potassium trans-3-phenyl-1-propen-1-yltrifluoroborate

• 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: potassium trans-3-phenyl-1-propen-1-yltrifluoroborate
• 英文别名: potassium (E)-(3-phenyl-1-propen-1-yl)trifluoroborate；Potassium (E)-3-phenylpropenyl-1-trifluoroborate；potassium;trifluoro-[(E)-3-phenylprop-1-enyl]boranuide
• 化学式: C₉H₉BF₃*K
• 分子量: 224.075
• InChiKey: SNELUEBTICJTGF-ZFXMFRGYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  0.18
• 重原子数：
  14
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.11
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  4

反应信息

• 作为反应物：
  描述：

  potassium trans-3-phenyl-1-propen-1-yltrifluoroborate 、 氯乙酸叔丁酯 在 XPhos Pd G2 、 potassium carbonate 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 12.0h， 以66%的产率得到(E)-tert-butyl 5-phenylpent-3-enoate
  参考文献：
  名称：

  Pd-Catalyzed Cross-Coupling of Potassium Alkenyltrifluoroborates with 2-Chloroacetates and 2-Chloroacetamides

  摘要：

  A protocol for the stereocontrolled synthesis of (E)- and (Z)-beta,gamma-unsaturated esters and amides is reported. 2-Chloroacetates as well as secondary and tertiary 2-chloroacetamides were successfully employed as electrophiles in the Suzuki-Miyaura cross-coupling reaction with potassium (E)- and (Z)-alkenyltrifluoroborates, affording the corresponding products in high yield.

  DOI：

  10.1021/ol401377q
• 作为产物：
  描述：

  二氟化氢钾 、 反式-3-苯基丙烯-1-基-硼酸 以 四氢呋喃 、 水 为溶剂， 反应 4.0h， 以87%的产率得到potassium trans-3-phenyl-1-propen-1-yltrifluoroborate
  参考文献：
  名称：

  可见光诱导的乙烯基三氟硼酸钾通过光氧化还原催化合成各种三氟甲基化的烯烃。

  摘要：

  已经开发了通过自由基介导的三氟硼酸乙烯基酯的三氟甲基化来容易地合成三氟甲基化的烯烃。Togni的试剂在可见光照射下，在光氧化还原催化剂[Ru（bpy）（3）]（PF（6））（2）的存在下充当CF（3）自由基前体。这种新的光催化方案可适用于多种含有电子多样性取代基和杂芳族化合物的乙烯基硼酸酯。

  DOI：

  10.1039/c3cc39235j

文献信息

• Enantioselective Alkenylation of Aldimines Catalyzed by a Rhodium–Diene Complex
  作者：Zhe Cui、Ya-Jing Chen、Wen-Yun Gao、Chen-Guo Feng、Guo-Qiang Lin

  DOI：10.1021/ol5000154

  日期：2014.2.7

  An efficient rhodium-catalyzed asymmetric addition reaction of potassium alkenyltrifluoroborates to N-nosylaldimines has been developed. Under optimal conditions, the reactions proceeded with good to excellent yields and excellent enantioselectivities (97 → 99% ee). The utility of this method is demonstrated by the formal synthesis of (−)-aurantioclavine.

  已经开发了有效的铑催化的烯基三氟硼酸钾与N- nosylaldimines的不对称加成反应。在最佳条件下，反应以良好的收率和优异的对映选择性（97→99％ee）进行。该方法的效用通过（-）-aurantioclavine的形式合成得到了证明。
• Enantioselective Organo-SOMO Catalysis:  The α-Vinylation of Aldehydes
  作者：Hahn Kim、David W. C. MacMillan

  DOI：10.1021/ja077212h

  日期：2008.1.1

  enantioenriched α-vinyl aldehydes. The described reaction procedure achieves carbon−carbon bond formation in an efficient manner with consistently high levels of enantioinduction and geometrical control for the trans-olefin product. A wide range of both aldehydes and potassium organotrifluoroborate salts, including those typically susceptible to oxidative conditions, are accommodated under the reaction conditions

