hex-5-enyl 4-methylbenzenesulfonate | 18922-06-0

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯和取代衍生物
• 英文名称: hex-5-enyl 4-methylbenzenesulfonate
• 英文别名: hex-5-en-1-yl 4-methylbenzenesulfonate；5-hexenyl tosylate；hex-5-enyl tosylate；Hex-5-en-1-yl 4-methylbenzene-1-sulfonate
• CAS: 18922-06-0
• 化学式: C₁₃H₁₈O₃S
• 分子量: 254.35
• InChiKey: QWGZFDYGOKJQAE-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.3
• 重原子数：
  17
• 可旋转键数：
  7
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.38
• 拓扑面积：
  51.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  hex-5-enyl 4-methylbenzenesulfonate 在 氧气 、 一水合肼 、 溶剂黄146 、 三苯基膦 作用下， 以 乙醚 、 乙醇 、 Petroleum ether 为溶剂， 反应 3.0h， 生成 5-hexenyl[1-hydroxy-1-methylethyl]diazene
  参考文献：
  名称：

  Jewell, Deborah Rae; Mathew, Lukose; Warkentin, John, Canadian Journal of Chemistry, 1987, vol. 65, p. 311 - 315

  摘要：

  DOI：
• 作为产物：
  描述：

  6-(5,5-dimethyl-1,3,2-dioxaborinan-2-yl)hex-5-en-1-yl 4-methylbenzenesulfonate 在 butane,chlorozinc(1+) 、 双氧水 作用下， 以 四氢呋喃 、 水 为溶剂， 生成 hex-5-enyl 4-methylbenzenesulfonate
  参考文献：
  名称：

  Construction of Cyclopentyl Carbinols from ω-Tosyloxy-1-alkenyl Boronate Esters and Grignard Reagents

  摘要：

  Addition of RMgCl (R = n-Bu, Ph) to pinacol esters of 6-tosyloxy-1-alkenyl boronic acids at -78 degrees C gave the borates, which upon warming to room temperature underwent migration of R on boron to C(l) carbon and concomitant ring construction C-C bond formation between C(2) and C(6), eventually producing cyclopentyl alkyl (or aryl) carbinols after oxidative workup of the borane intermediates with 35% H2O2. Eight examples are presented and the reaction was applied to construction of a cyclohexyl carbinol.

  DOI：

  10.3987/com-08-s(f)69

文献信息

• Iron-Catalyzed Highly Enantioselective Hydrosilylation of Unactivated Terminal Alkenes
  作者：Biao Cheng、Wenbo Liu、Zhan Lu

  DOI：10.1021/jacs.8b01638

  日期：2018.4.18

  The iron-catalyzed highly Markovnikov-type selective and enantioselective hydrosilylation of terminal aliphatic alkenes with good functional group tolerance is developed. This operationally simple protocol uses earth-abundant transition metal catalyst, readily available aliphatic alkenes and hydrosilanes to construct valuable chiral organosilanes with better than 99% ee in most cases. The chiral aliphatic

  开发了铁催化的具有良好官能团耐受性的末端脂肪族烯烃的高度马尔可夫尼科夫型选择性和对映选择性氢化硅烷化。这种操作简单的方案使用地球上丰富的过渡金属催化剂、容易获得的脂肪族烯烃和氢硅烷来构建有价值的手性有机硅烷，在大多数情况下，ee 优于 99%。手性脂肪族链烷-2-醇和手性二羟基硅烷作为酮的类似物可以通过手性有机硅烷的进一步衍生化而有效合成，无需任何外消旋化。
• Diethylzinc-Mediated Radical 1,2-Addition of Alkenes and Alkynes
  作者：Xin Li、Songtao He、Qiuling Song

