(Z)-1-(butyltelluro)but-1-en-3-yne | 142025-06-7

• 分子结构分类: 有机化合物 - 有机氧化合物 - 有机含氧阴离子化合物
• 英文名称: (Z)-1-(butyltelluro)but-1-en-3-yne
• 英文别名: (Z)-1-butyltellanyl-1-buten-3-in；(Z)-1-butylteluto-1-buten-3-yne；1-[(Z)-but-1-en-3-ynyl]tellanylbutane
• CAS: 142025-06-7
• 化学式: C₈H₁₂Te
• 分子量: 235.783
• InChiKey: WIUIYQGEMKYOTL-ALCCZGGFSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  2.06
• 重原子数：
  9
• 可旋转键数：
  4
• 环数：
  0.0
• sp3杂化的碳原子比例：
  0.5
• 拓扑面积：
  0
• 氢给体数：
  0
• 氢受体数：
  0

反应信息

• 作为反应物：
  描述：

  (Z)-1-(butyltelluro)but-1-en-3-yne 在 sodium tetrahydroborate 、 碘 作用下， 以 四氢呋喃 、 水 为溶剂， 反应 1.0h， 生成 (1E,3Z)-4-Butyltellanyl-1,2-diiodo-buta-1,3-diene
  参考文献：
  名称：

  Iodocyclization of (Z)-1-(Butyltelluro)-1,4-diorganylbut-1-en-3-ynes. Synthesis and Reactions of 3-Iodotellurophenes

  摘要：

  The iodocyclization of(Z)-tellurobutenynes 5a-g by reaction with I-2/petroleum ether was studied in detail. 3-Iodotellurophenes 7a-f were formed, and optimum conditions to obtain these compounds in high yields were established. The reaction involves attack of iodide at the initially formed intermediate of type 10 followed by ring closure that is favored by the strong aromatic character of the resulting products. Two possible and alternative pathways for the ring closure are proposed to explain our observations: (a) transformation of 10 to 11 that undergoes further cyclization to give 7a-f (pathway a) or (b) direct cyclization of 10 to give tellurophene diiodide 9 (pathway b). The products and side products obtained are in agreement with the proposed mechanisms. Formation of 7a from ditelluride 14 and iodine provides additional evidence of the intermediacy of 11 (in pathway a). Structures of 7a and 5g were elucidated by X-ray crystallography. In the case of compound 5e, where a terminal triple bond was present, the resulting intermediate of type 10 also underwent the attack of iodide directly at the terminal carbon to give compound 12 together with 7e. Ring-opening of 3-iodotellurophene 7a occurs by reaction with n-butyllithium to form acyclic ditelluride 14 or monotelluride 16 depending on. the alkyllithium amounts employed. Plausible mechanisms for these novel reactions are proposed and supported. Conversion of 7a to 3-(butyltelluro)-2,5-diphenyltellurophen (22) was carried out readily by an unusual ''aromatic nucleophilic substitution'' using the butyl tellurolate anion.

  DOI：

  10.1021/jo961461z
• 作为产物：
  描述：

  丁二炔 、 二丁基二碲 在 sodium tetrahydroborate 作用下， 以 乙醇 为溶剂， 反应 0.25h， 以83%的产率得到(Z)-1-(butyltelluro)but-1-en-3-yne
  参考文献：
  名称：

  1-（Z）-白术醇的全合成

  摘要：

  使用新开发的碲化物合成子和使用碲化乙烯的Negishi型偶联反应的新用途，已实现了具有几种生物活性的天然聚炔醇1-（Z）-白术醇的全合成。

  DOI：

  10.1016/j.tetlet.2006.08.130

文献信息

• (1 Z ,3 Z )-Buta-1,3-dienyl-1-lithium species and substituted tellurophenes by Te/Li exchange on (1 Z ,3 Z )-butyltelluro-1,3-butadienes and (1 Z ,3 Z )-1,4-bis(butyltelluro)-1,3-butadienes
  作者：Miguel J. Dabdoub、Vania B. Dabdoub、Palimécio G. Guerrero、Claudio C. Silveira

  DOI：10.1016/s0040-4020(97)00148-8

  日期：1997.3

  (1Z,3Z)-1-Butyltelluro-1,3-butadienes 8, 9 and 12 obtained by the hydrotelluration of but-1-en-3-ynes 1, 2 and 5 were transformed into the corresponding buta-1,3-dienyl-1-lithium by reaction with n-BuLi. 1,3-Butadienes 14, 15, 17-20 were obtained with retention of the double bond geometry by reaction of the butadienyllithium intermediates with electrophiles. The butadienyllithium 13 obtained by the Te/Li exchange reaction in the (12,3Z)-1-Butyltelluro-4-methoxy-1,3-Butadiene 8 was reacted with benzaldehyde to form the corresponding alcohol 15 with total retention of configuration, that undergoes hydrolysis resulting into the (E,E)-5-phenyl-2,3-pentadien-1-al 16. Hydrotelluration of the 1-butyltellurobut-1-en-3-cyclization, leading to substituted tellurophenes 24, 25, 27-29 via a sequential Csp(2)-Te and Csp(3)-Te bonds cleavage on reaction with n-BuLi followed by addition of electrophiles. (C) 1997 Elsevier Science Ltd.

