2,4,6-trimethylpyrylium triflate | 40927-60-4

• 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: 2,4,6-trimethylpyrylium triflate
• 英文别名: 2,4,6-Trimethylpyrylium trifluoromethanesulfonate；trifluoromethanesulfonate;2,4,6-trimethylpyrylium
• CAS: 40927-60-4
• 化学式: CF₃O₃S*C₈H₁₁O
• 分子量: 272.245
• InChiKey: FCPRZFWDVUXXNH-UHFFFAOYSA-M

计算性质

• 辛醇/水分配系数(LogP)：
  2.54
• 重原子数：
  17
• 可旋转键数：
  0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.44
• 拓扑面积：
  66.6
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为反应物：
  描述：

  2,4,6-trimethylpyrylium triflate 在 C₃₂H₄₂As₂ClF₆NW 、 盐酸 作用下， 以 二氯甲烷-D2 、 乙醚 为溶剂， 以4.5 mg的产率得到2,4,6-collidine hydrochloride
  参考文献：
  名称：

  二氮通过氮化钨合成可力丁

  摘要：

  考虑到 N 2裂解步骤需要与两个 N-C 偶联步骤相结合，已知在均相溶液中从二氮合成吡啶具有挑战性。在此，带有特制的 2,2'-( t Bu 2 As) 2 -取代的二甲苯配体支架的钨络合物被证明能够分裂 N 2以提供相应的氮化钨，而相应的( i Pr 2 As) 2-取代衍生物。然后，前一种氮化物与 2,4,6-三甲基吡咯鎓三氟甲磺酸盐反应，形成钨氧络合物以及可力丁。在此反应过程中，吡喃鎓起始材料的 O 原子通过迄今为止前所未有的骨架编辑过程被 N 原子取代。

  DOI：

  10.1021/jacs.4c02226

文献信息

• Mono- and Bisionic Mo- and W-Based Schrock Catalysts for Biphasic Olefin Metathesis Reactions in Ionic Liquids
  作者：Roman Schowner、Iris Elser、Florian Toth、Emmanuel Robe、Wolfgang Frey、Michael R. Buchmeiser

  DOI：10.1002/chem.201802472

  日期：2018.9.6

  of the first ionic Mo‐ and W‐based Schrock‐type catalysts based on pyridinium and phosphonium tagged aryloxide ligands were prepared. Bisionic complexes of the general formula Mo(Imido)(CHR)(OR′)2(OTf)2 and monoionic monoaryloxide pyrrolide (pyr) (MAP‐type) catalysts [M(Imido)(CHR)(OR′)(pyr)+][A−] were successfully employed and tested in various olefin metathesis benchmark reactions under both, homogeneous

  制备了一系列基于吡啶鎓和phospho标记的芳氧基配体的第一批基于Mo和W的离子型Schrock型离子催化剂。通式为Mo（Imido）（CHR）（OR'）2（OTf）2的双离子配合物和单离子单芳氧基吡咯化物（pyr）（MAP型）催化剂[M（Imido）（CHR）（OR'）（pyr）+ ] [A -在吡咯和均相和双相条件下，均已成功地在各种烯烃复分解基准反应中使用吡咯，并首次使用Schrock型催化剂，将离子液体作为极性相进行了测试。在双相条件下的生产率最高可达到数千倍，与在氯苯或甲苯中进行的反应所获得的生产率相当。含非极性产物的庚烷相中的金属污染小于2 ppm。
• Pyridinium cationic lipids as gene transfer agents
  申请人：Balaban T. Alexandru

  公开号：US20050196863A1

  公开（公告）日：2005-09-08

  Pyridinium cationic lipids useful as non-viral gene delivery agents are disclosed. The agents are prepared by reaction of pyrylium salts with primary amines. Also disclosed are methods of trasfectind cells using the pyridinium cationic lipids as gene transfer agents.

