tri(p-isopropoxyphenyl)bismuth | 95149-18-1

• 分子结构分类: 有机化合物 - 苯类化合物 - 苯酚醚
• 英文名称: tri(p-isopropoxyphenyl)bismuth
• CAS: 95149-18-1
• 化学式: C₂₇H₃₃BiO₃
• 分子量: 614.538
• InChiKey: JNFPNDKZMQEHDM-UHFFFAOYSA-N

计算性质

• 辛醇/水分配系数(LogP)：
  6.29
• 重原子数：
  31
• 可旋转键数：
  6
• 环数：
  3.0
• sp3杂化的碳原子比例：
  0.33
• 拓扑面积：
  27.7
• 氢给体数：
  0
• 氢受体数：
  3

反应信息

• 作为反应物：
  描述：

  2,5-二氯吡啶 、 tri(p-isopropoxyphenyl)bismuth 在 四(三苯基膦)钯 、 caesium carbonate 作用下， 以 N,N-二甲基乙酰胺 为溶剂， 反应 4.0h， 以90%的产率得到5-chloro-2-(4-isopropoxyphenyl)pyridine
  参考文献：
  名称：

  Cross-coupling study of iodo/chloropyridines and 2-chloroquinoline with atom-economic triarylbismuth reagents under Pd-catalysis

  摘要：

  This study describes the palladium-catalyzed couplings of iodopyridines, chloropyridines, and chloroquinoline with atom-economic BiAr3 reagents in sub-stoichiometric loadings. Mono-arylations of iodo and chloropyridines produced arylpyridines in high yields. The couplings addressed with dihalopyridines have afforded chemo- and regio-selective coupling products. Arylations of 2-chloroquinoline with different triarylbismuth reagents demonstrated fruitful coupling reactivity under the established conditions. This sumptuous study demonstrates the remarkable cross-coupling reactivity of iodo/chloropyridines and chloroquinoline with triarylbismuth reagents. (C) 2014 Elsevier Ltd. All rights reserved.

  DOI：

  10.1016/j.tet.2014.11.036

文献信息

• Pd-Catalyzed Threefold Arylation of Baylis-Hillman Bromides and Acetates with Triarylbismuth Reagents
  作者：Maddali L. N. Rao、Somnath Giri

  DOI：10.1002/ejoc.201200543

  日期：2012.8

  alkyl 2-benzylacrylates and 2-benzylacrylonitriles were synthesized by means of atom-economic cross-couplings of Baylis–Hillman bromides or acetates with BiAr3 under palladium-catalyzed conditions. These reactions, involving threefold aryl couplings using BiAr3 reagents with bromides and acetates, are fast and are completed in 1–2 h with high product yields.

  在钯催化条件下，通过 Baylis-Hillman 溴化物或乙酸盐与 BiAr3 的原子经济交叉偶联合成了功能化的 2-苄基丙烯酸烷基酯和 2-苄基丙烯腈。这些反应涉及使用 BiAr3 试剂与溴化物和乙酸盐进行三重芳基偶联，反应速度快，在 1-2 小时内完成，产品收率高。
• Triarylbismuthanes as Threefold Aryl-Transfer Reagents in Regioselective Cross-Coupling Reactions with Bromopyridines and Quinolines
  作者：Maddali L. N. Rao、Ritesh J. Dhanorkar

  DOI：10.1002/ejoc.201402455

  日期：2014.8

  Cross-coupling studies using bromopyridines and bromoquinolines with triarylbismuths as threefold coupling reagents in substoichiometric amounts under Pd-catalysed conditions are disclosed. The reactivity was high with both mono- and dibromopyridyl substrates, and mono- and bis-couplings were carried out regioselectively. A library of monoaryl and diaryl pyridines was formed in high yields. A one-pot

  公开了在 Pd 催化条件下使用溴吡啶和溴喹啉与三芳基铋作为亚化学计量量的三重偶联试剂的交叉偶联研究。与单-和二溴吡啶基底物的反应性很高，并且单-和双-偶联是区域选择性地进行的。以高产率形成了单芳基和二芳基吡啶库。一锅法提供了对称和不对称二芳基吡啶的简单直接合成。使用三芳基铋试剂实现了 2-溴和 3-溴喹啉的芳基化。该研究表明，三芳基铋可用作三重芳基化试剂，用于在 Pd 催化条件下通过与溴吡啶和溴喹啉偶联合成芳基吡啶和喹啉。
• Rapid Bis-Coupling Reactivity with Triarylbismuth Reagents: Synthesis of Structurally Diverse Scaffolds and Step-economic Convergent Synthesis of Quebecol
  作者：Maddali L. N. Rao、Venneti N. Murty、Sachchida Nand

  DOI：10.1002/ejoc.201901830

  日期：2020.3.22

  The cross‐coupling study of gem‐dibromoesters with triarylbismuths furnished a variety of multi‐functional trisubstituted acrylates embedded with aryl, alkene and alkyne scaffolds in high yields under palladium catalysis. Further, the established method was applied in the step‐economic and convergent synthesis of quebecol natural product in good yield.

  宝石二溴酸酯与三芳基铋的交叉偶联研究提供了在钯催化下高产率嵌入芳基，烯烃和炔烃骨架的多种多功能三取代丙烯酸酯。此外，已建立的方法被用于步伐经济和收敛合成高品质的魁北克天然产物。
• Atom-economic threefold cross-couplings of triarylbismuth reagents with 2-halobenzaldehydes and pot-economic in situ Wittig functionalizations with phosphonium salts
  作者：Maddali L. N. Rao、Ritesh J. Dhanorkar

  DOI：10.1039/c4ra13348j

  日期：——

  In this paper we report an efficient pot-economic methodology for the synthesis of ortho-olefinated biaryls. This has been achieved through an atom-economic threefold cross-coupling of triarylbismuth reagents with 2-halobenzaldehydes followed by pot-economic in situ Wittig olefination. The overall process is a pot-economic straightforward synthesis of ortho-olefinated biaryls from 2-halobenzaldehydes, triarylbismuth reagents and phosphonium salts. This pot-economic approach was applied to the formal synthesis of medicinally important Eupomatilone-6.

  本文报道了一种高效的原位Wittig烯化反应方法，用于合成邻烯基联苯。通过三芳基铋试剂与2-卤代苯甲醛的三重交叉偶联，继而进行原位Wittig烯化，实现了这一目标。整个过程是从2-卤代苯甲醛、三芳基铋试剂和膦盐出发，高效简便地合成邻烯基联苯。这一方法已成功应用于重要的药用成分Eupomatilone-6的正式合成中。
• Cross-coupling reactivity of 1,1-dichloroalkenes under palladium catalysis: domino synthesis of diarylalkynes
  作者：L. N. Rao Maddali、Suresh Meka

  DOI：10.1039/c7nj05107g

  日期：——

  An efficient synthesis of diarylalkynes was achieved from the domino cross-coupling reaction of 1,1-dichloroalkenes with triarylbismuth reagents under palladium-catalyzed conditions. Under the established palladium protocol, 1,1-dichloroalkenes demonstrated hitherto unknown remarkable cross-coupling reactivity with organometallic triarylbismuth reagents to furnish functionalized diarylalkynes.

  在钯催化的条件下，由1,1-二氯烯烃与三芳基铋试剂进行多米诺交叉偶联反应可实现二芳基炔烃的有效合成。在已建立的钯协议下，1,1-二氯烯烃显示出迄今未知的与有机金属三芳基铋试剂的显着交叉偶联反应性，以提供官能化的二芳基炔烃。