfone Followed by Acid Hydrolysis
  作者：Kaori Ando、Haruka Watanabe、Xiaoxian Zhu

  DOI：10.1021/acs.joc.1c00479

  日期：2021.5.7

  (E)-α,β-Unsaturated aldehydes were synthesized by the Julia–Kocienski reaction of 2,2-dimethoxyethyl 1-phenyl-1H-tetrazol-5-yl (PT) sulfone 3 with various aldehydes, followed by acid hydrolysis. The reaction could be carried out in one pot, and various (E)-α,β-unsaturated aldehydes were obtained in a short time and with high yields.

  （E）-α，β-不饱和醛是通过2，2-二甲氧基乙基1-苯基-1 H-四唑-5-基（PT）砜3的Julia-Kocienski反应与各种醛合成的，然后进行酸水解。该反应可以在一个锅中进行，并且在短时间内以高收率获得了各种（E）-α，β-不饱和醛。
• Novel Inhibitors of Staphyloxanthin Virulence Factor in Comparison with Linezolid and Vancomycin versus Methicillin-Resistant, Linezolid-Resistant, and Vancomycin-Intermediate <i>Staphylococcus aureus</i> Infections in Vivo
  作者：Shuaishuai Ni、Hanwen Wei、Baoli Li、Feifei Chen、Yifu Liu、Wenhua Chen、Yixiang Xu、Xiaoxia Qiu、Xiaokang Li、Yanli Lu、Wenwen Liu、Linhao Hu、Dazheng Lin、Manjiong Wang、Xinyu Zheng、Fei Mao、Jin Zhu、Lefu Lan、Jian Li

  DOI：10.1021/acs.jmedchem.7b00949

  日期：2017.10.12

  Our previous work (Wang et al. J. Med. Chem. 2016, 59, 4831-4848) revealed that effective benzocycloalkane-derived staphyloxanthin inhibitors against methicillin-resistant Staphylococcus aureus (S. aureus) infections were accompanied by poor water solubility and high hERG inhibition and dosages (preadministration). In this study, 92 chroman and coumaran derivatives as novel inhibitors have been addressed for overcoming deficiencies above. Derivatives 69 and 105 displayed excellent pigment inhibitory activities and low hERG inhibition, along with improvement of solubility by salt type selection. The broad and significantly potent antibacterial spectra of 69 and 105 were displayed first with normal administration in the livers and hearts in mice against pigmented S. aureus Newman, Mu50 (vancomycin-intermediate S. aureus), and NRS271 (linezolid-resistant S. aureus), compared with linezolid and vancomycin. In summary, both 69 and 105 have the potential to be developed as good antibacterial candidates targeting virulence factors.
• Novel Preparation of α,β-Unsaturated Aldehydes. Benzeneselenolate Promotes Elimination of HBr from α-Bromoacetals
  作者：Andrei Vasil'ev、Lars Engman

  DOI：10.1021/jo9917644

  日期：2000.4.1

  elimination/hydrolysis of these mixtures afforded alpha,beta-unsaturated aldehydes in 50-80% overall yields. In the case of tertiary alpha-bromoacetals, treatment with benzeneselenolate afforded only dehydrobromination products as mixtures of isomers. The presence of at least a catalytic amount of the organoselenium reagent was found to be crucial for olefin formation. A SET-mechanism, involving benzeneselenolate-induced

  研究了乙酰化，α-溴化，亲核性苯硒基化，氧化消除/水解作为醛类α，β-脱氢的新方法。用溴在二氯甲烷中的乙缩醛处理得到相应的α-溴缩醛，产率为80-90％。然后，通过用由二苯基二硒化物，肼和碳酸钾在二甲基亚砜中原位生成的苯硒酸酯处理，可以方便地实现亲核性苯基硒烯基化。无支链的α-溴缩醛可干净地提供取代产物，而β和γ支链的则通过形式上的溴化氢损失而产生大量的α，β-不饱和缩醛。这些混合物的氧化消除/水解以50-80％的总产率提供α，β-不饱和醛。在叔α-溴缩醛的情况下，用苯硒烯酸酯处理仅得到作为异构体混合物的脱氢溴化产物。发现至少催化量的有机硒试剂的存在对于烯烃形成至关重要。提出了一种SET机制，包括苯硒酸酯诱导的电子转移到卤化物，溴离子的损失以及氢原子或质子/电子，用于苯甲酸酯促进的消除反应。旨在在分子内环化或开环反应中捕获以碳为中心的自由基的实验未能提供任何自由基中间体的证据。发现至少催化