  披萨是一种美味的食物，通常由面团、番茄酱、奶酪和各种配料制成。
• Novel initiators for cationic polymerization
  申请人：MINNESOTA MINING AND MANUFACTURING COMPANY

  公开号：EP0442635A1

  公开（公告）日：1991-08-21

  Disclosed are novel compounds which are useful as initiators for cationically polymerizable monomers. The novel compounds comprise a carbon containing cation (e.g., trimethyloxonium) which is capable of initiating cationic polymerization and a non-nucleophilic counterion which is an at least partially fluorinated hydrocarbylsulfonato metallate (e.g. perfluoroethylsulfonato-aluminate). The disclosed initiators are capable of initiating the cationic polymerization of a wide variety of monomers such as epoxides, tetrahydrofuans, oxazolines, vinyls, lactones, and the like.

  所公开的新型化合物可用作可阳离子聚合单体的引发剂。这些新型化合物包括一个能引发阳离子聚合的含碳阳离子（如三甲基氧 鎓）和一个非亲核反离子，后者是至少部分氟化的烃基磺酰金属酸盐（如全氟乙基磺酰铝 酸盐）。所公开的引发剂能够引发环氧化物、四氢呋喃、噁唑啉、乙烯基、内酯等多种单体的阳离子聚合。
• Synthesis and Structures of Tungsten (1-Pyridinio)imido Complexes and Their Facile N−N Bond Cleavage¹
  作者：Hiroshige Ishino、Shin'ichi Tokunaga、Hidetake Seino、Youichi Ishii、Masanobu Hidai

  DOI：10.1021/ic981116n

  日期：1999.5.1

  The tungsten (1-pyridinio)imido complexes [WX(2)(NNC(5)H(4)OMe)(L)(PMe(2)Ph)(2)](+), [WX(2)(NNC(5)H(2)Me(3))(L)(PMe(2)Ph)(2)](+), and [WCl(2)NNC(5)H(2)(COOEt)(2)Ph}(L)(PMe(2)Ph)(2)](+) (X = Cl, Br; L = CO, C(2)H(4), PMe(2)Ph) were synthesized by the reaction of the salts of pyrylium cations with the hydrazido complexes [WX(2)(NNH(2))(L)(PMe(2)Ph)(2)], which were derived from the dinitrogen complex cis-[W(N(2))(2)(PMe(2)Ph)(4)]. The complexes obtained were characterized by spectroscopic measurements as well as crystallographic studies of cis,mer-[WBr(2)(NNC(5)H(4)OMe-4)(PMe(2)Ph)(3)][PF(6)], cis, trans-[WCl(2)(NNC(5)H(4)OMe-4)(CO)(PMe(2)Ph)(2)][ClO(4)], cis, trans- [WCl(2)(NNC(5)H(2)Me(3)-2,4,6)(CO)(PMe(2)Ph)(2)][OTf] (OTf = OSO(2)CF(3)), and cis,trans-[WCl(2)(NNC(5)H(4)OMe-4)(C(2)H(4))(PMe(2)Ph)(2)][ClO(4)], which revealed that the N-N bond distances of these (1-pyridinio)imido complexes are shorter than those of the trialkyl- or unsubstituted hydrazidium complexes so far reported. The (1-pyridinio)imido complexes with a pi-acidic ligand (CO or C(2)H(4)) undervent smooth N-N bond cleavage on reaction with cobaltocene under ambient conditions to liberate the pyridines in moderate to high yields. In some reactions that were conducted in the presence of HNEt(3)-Cl, the corresponding imido (NH) complexes were recovered as the metal products. The (1-pyridinio)imido complexes also reacted with KOH in MeOH to give the pyridines and ammonia in high yields. These reactions provide the first examples of N-N bond cleavage of well-defined hydrazidium complexes and accomplish the synthesis of pyridines from molecular nitrogen under mild conditions.
• Pyridinium Cationic Lipids as Gene Transfer Agents
  申请人：Balaban Alexandru T.

  公开号：US20090137045A1

  公开（公告）日：2009-05-28

  Pyridinium cationic lipids useful as non-viral gene delivery agents are disclosed. The agents are prepared by reaction of pyrylium salts with primary amines. Also disclosed are methods of trasfectind cells using the pyridinium cationic lipids as gene transfer agents.