3,3-dimethylcyclohex-1-en-1-yl trifluoromethanesulfonate | 849405-73-8

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 有机磺酸及其衍生物
• 英文名称: 3,3-dimethylcyclohex-1-en-1-yl trifluoromethanesulfonate
• 英文别名: (3,3-Dimethylcyclohexen-1-yl) trifluoromethanesulfonate；(3,3-dimethylcyclohexen-1-yl) trifluoromethanesulfonate
• CAS: 849405-73-8
• 化学式: C₉H₁₃F₃O₃S
• 分子量: 258.262
• InChiKey: IKIVIXTXHQWGMZ-UHFFFAOYSA-N

物化性质

• 沸点：
  259.6±40.0 °C(Predicted)
• 密度：
  1.32±0.1 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  16
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.78
• 拓扑面积：
  51.8
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  3,3-dimethylcyclohex-1-en-1-yl trifluoromethanesulfonate 在 四(三苯基膦)钯 六甲基二锡 、 lithium chloride 、 N-碘代丁二酰亚胺 作用下， 以 四氢呋喃 、 二氯甲烷 为溶剂， 反应 3.0h， 以55%的产率得到1-iodo-3,3-dimethylcyclohex-1-ene
  参考文献：
  名称：

  First Approach to the Frondosin C Ring System via a Tandem Cyclization/Claisen Rearrangement Sequence

  摘要：

  [GRAPHICS]A one-pot tandem 5-exo cyclization/Claisen rearrangement strategy is utilized as the key step in the straightforward construction of the tetracyclic ring system of frondosin C. This reaction is done under microwave irradiation in the presence of catalytic MeLi.

  DOI：

  10.1021/ol050144o
• 作为产物：
  描述：

  N-苯基双(三氟甲烷磺酰)亚胺 、 3,3-dimethyl-1-(trimethylsiloxy)cyclohexene 在 甲基锂 、 四甲基乙二胺 作用下， 以 四氢呋喃 为溶剂， 反应 1.5h， 生成 3,3-dimethylcyclohex-1-en-1-yl trifluoromethanesulfonate
  参考文献：
  名称：

  First Approach to the Frondosin C Ring System via a Tandem Cyclization/Claisen Rearrangement Sequence

  摘要：

  [GRAPHICS]A one-pot tandem 5-exo cyclization/Claisen rearrangement strategy is utilized as the key step in the straightforward construction of the tetracyclic ring system of frondosin C. This reaction is done under microwave irradiation in the presence of catalytic MeLi.

  DOI：

  10.1021/ol050144o

文献信息

• Enantioselective [2 + 2] Cycloaddition of Unactivated Alkenes with α-Acyloxyacroleins Catalyzed by Chiral Organoammonium Salts
  作者：Kazuaki Ishihara、Kazuhiko Nakano

  DOI：10.1021/ja073435w

  日期：2007.7.1

  enantioselective [2 + 2] cycloaddition reaction of unactivated alkenes with α-acyloxyacroleins to give optically active 1-acyloxycyclobutanecarbaldehydes and subsequent ring expansion to give optically active 2-hydroxycyclopentanone derivatives. Organoammonium salt, H-L-Phe-L-Leu-N(CH2CH2)2-reduced triamine•2.6HNTf2, is a highly effective chiral catalyst for the above enantioselective [2 + 2] cycloaddition. Thus

  我们报告了未活化烯烃与 α-酰氧基丙烯醛的有机催化对映选择性 [2 + 2] 环加成反应的第一个例子，得到光学活性的 1-酰氧基环丁烷甲醛，随后扩环得到光学活性的 2-羟基环戊酮衍生物。有机铵盐，HL-Phe-L-Leu-N(CH2CH2)2-还原的三胺•2.6HNTf2，是上述对映选择性[2+2]环加成反应的高效手性催化剂。因此，我们通过两个步骤开发了一种新颖且有用的形式对映选择性 [2 + 3] 环加成。
• Steric effects on deprotonative generation of cyclohexynes and 1,2-cyclohexadienes from cyclohexenyl triflates by magnesium amides
  作者：Yuto Hioki、Atsunori Mori、Kentaro Okano

  DOI：10.1016/j.tet.2020.131103

  日期：2020.5

  Steric effects on the deprotonative generation of cyclohexynes and 1,2-cyclohexadienes from cyclohexenyl triflates are described. A cyclohexenyl triflate, which is readily available from nonsubstituted cyclohexanone, was selectively converted to cyclohexyne using magnesium bis(2,2,6,6-tetramethylpiperidide) as base. The generated cyclohexyne was trapped by 1,3-diphenylisobenzofuran to afford the cycloadduct

