tert-butyl-(3,7-dimethylocta-2,6-dienoxy)-dimethylsilane | 145119-66-0

• 分子结构分类: 有机化合物 - 脂质和类脂质分子 - 异戊烯醇脂质
• 英文名称: tert-butyl-(3,7-dimethylocta-2,6-dienoxy)-dimethylsilane
• CAS: 145119-66-0
• 化学式: C₁₆H₃₂OSi
• 分子量: 268.515
• InChiKey: YBZVVVHOGQSWSO-UHFFFAOYSA-N

物化性质

• 沸点：
  302.7±21.0 °C(Predicted)
• 密度：
  0.834±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  5.7
• 重原子数：
  18.0
• 可旋转键数：
  6.0
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.75
• 拓扑面积：
  9.23
• 氢给体数：
  0.0
• 氢受体数：
  1.0

反应信息

• 作为反应物：
  描述：

  tert-butyl-(3,7-dimethylocta-2,6-dienoxy)-dimethylsilane 在 bismuth(lll) trifluoromethanesulfonate 、 水 、 2,2,6,6-四甲基哌啶氧化物 、 亚碘酰苯 作用下， 以 乙腈 为溶剂， 反应 1.0h， 以82%的产率得到柠檬醛
  参考文献：
  名称：

  TEMPO和助氧化剂对叔丁基二甲基甲硅烷基醚的一锅双（OTf）3催化氧化脱保护

  摘要：

  描述了用于催化伯和仲叔丁基二甲基甲硅烷基（TBDMS）醚的顺序一锅合成，该催化量是将催化量的金属三氟甲磺酸酯和TEMPO与PhIO或PhI（OAc）2结合在THF或乙腈中进行。酸敏感性保护基如亚甲基，异亚丙基，乙缩醛和Boc在反应条件下不受影响。该方法的另一个特征是其对叔丁基二苯基甲硅烷基醚对TBDMS醚的高选择性以及对酚醛TBDMS基团对脂族TBDMS的高选择性。 三氟甲磺酸铋（III）-羰基化合物-氧化-甲硅烷基醚-TEMPO

  DOI：

  10.1055/s-0030-1260980
• 作为产物：
  描述：

  叔丁基二甲基氯硅烷 、 3,7-二甲基-2,6-辛二烯-1-醇 在 咪唑 作用下， 以 二氯甲烷 为溶剂， 反应 1.08h， 以89%的产率得到tert-butyl-(3,7-dimethylocta-2,6-dienoxy)-dimethylsilane
  参考文献：
  名称：

  Harnessing open-source technology for low-cost automation in synthesis: Flow chemical deprotection of silyl ethers using a homemade autosampling system

  摘要：

  An inexpensive homemade 3-axis autosampler was used to facilitate the automation of an acid catalysed flow chemical desilylation reaction. Harnessing open-source software technologies (Python, OpenCV), an automated computer-vision controlled liquid-liquid extraction step was used to provide effective inline purification. A Raspberry Pi single-board computer was employed to interface with the motors used in the autosampler and actuated fluidic valves. (C) 2017 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tetlet.2017.05.008

文献信息

• Base-catalysed reductive relay hydroboration of allylic alcohols with pinacolborane to form alkylboronic esters
  作者：Zi-Chao Wang、Di Shen、Jian Gao、Xian Jia、Youjun Xu、Shi-Liang Shi

  DOI：10.1039/c9cc03459e

  日期：——

  An unprecedented base-catalysed reductive relay hydroboration of allylic alcohols is described. Commercially available nBuLi was found to be a robust transition metal-free initiator for this protocol, affording various boronic esters in high yield and selectivity. Mechanistically, this methodology involves a one-pot three-step successive process (dehydrocoupling/allylic hydride substitution/anti-Markovnikov

  描述了空前的碱催化的烯丙基醇的还原性中继硼氢化。已发现市售的n BuLi是该方案的一种耐用的无过渡金属引发剂，可以高产率和高选择性提供各种硼酸酯。从机理上讲，这种方法涉及一锅三步连续过程（脱氢偶联/烯丙基氢化物取代/反马尔科夫尼科夫硼氢化反应）。
• 10.1021/jacs.4c06601
  作者：Essayan, Daniel E.、Schubach, Matthew J.、Smoot, Jeanelle M.、Puri, Taranee、Pronin, Sergey V.

