N-allyl-4-methyl-N-(3-methylbut-2-en-1-yl)benzenesulfonamide | 135979-17-8

• 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: N-allyl-4-methyl-N-(3-methylbut-2-en-1-yl)benzenesulfonamide
• 英文别名: 4-methyl-N-(3-methylbut-2-enyl)-N-prop-2-enylbenzenesulfonamide
• CAS: 135979-17-8
• 化学式: C₁₅H₂₁NO₂S
• 分子量: 279.403
• InChiKey: SEIIERAQWJBUNY-UHFFFAOYSA-N

物化性质

• 沸点：
  389.0±52.0 °C(Predicted)
• 密度：
  1.079±0.06 g/cm3(Predicted)

计算性质

• 辛醇/水分配系数(LogP)：
  3.6
• 重原子数：
  19
• 可旋转键数：
  6
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  45.8
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  N-allyl-4-methyl-N-(3-methylbut-2-en-1-yl)benzenesulfonamide 在 (dppm)PtI₂ 、 PMe₃, AgBF₄ 作用下， 以 硝基甲烷 为溶剂， 反应 0.17h， 以44%的产率得到
  参考文献：
  名称：

  Modular Catalysts for Diene Cycloisomerization:  Rapid and Enantioselective Variants for Bicyclopropane Synthesis

  摘要：

  Deconstructing the tridentate (triphos)Pt(II) first-generation catalysts into mixed diphosphine/monophosphine combinations (P2P) has led to new, more active catalysts for the cycloisomerization of 1,6-, and 1,7-dienes into bicyclo-[3.1.0] and -[4.1.0] products. When the diphosphine was the small bite angle dppm, reaction rates were similar to 20-fold faster than with triphos, although reaction rates and diastereoselectivities were also sensitive to the monophosphine (PMe3 being optimal for rate, PPh3 being optimal for selectivity). When the diphosphine was xyl-BINAP or SEGPHOS, the catalysts were enantioselective, and enantio-ratios up to 98:2 were observed. Both sets of catalysts showed enhanced functional group tolerance in comparison to the original (triphos)Pt2+ catalyst. X-ray structures for both precatalysts are also reported.

  DOI：

  10.1021/ja064335d
• 作为产物：
  描述：

  3-甲基-2-丁烯胺 在 碳酸氢钠 、 caesium carbonate 作用下， 以 1,4-二氧六环 为溶剂， 反应 3.0h， 生成 N-allyl-4-methyl-N-(3-methylbut-2-en-1-yl)benzenesulfonamide
  参考文献：
  名称：

  Methylprenyl and Prenyl Protection for Sulfonamides

  摘要：

  2-Methylprenyl (MePre) is an efficient protection for sulfonamides. The acidic cleavage of this group leads to volatile by-products and the product can be obtained in high purity without additional purification. MePre group is resistant to Pd/C-catalysed hydrogenolysis at 1 atm, Suzuki-Miyaura reaction, Ni(0) catalysis conditions and oxidising reagents such as NIS and DDQ. The prenyl (Pre) group can also be used to protect sulfonamides in certain cases; however, the substrate scope is limited due to the side product formation.

  DOI：

  10.1055/s-0034-1379428

文献信息

• The Influence of Phosphane Ligands on the Versatility of Ruthenium-Indenylidene Complexes in Metathesis
  作者：Julie Broggi、César A. Urbina-Blanco、Hervé Clavier、Anita Leitgeb、Christian Slugovc、Alexandra M. Z. Slawin、Steven P. Nolan

  DOI：10.1002/chem.201000659

  日期：——

  study dealing with the effect of phosphane fine‐tuning in ruthenium–indenylidene catalysts was performed. Challenged to establish how the electronic properties of para‐substituted phosphane ligands translate into catalyst activity, the versatile behaviour of these new ruthenium–indenylidene complexes was investigated for a number of metathesis reactions.

