(Z)-4,4-bis(ethoxycarbonyl)-1,2-bis(phenylthio)-1,6-heptadiene | 137540-71-7

• 分子结构分类: 有机化合物 - 有机酸及其衍生物 - 羧酸及其衍生物
• 英文名称: (Z)-4,4-bis(ethoxycarbonyl)-1,2-bis(phenylthio)-1,6-heptadiene
• 英文别名: (Z)-1,2-bis(phenylthio)-4,4-dicarbethoxyhepta-1,6-diene；diethyl 2-[(Z)-2,3-bis(phenylsulfanyl)prop-2-enyl]-2-prop-2-enylpropanedioate
• CAS: 137540-71-7
• 化学式: C₂₅H₂₈O₄S₂
• 分子量: 456.627
• InChiKey: MVCFNVFNIKENJS-QOCHGBHMSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.5
• 重原子数：
  31
• 可旋转键数：
  14
• 环数：
  2.0
• sp3杂化的碳原子比例：
  0.28
• 拓扑面积：
  103
• 氢给体数：
  0
• 氢受体数：
  6

反应信息

• 作为产物：
  描述：

  2-烯丙基-2-(2-丙炔基)丙二酸二乙酯 、 二苯二硫醚 在 四(三苯基膦)钯 作用下， 以 苯 为溶剂， 反应 12.0h， 以55%的产率得到(Z)-4,4-bis(ethoxycarbonyl)-1,2-bis(phenylthio)-1,6-heptadiene
  参考文献：
  名称：

  Palladium-catalyzed addition and carbonylative addition of diaryl disulfides and diselenides to terminal acetylenes

  摘要：

  Novel transition-metal-catalyzed reactions of disulfides and diselenides with acetylenes are described. In the of tetrakis(triphenylphosphine)palladium(0), [Pd(PPh3)4], the (1) of diaryl disulfides and diselenides to terminal acetylenes 1 takes place stereoselectively to give high yields of (Z)-1,2-bis(arylthio)-1-alkenes 2 and (Z)-1,2-bis(arylseleno)-1-alkenes 3, respectively. A mechanistic proposal includes the following: (1) oxidative addition of (ArY)2 [Y = S, Se] to low-valent palladium species, (2) stereoselective cis-thiopalladation or cis-selenopalladation to acetylenes to form a cis-vinylpalladium intermediate, and (3) reductive elimination of the product with retention of the stereochemistry. When the reaction of diaryl disulfides and diselenides with terminal acetylenes is performed under the pressure of carbon monoxide, the carbonylative addition occurs to afford (Z)-1,3-bis(arylthio)-2-alken-1-ones 4 and (Z)-1,3-bis(arylseleno)-2-alken-1-ones 5, respectively. Carbon monoxide is regioselectively incorporated on the side of the terminal carbon of the acetylenes.

  DOI：

  10.1021/ja00026a013

文献信息

• Rhodium-Catalyzed Regio- and Stereoselective 1-Seleno-2-thiolation of 1-Alkynes
  作者：Mieko Arisawa、Yoshihiro Kozuki、Masahiko Yamaguchi

  DOI：10.1021/jo034990t

  日期：2003.11.1

  RhH(PPh(3))(4) and 1,1'-bis(diphenylphosphino)ferrocene catalyze the regio- and stereoselective additions of diaryl disulfides and diaryl diselenides to 1-alkynes giving (Z)-1-arylseleno-2-arylthio-1-alkenes. The catalyst promotes the addition reaction of dibutyl disulfide and dibutyl diselenide to 1-octyne with a similar selectivity giving (Z)-1-butylseleno-2-butylthio-1-octene but with a lower catalytic

  铑配合物RhH（PPh（3））（4）和1,1'-双（二苯基膦基）二茂铁催化二芳基二硫化物和二芳基二硒化物向1-炔烃的区域和立体选择性加成反应，生成（Z）-1-芳基硒代2 -芳硫基-1-烯烃。该催化剂以相似的选择性促进二丁基二硫化物和二丁基二硒化物向1-辛炔的加成反应，得到（Z）-1-丁基硒代-2-丁基硫基-1-辛烯，但催化活性较低。当在RhH（PPh（3））（4）和1,4-二苯基膦基丁烷存在下使用过量的二丁基二硫化物对二丁基二硒化物时，可以更高的产率获得相同的产品。