1-bromo-2-[2-bromo-3,3,3-trifluoro-1-propenyl]benzene | 1188436-21-6

• 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: 1-bromo-2-[2-bromo-3,3,3-trifluoro-1-propenyl]benzene
• CAS: 1188436-21-6
• 化学式: C₉H₅Br₂F₃
• 分子量: 329.942
• InChiKey: XRPDVIHWYACXEZ-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  4.75
• 重原子数：
  14.0
• 可旋转键数：
  1.0
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  0.0
• 氢给体数：
  0.0
• 氢受体数：
  0.0

反应信息

• 作为反应物：
  描述：

  1-bromo-2-[2-bromo-3,3,3-trifluoro-1-propenyl]benzene 在 溶剂黄146 作用下， 生成 (3E)-3-(2-bromphenyl)-1,1,1-trifluoro-4-phenylbut-3-en-2-one
  参考文献：
  名称：

  α，β二取代的CF 3个-Enones作为三氟甲基构造块：区域选择性的制备取代的共3-CF 3个-Pyrazoles

  摘要：

  阐述了通往新型三氟甲基构件的有效途径。α-CF的反应3个-enamines与芳醛导致α的直接合成，β二芳基CF 3个-enones在高达93％的产率，为分离ë -异构体。使用Zimmerman-Traxler模型提出了可能的反应机理。α，β-二芳基-CF 3-烯酮与肼的反应开辟了一条通往三氟甲基化吡唑啉的新途径。用DDQ氧化吡唑啉打开了对高产分离的3-CF 3-吡唑类化合物进行完全区域选择性制备的途径。使用这种策略，可以合成已知药物Celebrex，Mavacoxib和SC-560的4-芳基化衍生物。

  DOI：

  10.1021/acs.joc.0c02516

文献信息

• Selective synthesis of α-trifluoromethyl-β-aryl enamines or vinylogous guanidinium salts by treatment of β-halo-β-trifluoromethylstyrenes with secondary amines under different conditions
  作者：Vasiliy M. Muzalevskiy、Valentine G. Nenajdenko、Alexander Yu. Rulev、Igor A. Ushakov、Galina V. Romanenko、Aleksey V. Shastin、Elizabeth S. Balenkova、Günter Haufe

  DOI：10.1016/j.tet.2009.06.048

  日期：2009.8

  β-halo-β-trifluoromethylstyrenes with secondary amines under different conditions were discovered. Depending on the electronic properties of the starting styrenes and the reaction parameters, two pathways were found. With neat secondary amines a series of α-trifluoromethyl-β-aryl enamines were prepared in high yields. In contrast, the reactions of the mentioned styrenes with the same amines in polar solvents by substitution

  发现了在不同条件下，β-卤代-β-三氟甲基苯乙烯与仲胺的前所未有的选择性反应。根据起始苯乙烯的电子性质和反应参数，发现了两种途径。用纯净的仲胺以高收率制备了一系列α-三氟甲基-β-芳基烯胺。相反，在极性溶剂中上述苯乙烯与相同胺的反应通过全部卤素原子的取代得到乙烯基类胍盐。讨论了可能的反应机理。
• Fragmentation of Trifluoromethylated Alkenes and Acetylenes by <i>N</i>,<i>N</i>-Binucleophiles. Synthesis of Imidazolines or Imidazolidines (Oxazolidines) Controlled by Substituent
  作者：Valentine G. Nenajdenko、Vasiliy M. Muzalevskiy、Aleksey V. Shastin、Elizabeth S. Balenkova、Evgeniy V. Kondrashov、Igor A. Ushakov、Alexander Yu. Rulev

  DOI：10.1021/jo101107t

  日期：2010.8.20

  The reaction of β-halogeno-β-polyfluoromethylstyrenes with N,N- or N,O-binucleophiles leads to unexpected fragmentation products (imidazolines) or to heterocyclization giving CF3-substituted imidazolidines (N,N-) and oxazolidines (N,O-) depending on aryl substituent. The scope and the reaction mechanism are discussed.