  本研究的目的是开发易于获得且稳定的预催化剂，该催化剂可以轻松地由简单的起始原料大规模制备。基于这样的假设，即用具有不同供电子性质的膦取代经典PCy 3是提高催化活性的直接方法，进行了有关在钌-茚基催化剂中进行膦微调效果的方法研究。挑战在于确定对位取代的膦烷配体的电子性质如何转化为催化剂活性，并针对许多复分解反应研究了这些新型钌-茚基亚配合物的通用行为。
• Aminoxyl-Catalyzed Electrochemical Diazidation of Alkenes Mediated by a Metastable Charge-Transfer Complex
  作者：Juno C. Siu、Joseph B. Parry、Song Lin

  DOI：10.1021/jacs.8b13192

  日期：2019.2.20

  We report the development of a new aminoxyl radical catalyst, CHAMPO, for the electrochemical diazidation of alkenes. Mediated by an anodically generated charge-transfer complex in the form of CHAMPO-N3, radical diazidation was achieved across a broad scope of alkenes without the need for a transition metal catalyst or a chemical oxidant. Mechanistic data support a dual catalytic role for the aminoxyl

  我们报告了一种用于烯烃电化学重氮化的新型氨氧基自由基催化剂 CHAMPO 的开发。在阳极生成的 CHAMPO-N3 形式的电荷转移复合物的介导下，在不需要过渡金属催化剂或化学氧化剂的情况下，在广泛的烯烃中实现了自由基重氮化。机理数据支持氨酰作为​​单电子氧化剂和自由基基团转移剂的双重催化作用。
• Ligand‐Promoted Iron(III)‐Catalyzed Hydrofluorination of Alkenes
  作者：Yongtao Xie、Peng‐Wei Sun、Yuxin Li、Siwei Wang、Mengchun Ye、Zhengming Li

  DOI：10.1002/anie.201902607

  日期：2019.5.20

  An iron‐catalyzed hydrofluorination of unactivated alkenes has been developed. The use of a multidentate ligand and the fluorination reagent N‐fluorobenzenesulfonimide (NFSI) proved to be critical for this reaction, which afforded various fluorinated compounds in up to 94 % yield.

  已经开发出铁催化的未活化烯烃的氢氟化反应。事实证明，使用多齿配体和氟化试剂N-氟苯磺酰亚胺（NFSI）对于该反应至关重要，该反应可提供高达94％的产率的各种氟化化合物。
• Visible-Light Mediated Hydrosilylative and Hydrophosphorylative Cyclizations of Enynes and Dienes
  作者：Hong Hou、Yue Xu、Haibo Yang、Xiaoyun Chen、Chaoguo Yan、Yaocheng Shi、Shaoqun Zhu

  DOI：10.1021/acs.orglett.0c00024

  日期：2020.3.6

  Described herein is a visible-light mediated intermolecular radical cyclization approach to access heterocycles. Heteroatom radicals, such as silicon and phosphorus atom radicals, were generated via direct hydrogen atom abstraction by the photoexcited catalyst species with hydro-silanes and phosphine oxides. The radical addition/cyclization/HAT (hydrogen atom transfer) reaction sequences of 1,6-enynes

  本文描述了可见光介导的分子间自由基环化方法，以接近杂环。杂原子基团，例如硅和磷原子基团，是由光激发的催化剂与氢硅烷和氧化膦通过直接氢原子的提取而产生的。1,6-烯炔和1,6-二烯的自由基加成/环化/ HAT（氢原子转移）反应顺序非常高效，可以高收率传递所需的杂环。
• Metal-Free, Radical Addition to Alkenes<i>via</i>Desulfitative Chlorine Atom Transfer
  作者：Lidong Cao、Karin Weidner、Philippe Renaud

  DOI：10.1002/adsc.201100473

  日期：2011.12

  An efficient method for radical additions to unactivated alkenes via desulfitative chlorine-atom transfer is described. The reaction is based on the use of readily available sulfonyl chlorides as starting materials and cheap radical initiators such as azobisisobutyronitrile (AIBN), di-tert-butyldiazene (DTBD), and dilauroyl peroxide (DLP). No transition metal catalyst is required and the reaction takes

  描述了一种通过脱硫氯原子转移自由基加成至未活化烯烃的有效方法。该反应基于使用容易获得的磺酰氯作为起始原料和廉价的自由基引发剂，例如偶氮二异丁腈（AIBN），二叔丁基二氮烯（DTBD）和二月桂酰过氧化物（DLP）。不需要过渡金属催化剂，该反应在温度≤85°C的温和条件下进行。