  描述了对从环己烯基三氟甲磺酸酯产生的环己炔和1,2-环己二烯的去质子化的立体效应。使用二（2,2,6,6-四甲基哌啶镁）镁将可从非取代的环己酮容易获得的环己烯基三氟甲磺酸酯选择性地转化为环己炔。产生的环己炔被1，3-二苯基异苯并呋喃捕获，得到环加合物。该方法也适用于由α-四氢萘酮制备的苯并稠合的环己烯基三氟甲磺酸酯。将在3-位带有两个甲基取代基的环己烯基三氟甲磺酸酯选择性转化为相应的1,2-环己二烯。该1，2-环己二烯与1，3-二苯基异苯并呋喃，苯乙烯和硝酮反应，以高收率提供相应的环加合物。
• Catalytic Cross-Metathesis Reactions That Afford <i>E</i>- and <i>Z</i>-Trisubstituted Alkenyl Bromides: Scope, Applications, and Mechanistic Insights
  作者：Tobias Koengeter、Can Qin、Binh Khanh Mai、Qinghe Liu、Yucheng Mu、Peng Liu、Amir H. Hoveyda

  DOI：10.1021/jacs.2c13289

  日期：2023.2.15

  (MAP) complexes, one purchasable and the other accessible by well-established protocols. Substrates, such as feedstock trisubstituted olefins, can be purchased; the alkenyl bromide reagents are commercially available or can be prepared in two steps in a multigram scale. The catalytic process can be used to generate products that contain polar moieties, such as an amine or an alcohol, or sterically hindered

  末端具有溴化物和甲基的立体化学定义的三取代烯烃可以通过催化交叉偶联轻松地立体保留衍生，从而提供在许多生物活性天然产物中发现的不饱和片段。生成此类实体的直接方法是通过立体控制催化交叉复分解（CM）。然而，这样的方法很少。在这里，我们提出了三-、 Z-或E-二或单取代烯烃与Z-或E -2-溴-2-丁烯之间的CM立体保留策略，提供了各种E-或Z-三取代烯基溴。大多数转化是由两种钼单芳氧基吡咯烷 (MAP) 络合物催化，一种可购买，另一种可通过完善的方案获得。底物，例如原料三取代烯烃，可以购买；烯基溴试剂是可商购的或者可以以多克规模分两步制备。催化过程可用于生成含有极性部分的产物，例如胺或醇，或α-或β-支化的空间位阻烯烃。该方法的实用性通过 phomactin A 不饱和片段的简短立体控制合成和龙涎香的简明全合成得到强调。这些研究的一个意想不到的结果是发现了小分子烯烃在烯烃复分解反应中的新作用。
• Nickel‐Catalyzed Reductive Coupling of Vinyl Triflates and 1,4‐Dicyanobenzene to Access Alkenyl Nitriles
  作者：Le‐Le Wang、Zhong‐Xian Li、Jun Zhu

  DOI：10.1002/adsc.202301072

  日期：2024.2.19

  We report a vinyl cyanation reaction of vinyl triflates and readily available 1,4-dicyanobenzene through a nickel-catalyzed reductive coupling process. The reaction is operated under mild conditions with remarkable functional-group compatibility. Cyclic vinyl triflates with various ring sizes and substituents at different positions all reacted smoothly. The synthetic utility is demonstrated by the

  我们报告了乙烯基三氟甲磺酸酯和容易获得的 1,4-二氰基苯通过镍催化还原偶联过程的乙烯基氰化反应。该反应条件温和，官能团相容性好。不同环尺寸和不同位置取代基的环状乙烯基三氟甲磺酸酯均能顺利反应。合成效用通过药物和天然化合物的衍生化、放大合成和各种官能团转化来证明。初步机理研究表明，三氟甲磺酸乙烯酯对镍催化剂的氧化加成反应比 1,4-二氰基苯更具反应性。
• Antiandrogenic, Maspin Induction, and Antiprostate Cancer Activities of Tanshinone IIA and Its Novel Derivatives with Modification in Ring A
  作者：Weiguo Liu、Jinming Zhou、Guoyan Geng、Qingwen Shi、Francoise Sauriol、Jian Hui Wu

  DOI：10.1021/jm2015292

  日期：2012.1.26

  Expression of metastatic suppressor maspin is lost in advanced prostate cancer. Clinically relevant mutations in androgen receptor (AR) convert antiandrogens into AR agonists, promoting prostate tumor growth. We discovered tanshinone IIA (TS-IIA) is a potent antagonist of mutated ARs and induces maspin expression through AR. TS-IIA suppressed AR expression and induced apoptosis in LNCaP cells. Syntheses of TS-IIA derivatives (1-9) revealed that the 4,4-dimethyl group at ring A is important for TS-IIA's antiandrogenic and maspin induction activities.