  DOI：10.1021/acs.orglett.1c00669

  日期：2021.4.16

  A novel diethylzinc-mediated radical 1,2-addition of perfluoroalkyl iodides to unactivated alkenes and alkynes is presented, which demonstrates a novel way to generate an ethyl difluoroacetate radical. This method is highly efficient and gives full conversions of the substrates, high yields of the products, and negligible byproducts and requires no column chromatography purifications. The mild conditions

  提出了一种新颖的由二乙基锌介导的全氟烷基碘与非活化烯烃和炔烃进行的1,2-基自由基加成反应，这表明了一种生成二氟乙酸乙酯基团的新方法。该方法非常高效，可实现底物的完全转化，产物的高收率和可忽略的副产物，并且不需要柱色谱法纯化。温和的条件使该协议能够表现出出色的官能团兼容性。
• Synthesis of 1,1-Dibromo-3-hydroxyalkanes via Opening of Cyclic Sulfates
  作者：Hans Christian Stiasny

  DOI：10.1055/s-1996-4193

  日期：1996.2

  3-Alkoxy-1,1-dibromoalkanes are interesting substrates for diastereoselective bromine/lithium exchange reactions. A general route to the precursor 1,1-dibromo-3-hydroxyalkanes is described here via reaction of dibromomethyllithium with cyclic sulfates of 1,2-diols.

  3-烷氧基-1,1-二溴烷是用于二氨基酸选择性溴锂交换反应的有趣底物。本文通过二溴甲基锂与1,2-二醇的环硫酸酯反应，描述了一种制备前体1,1-二溴-3-羟基烷的通用路线。
• Visible‐Light‐Induced <i>ortho</i> ‐Selective Migration on Pyridyl Ring: Trifluoromethylative Pyridylation of Unactivated Alkenes
  作者：Jinwon Jeon、Yu‐Tao He、Sanghoon Shin、Sungwoo Hong

  DOI：10.1002/anie.201912746

  日期：2020.1.2

  alkenes. The overall process is initiated by the selective addition of a CF3 radical to the alkene to provide a nucleophilic alkyl radical intermediate, which enables an intramolecular endo addition exclusively to the ortho-position of the pyridinium salt. Both secondary and tertiary alkyl radicals are well-suited for addition to the C2-position of pyridinium salts to ultimately provide synthetically

  对于未活化的烯烃的位点选择性三氟甲基化吡啶基化，已经实现了在吡啶基环上的光催化邻位选择性迁移。整个过程是通过将CF3自由基选择性地添加到烯烃中以提供亲核烷基自由基中间体而启动的，该中间体能够将分子内的内含物专门添加到吡啶鎓盐的邻位。仲烷基和叔烷基都非常适合于添加吡啶鎓盐的C 2-位，以最终提供具有合成价值的C 2-氟烷基官能化的吡啶。此外，该方法已成功应用于以P为中心的自由基的反应。复杂生物活性分子的后期功能化进一步证明了这种转化的效用。
• Stereoinversion of Unactivated Alcohols by Tethered Sulfonamides
  作者：Paul T. Marcyk、Latisha R. Jefferies、Deyaa I. AbuSalim、Maren Pink、Mu‐Hyun Baik、Silas P. Cook

  DOI：10.1002/anie.201812894

  日期：2019.2.4

  remains an undeveloped area of organic synthesis. Moreover, catalytic activation of this difficult electrophile with predictable stereo-outcomes presents an even more formidable challenge. Described herein is a simple iron-based catalyst system which provides the mild, direct conversion of secondary and tertiary alcohols to sulfonamides. Starting from enantioenriched alcohols, the intramolecular variant

  未活化醇的直接催化取代仍然是有机合成的未开发领域。此外，具有可预测的立体结果的这种困难的亲电试剂的催化活化提出了甚至更大的挑战。本文描述了一种简单的铁基催化剂体系，该体系提供了仲和叔醇向磺酰胺的温和，直接的转化。从富含对映体的醇开始，分子内变体进行立体转化以产生富含对映体的2-和2,2-取代的吡咯烷和二氢吲哚，而无需事先衍生化醇或溶剂化条件。