(Z)-1-Bromo-3-phenyl-1-butene | 119406-00-7

• 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: (Z)-1-Bromo-3-phenyl-1-butene
• 英文别名: [(Z)-4-bromobut-3-en-2-yl]benzene
• CAS: 119406-00-7
• 化学式: C₁₀H₁₁Br
• 分子量: 211.101
• InChiKey: HOSFCNKKWFRZGG-FPLPWBNLSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  3.7
• 重原子数：
  11
• 可旋转键数：
  2
• 环数：
  1.0
• sp3杂化的碳原子比例：
  0.2
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为产物：
  描述：

  (4,4-dibromobut-3-en-2-yl)benzene 在 四(三苯基膦)钯 、 三正丁基氢锡 作用下， 以 苯 为溶剂， 以84%的产率得到(Z)-1-Bromo-3-phenyl-1-butene
  参考文献：
  名称：

  几何上纯净的（Z）-1-溴-1-烯烃的通用简便合成方法

  摘要：

  氢化三丁基锡对钯催化的1,1-二溴-1-烯烃的氢解反应进行得很顺利，从而以良好的收率获得了具有出色立体选择性的（Z）-1-溴-1-烯烃。通过在二氯甲烷中将CBr 4和Ph 3 P组合进行醛的二溴甲基化，然后连续进行氢解，一锅得到（Z）-1-溴-1-烯烃。

  DOI：

  10.1016/s0040-4039(96)01461-x

文献信息

• Stereochemistry in carbenoid formation by bromine/lithium and bromine/zinc exchange reactions of gem-dibromo compounds
  作者：Toshiro Harada、Takeshi Katsuhira、Kazuhiro Hattori、Akira Oku

  DOI：10.1016/s0040-4020(01)85284-4

  日期：——

  bromine/lithium and bromine/zinc exchange reactions take place preferentially at the sterically more hindered bromine atom of the starting gem-dibromo compounds. The observation is rationalized by an exchange mechanism involving a linear transition state of either an ate complex formation or an SN2 reaction at the more hindered bromine atom where strain relief due to the elongation of the carbon-bromine bond is

  通过宝石的溴/金属交换反应生成锂和锌酸类胡萝卜素的立体化学已经研究了分别与BuLi和三有机锌酸锂形成的二溴化合物。已证明，衍生自1，1-二溴烯烃的锂和锌酸酯类化合物在低温下是构型稳定的，而在未反应的起始二溴烯烃的存在下，锂类化合物而不是锌酸酯类化合物在类胡萝卜素碳上容易进行异构化。在起始二溴环丙烷存在下，衍生自1,1-二溴环丙烷的Zincate类胡萝卜素在类胡萝卜素碳上缓慢进行异构化。事实证明，锂和锌酸盐类胡萝卜素的异构化反应是通过涉及类胡萝卜素与起始二溴化合物之间的溴/金属交换的机理进行的。在1,1-二溴烯烃在热力学条件下的反应中观察到锂类胡萝卜素的高度立体选择性形成。在动力学控制的条件下，溴/锂和溴/锌的交换反应均优先发生在起始位点的空间受阻溴原子上宝石-二溴化合物。通过交换机制合理化该观察，该交换机制涉及在受阻溴原子处的盐配合物形成或S N 2反应的线性过渡态，在这种情况下，由于碳-溴键的延长，应力会减轻。
• A general and convenient synthetic method of geometrically pure (Z)-1-bromo-1-alkenes
  作者：Jun'ichi Uenishi、Reiko Kawahama、Yasuhiko Shiga、Osamu Yonemitsu、Jiro Tsuji

  DOI：10.1016/s0040-4039(96)01461-x

  日期：1996.9

  Palladium catalyzed hydrogenolysis of 1,1-dibromo-1-alkenes by tributyltin hydride proceeds smoothly to give (Z)-1-bromo-1-alkenes with excellent stereoselectivity in good yields. Dibromomethylenation of aldehydes by a combination of CBr4 and Ph3P in methylene chloride and the successive hydrogenolysis affords (Z)-1-bromo-1-alkenes in one-pot.

