Atom and step economical synthesis of acyclic quaternary centers via iridium-catalyzed hydroarylative cross-coupling of 1,1-disubstituted alkenes.

Atom and step economical synthesis of acyclic quaternary centers via iridium-catalyzed hydroarylative cross-coupling of 1,1-disubstituted alkenes.
复制标题

DOI:
10.1039/d2sc02790a
复制
发表时间:
2022-09-28
期刊:
影响因子:
8.4
通讯作者:
--
中科院分区:
化学1区
文献类型:
--
作者:

文献摘要

参考文献

相似文献

通过 Ir 催化的烯烃加氢芳基化,可以以高原子和步骤经济性获得季苄基中心。这些研究提供了在支链选择性 Murai 型加氢(杂)芳基化中使用非极化 1,1-二取代烯烃的独特实例。已经进行了详细的机理研究,这些研究表明第一个不可逆的步骤是要求苛刻的烯烃碳金属化过程。结构反应性研究表明,其效率很大程度上取决于配体的关键结构特征。已经进行了计算研究来合理化这些实验数据,表明空间要求更高的配体如何通过反应中间体的预变形来降低反应势垒。这里披露的关键见解将支持日益复杂的支链选择性 Murai 氢芳基化的持续发展。通过非极化 1,1-二取代烯烃的分子间 Ir 催化加氢芳基化,以高原子和步骤经济性获得季苄基中心。
Quaternary benzylic centers are accessed with high atom and step economy by Ir-catalyzed alkene hydroarylation. These studies provide unique examples of the use of non-polarized 1,1-disubstituted alkenes in branch selective Murai-type hydro(hetero)arylations. Detailed mechanistic studies have been undertaken, and these indicate that the first irreversible step is the demanding alkene carbometallation process. Structure-reactivity studies show that the efficiency of this is critically dependent on key structural features of the ligand. Computational studies have been undertaken to rationalize this experimental data, showing how more sterically demanding ligands reduce the reaction barrier via predistortion of the reacting intermediate. The key insight disclosed here will underpin the ongoing development of increasingly sophisticated branch selective Murai hydroarylations. Quaternary benzylic centers are accessed with high atom and step economy by intermolecular Ir-catalyzed hydroarylation of non-polarized 1,1-disubstituted alkenes.
DOI: 10.1002/anie.202105776
发表时间: 2021-08-23
期刊: Angewandte Chemie (International ed. in English)
影响因子: --
作者:
Arribas A;Calvelo M;Fernández DF;Rodrigues CAB;Mascareñas JL;López F
通讯作者: López F
DOI: 10.1002/anie.201913733
发表时间: 2020-01-23
影响因子: 16.6
作者:
Li, Guozhu;Liu, Qinzhe;Wang, Jun
通讯作者: Wang, Jun
DOI: 10.1039/c0cc05222a
发表时间: 2011-01-01
影响因子: 4.9
作者:
Das, Jaya Prakash;Marek, Ilan
通讯作者: Marek, Ilan
DOI: 10.1016/j.tet.2016.09.002
发表时间: 2016-10-27
期刊: TETRAHEDRON
影响因子: 2.1
作者:
Ling, Taotao;Rivas, Fatima
通讯作者: Rivas, Fatima
DOI: 10.1021/jacs.8b05868
发表时间: 2018-09-12
影响因子: 15
作者:
Green SA;Vásquez-Céspedes S;Shenvi RA
通讯作者: Shenvi RA