  醛的第一个对映选择性有机催化α-乙烯基化已经完成。手性烯胺的选择性氧化源自醛和手性仲胺催化剂的缩合，导致产生存在于不对称环境中的高活性自由基阳离子。这些 SOMO 活化的物质与容易获得的有机三氟硼酸钾盐直接偶联，产生富含对映体的 α-乙烯基醛。所描述的反应程序以有效的方式实现了碳-碳键的形成，对反式烯烃产物具有始终如一的高水平对映诱导和几何控制。各种醛和有机三氟硼酸钾盐，包括那些通常对氧化条件敏感的盐，都适用于反应条件。
• Selective Functionalization of Achmatowicz Rearrangement Products by Reactions with Potassium Organotrifluoroborates under Transition-Metal-Free Conditions
  作者：Silvia Roscales、Víctor Ortega、Aurelio G. Csákÿ

  DOI：10.1021/acs.joc.8b01643

  日期：2018.9.21

  The repertoire of synthetic transformations of the products of the Achmatowicz rearrangement has been expanded by exploring their reactivity with potassium organotrifluoroborates in the absence of transition metals. Depending on the reaction conditions and the substitution pattern of the starting material, the reaction may lead to the stereoselective synthesis of dihydropyranones (2,6-trans), tetrahydropyranones

  通过在不存在过渡金属的情况下探索其与有机三氟硼酸钾的反应性，扩大了Achmatowicz重排产物的合成转化的范围。根据反应条件和原料的取代方式，反应可能会导致立体选择性合成二氢吡喃酮（2,6-反式），四氢吡喃酮（2,3-顺式-2,6-顺式）或官能化的1， 4-二羰基化合物。该方法还适用于一锅合成官能化吡咯。
• A Convergent, Modular Approach to Functionalized 2,1-Borazaronaphthalenes from 2-Aminostyrenes and Potassium Organotrifluoroborates
  作者：Steven R. Wisniewski、Courtney L. Guenther、O. Andreea Argintaru、Gary A. Molander

  DOI：10.1021/jo402616w

  日期：2014.1.3

  Azaborines are an important class of compounds with applications in both medicinal chemistry and materials science. The first borazaronaphthalene, 2-chloro-2,1-borazaronaphthalene, was reported in 1959; however, access to more highly functionalized substructures has been limited because of the harsh reaction conditions required to displace the chloride on boron. A convergent approach has been developed to synthesize disubstituted 2,1-borazaronaphthalenes from N-substituted 2-aminostyrenes and potassium organotrifluoroborates, where the potassium organotrifluoroborate is converted to the active R-BX2 species (X = Cl or F) in situ by addition of a fluorophile. Starting from aryl-, heteroaryl-, alkynyl-, alkenyl-, and alkyltrifluoroborates, a library of highly functionalized 2,1-borazaronaphthalenes were synthesized in one step under mild, transition-metal-free conditions.
• Visible-light-induced synthesis of a variety of trifluoromethylated alkenes from potassium vinyltrifluoroborates by photoredox catalysis
  作者：Yusuke Yasu、Takashi Koike、Munetaka Akita

  DOI：10.1039/c3cc39235j

  日期：——

  of trifluoromethylated alkenes by the radical-mediated trifluoromethylation of vinyltrifluoroborates has been developed. Togni's reagent serves as a CF(3) radical precursor in the presence of the photoredox catalyst [Ru(bpy)(3)](PF(6))(2) under visible light irradiation. This new photocatalytic protocol can be applicable to a wide variety of vinylborates containing electronically diverse substituents

  已经开发了通过自由基介导的三氟硼酸乙烯基酯的三氟甲基化来容易地合成三氟甲基化的烯烃。Togni的试剂在可见光照射下，在光氧化还原催化剂[Ru（bpy）（3）]（PF（6））（2）的存在下充当CF（3）自由基前体。这种新的光催化方案可适用于多种含有电子多样性取代基和杂芳族化合物的乙烯基硼酸酯。