  β-卤代-β-多氟甲基苯乙烯与N，N-或N，O-双亲核试剂的反应会导致意外的裂解产物（咪唑啉）或杂环化反应，生成CF 3取代的咪唑烷（N，N-）和恶唑烷（N，O -）取决于芳基取代基。讨论了反应的范围和机理。
• Synthetic Approach to Alkoxy-β-(trifluoromethyl)styrenes and Their Application in the Synthesis of New Trifluoromethylated Heterocycles
  作者：Valentine Nenajdenko、Günter Haufe、Vasiliy Muzalevskiy、Aleksey Shastin、Elizabeth Balenkova

  DOI：10.1055/s-0029-1216697

  日期：2009.7

  A new convenient stereoselective pathway to alkoxy-β-(trifluoromethyl)styrenes is described. Reactions of β-chloro- and β-bromo-β-(trifluoromethyl)styrenes with sodium methoxide and potassium tert-butoxide led to methoxy- and tert-butoxy-β-(trifluoromethyl)styrenes in good to excellent yields. Bromination of tert-butoxy-β-(trifluoromethyl)styrenes proceeded with formation of aryl(bromo)methyl trifluoromethyl

  描述了一种新的方便的烷氧基-β-（三氟甲基）苯乙烯的立体选择途径。β-氯-和β-溴-β-（三氟甲基）苯乙烯与甲醇钠和叔丁醇钾的反应生成甲氧基-和叔丁氧基-β-（三氟甲基）苯乙烯，收率好至优异。叔丁氧基-β-（三氟甲基）苯乙烯的溴化反应形成芳基（溴）甲基三氟甲基酮。发现后一种化合物是用于合成带有三氟甲基的不同杂环化合物的有用起始原料。以这种方式，以中等至高产率获得了咪唑并吡啶，咪唑并嘧啶，咪唑并苯并咪唑，咪唑并噻唑，噻唑和氨基噻唑的三氟甲基化衍生物。 烯烃-炔烃-醚-氟-杂环-亲核取代
• New approach to the synthesis of trifluoromethylvinyl sulfides
  作者：V. M. Muzalevskiy、A. V. Shastin、E. S. Balenkova、V. G. Nenajdenko

  DOI：10.1007/s11172-007-0236-4

  日期：2007.8

  Nucleophilic substitution reaction of halogen atom in β-chloro-and β-bromo-β-trifluoromethylstyrenes by thiolates was studied. Stereo-and regioselectivity of the reaction with respect to the electronic and sterical properties of substituents in the aromatic ring of starting styrenes was investigated. Regioisomer with geminal trifluoromethyl and alkyl-or arylthio groups was found to be formed predominantly or exclusively. The reaction proceeds stereoselectively in nearly quantitative yields. On this basis, a new convenient stereoselective method for the synthesis of trifluoromethylvinyl sulfides was elaborated.

  研究了β-氯和β-溴-β-三氟甲基苯乙烯中的卤素原子与硫醇的亲核取代反应。研究了反应的立体选择性和区域选择性与起始苯乙烯芳环上取代基的电子和立体性质的关系。发现该反应主要或只形成带有三氟甲基和烷基或芳硫基的区域异构体。该反应以接近定量的收率进行立体选择性反应。在此基础上，详细阐述了合成三氟甲基乙烯基硫化物的一种新的简便立体选择性方法。
• Synthesis of trifluoromethyl alcohols from tert-butoxy-β-(trifluoromethyl)styrenes and trifluoromethylbenzyl ketones under the conditions of the Leuckart–Wallach reaction
  作者：Vasiliy M. Muzalevskiy、Valentine G. Nenajdenko、Aleksey V. Shastin、Elizabeth S. Balenkova、Günter Haufe

  DOI：10.1016/j.jfluchem.2008.06.014

  日期：2008.10

  A novel pathway towards trifluoromethylalcohols by an unexpected reaction of tert-butoxy-β-(trifluoromethyl)styrenes or corresponding trifluoromethylbenzyl ketones under the conditions of the Leuckart–Wallach reaction was elaborated.

  阐述了在Leuckart-Wallach反应条件下，叔丁氧基-β-（三氟甲基）苯乙烯或相应的三氟甲基苄基酮的意外反应导致的向三氟甲基醇的新途径。