  DOI：10.1021/jacs.4c06601

  日期：——

  catalyzed by iron complexes and allows for the site-selective hydrofunctionalization of polyenols. Experimental data suggest that coordination of the hydroxy group to the iron hydride intermediate plays an important role in preferential engagement of the allylic alcohol motif and provides a new basis for selectivity in radical hydrofunctionalization events. As a proof of concept, β- and γ-amino alcohols

  描述了氢原子向烯烃的定向转移。该过程由铁络合物催化，并允许多烯醇的位点选择性氢功能化。实验数据表明，羟基与氢化铁中间体的配位在烯丙基醇基序的优先结合中起重要作用，并为自由基氢功能化事件的选择性提供了新的基础。作为概念验证，β-氨基和 γ-氨基醇由相应的多烯醇选择性制备。
• A Lewis Acid Promoted Oxidative Cyclization
  作者：Timothy J. Donohoe、Paul C. M. Winship、Daryl S. Walter

  DOI：10.1021/jo901243y

  日期：2009.8.21

  Replacing trifluoroacetic acid with it catalytic amount of Lewis acid in the osmium mediated oxidative cyclization results in higher yielding reactions that can proceed nearly an order of magnitude faster. The osmium loading can also be reduced to as little its 0.2 mol %. Furthermore, these mildly acidic conditions are capable of tolerating a wide range of acid sensitive protecting groups that are incompatible with previous cyclization conditions.
• One-Pot Bi(OTf)3-Catalyzed Oxidative Deprotection of tert-Butyldimethyl Silyl Ethers with TEMPO and Co-Oxidants
  作者：Jean-Michel Vatèle、Bogdan Barnych

  DOI：10.1055/s-0030-1260980

  日期：2011.9

  A sequential one-pot synthesis for the oxidation of primary and secondary tert-butyldimethylsilyl (TBDMS) ethers, using catalytic amounts of metal triflates and TEMPO in combination with PhIO or PhI(OAc)2 in THF or acetonitrile, is described. Acid-sensitive protecting groups such as methylidene, isopropylidene, acetals, and Boc are unaffected under the reaction conditions. Another feature of this procedure

  描述了用于催化伯和仲叔丁基二甲基甲硅烷基（TBDMS）醚的顺序一锅合成，该催化量是将催化量的金属三氟甲磺酸酯和TEMPO与PhIO或PhI（OAc）2结合在THF或乙腈中进行。酸敏感性保护基如亚甲基，异亚丙基，乙缩醛和Boc在反应条件下不受影响。该方法的另一个特征是其对叔丁基二苯基甲硅烷基醚对TBDMS醚的高选择性以及对酚醛TBDMS基团对脂族TBDMS的高选择性。 三氟甲磺酸铋（III）-羰基化合物-氧化-甲硅烷基醚-TEMPO
• Harnessing open-source technology for low-cost automation in synthesis: Flow chemical deprotection of silyl ethers using a homemade autosampling system
  作者：Matthew O'Brien、Lisette Konings、Matthew Martin、Jordan Heap

  DOI：10.1016/j.tetlet.2017.05.008

  日期：2017.6

  An inexpensive homemade 3-axis autosampler was used to facilitate the automation of an acid catalysed flow chemical desilylation reaction. Harnessing open-source software technologies (Python, OpenCV), an automated computer-vision controlled liquid-liquid extraction step was used to provide effective inline purification. A Raspberry Pi single-board computer was employed to interface with the motors used in the autosampler and actuated fluidic valves. (C) 2017 Elsevier Ltd. All rights reserved.