  (1Z,3Z)-1-丁基-1,3-丁二烯碲化物8、9和12是通过1-丁-3-炔-1-烯的水合碲化反应获得的，随后通过与n-BuLi的反应转化为相应的1-丁-1,3-二烯基锂。通过将这些丁二烯基锂中间体与电亲核试剂反应，在保留双键几何构型的情况下，得到了1,3-丁二烯14、15和17-20。通过Te/Li交换反应，在(12,3Z)-4-甲氧基-1-丁基-1,3-丁二烯碲化物8的基础上获得了丁二烯基锂13，并与苯甲醛反应形成了保留全部构型的相应醇15，该醇经水解生成(E,E)-5-苯基-2,3-戊二烯-1-醛16。1-丁基-1-烯-3-炔的水合碲化后，通过与n-BuLi的反应依次断裂Csp(2)-Te和Csp(3)-Te键，随后加入电亲核试剂，形成取代的碲代芳香烃24、25、27-29。 (C) 1997 Elsevier Science Ltd.
• Synthesis of (E)-1,4-bis(organyl) but-1-en-3-ynes by lithlium-tellurium exchange reaction on (Z)-1-butyltelluro-1,4-bis(organyl) but-1-en-3-ynes.
  作者：Miguel J. Dabdoub、Vânia B. Dabdoub、João V. Comasseto

  DOI：10.1016/s0040-4039(00)74184-0

  日期：1992.4

  react with dibutyl ditelluride and sodium borohydride in ethanol under reflux to give (Z)-1-butyltelluro-1,4-bis(organyl) but-1-en-3-ynes, which by treatment with butyllithium followed by water give (E)-1,4-bis(organyl) but-1-en-3-ynes in high yields.

  1,4-双）有机基）-1,3-丁二炔与二丁基二碲化物和硼氢化钠在乙醇中在回流下反应生成（Z）-1-丁基碲-1,4-双（有机基）but-1-en-3 -ynes，先用丁基锂然后用水处理，以高收率得到（E）-1,4-双（有机基）but-1-en-3-ynes。
• Total synthesis of 1-(Z)-atractylodinol
  作者：Juliana M. Oliveira、Gilson Zeni、Ivani Malvestiti、Paulo H. Menezes

  DOI：10.1016/j.tetlet.2006.08.130

  日期：2006.11

  The total synthesis of 1-(Z)-atractylodinol, a natural polyacetylenic alcohol with several biological activities, has been achieved using a newly developed telluride synthon and a novel use for the Negishi type coupling reaction employing vinyl tellurides.

  使用新开发的碲化物合成子和使用碲化乙烯的Negishi型偶联反应的新用途，已实现了具有几种生物活性的天然聚炔醇1-（Z）-白术醇的全合成。
• Iodocyclization of (<i>Z</i>)-1-(Butyltelluro)-1,4-diorganylbut-1-en-3-ynes. Synthesis and Reactions of 3-Iodotellurophenes
  作者：Miguel J. Dabdoub、Vânia B. Dabdoub、Marco A. Pereira、Julio Zukerman-Schpector

  DOI：10.1021/jo961461z

  日期：1996.1.1

  The iodocyclization of(Z)-tellurobutenynes 5a-g by reaction with I-2/petroleum ether was studied in detail. 3-Iodotellurophenes 7a-f were formed, and optimum conditions to obtain these compounds in high yields were established. The reaction involves attack of iodide at the initially formed intermediate of type 10 followed by ring closure that is favored by the strong aromatic character of the resulting products. Two possible and alternative pathways for the ring closure are proposed to explain our observations: (a) transformation of 10 to 11 that undergoes further cyclization to give 7a-f (pathway a) or (b) direct cyclization of 10 to give tellurophene diiodide 9 (pathway b). The products and side products obtained are in agreement with the proposed mechanisms. Formation of 7a from ditelluride 14 and iodine provides additional evidence of the intermediacy of 11 (in pathway a). Structures of 7a and 5g were elucidated by X-ray crystallography. In the case of compound 5e, where a terminal triple bond was present, the resulting intermediate of type 10 also underwent the attack of iodide directly at the terminal carbon to give compound 12 together with 7e. Ring-opening of 3-iodotellurophene 7a occurs by reaction with n-butyllithium to form acyclic ditelluride 14 or monotelluride 16 depending on. the alkyllithium amounts employed. Plausible mechanisms for these novel reactions are proposed and supported. Conversion of 7a to 3-(butyltelluro)-2,5-diphenyltellurophen (22) was carried out readily by an unusual ''aromatic nucleophilic substitution'' using the butyl tellurolate anion.