  氢化三丁基锡对钯催化的1,1-二溴-1-烯烃的氢解反应进行得很顺利，从而以良好的收率获得了具有出色立体选择性的（Z）-1-溴-1-烯烃。通过在二氯甲烷中将CBr 4和Ph 3 P组合进行醛的二溴甲基化，然后连续进行氢解，一锅得到（Z）-1-溴-1-烯烃。
• Reactions of 1,1-dihaloalkenes with triorganozincates: a novel method for the preparation of alkenylzinc species associated with carbon-carbon bond formation
  作者：Toshiro Harada、Takeshi Katsuhira、Daiji Hara、Yasuo Kotani、Keiji Maejima、Ryousuke Kaji、Akira Oku

  DOI：10.1021/jo00070a027

  日期：1993.8

  Lithium trialkylzincates react with 1,1-dibromoalkenes 1 and 1-bromo-1-chloroalkenes 2 at -85-degrees-C in THF to give 1-bromoalkenes 5 and 1-chloroalkenes 7, respectively, upon hydrolysis. The intermediate (1-haloalkenyl)zincates 4 and 6 are stable at low temperature but, when allowed to warm to 0-degrees-C, they undergo a 1,2-alkyl migration reaction to afford alkenylzinc species 10. A variety of alkylation products 11 are obtained by the hydrolysis of 10. In the presence of (Ph3P)2Pd (5 mol%), alkenylzinc species 10 react smoothly with organic halides (AcCl, EtOCOCl, CH2=CH-(Me)Br, PhBr) to yield the corresponding coupling products 13-16.
• Stereochemistry in carbenoid formation by bromine/lithium and bromine/zinc exchange reactions of 1,1-dibromoalkenes: higher reactivity of the sterically more hindered bromine atom
  作者：Toshiro Harada、Takeshi Katsuhira、Akira Oku

  DOI：10.1021/jo00048a002

  日期：1992.10

  Both lithium and zincate carbenoids (R1-(R2)C=C(Br)M; M = Li and Zn(Bu)2Li) generated by the halogen/metal exchange reaction of 1,1-dibromoalkene 1 with BuLi and (Bu)3ZnLi, respectively, are configurationally stable at low temperatures, but in the presence of excess 1, the lithium carbenoids undergo facile isomerization at the carbenoid carbons. Under kinetically controlled conditions, both the Br/Li and Br/Zn exchange reactions take place preferentially at the sterically more hindered bromine atom of 1.
• Stereoselective Hydrogenolysis of 1,1-Dibromo-1-alkenes and Stereospecific Synthesis of Conjugated (<i>Z</i>)-Alkenyl Compounds
  作者：Jun'ichi Uenishi、Reiko Kawahama、Osamu Yonemitsu、Jiro Tsuji

  DOI：10.1021/jo9812781

  日期：1998.11.1

  The Pd-catalyzed hydrogenolysis of 1,1-dibromoalkenes with Bu3SnH occurs at room temperature stereoselectively to give (Z)-1-bromo-1-alkenes. We sought to determine the optimal reaction conditions and illustrate the scope of this method with 32 dibromoalkenes including alkenyl- and alkynyl-conjugated 1,l-dibromo-l-alkenes 7a-h and 2,2-disubstituted I,1-dibromo-1-alkenes 9a-f. Triphenylphosphine was the best ligand for the Pd-catalyzed hydrogenolysis. A wide range of solvents can be used for this reaction excluding EtOH, AcOH, and CHCl3. However, the reaction proceeds even in these solvents with the addition of a cosolvent or radical scavenger. The reaction of 1,1-diiodo-1-alkene (3) gave a mixture of (Z)-1-iodo-1-alkene (4), (Z)-1-tributylstannyl-1-alkene (5), and a terminal alkene 6, while that of 1,1-dichloroalkene did not occur. This selectivity can be explained by the stereoselective insertion of Pd(0) to a trans bromine-alkenyl carbon bond, successive transmetalation with Bu3SnH, and reductive elimination. The Suzuki and Sonogashira couplings of the resulting (Z)-1-bromo-1-alkenes with alkenyl(dialkoxy)borane and terminal alkyne occurred to give conjugated polyenes and enynes stereospecifically. The Pd-catalyzed hydrogenolysis of 1,l-dibromo-l-alkene and successive cross-coupling can be carried out either in a stepwise manner or in one-pot under the same Pd catalysis. These two processes should be useful for the synthesis of geometrically pure polyene and enyne with a Z-alkenyl unit.