base-mediated hydroamination protocol, using substoichiometric amounts of a hydrosilane and potassium tert-butoxide, that operates under mild conditions at 30 °C. Many aryl- and heteroatom-substituted olefins as well as arylamines are tolerated, affording the desired products with complete regioselectivity. Preliminary mechanistic investigations reveal a non-radical pathway for hydroamination. A sequential
我们提出了一种碱介导的加氢胺化方案,使用亚化学计量的氢硅烷和叔丁醇钾,在 30°C 的温和条件下运行。可以耐受许多芳基和杂原子取代的烯烃以及芳基胺,从而提供具有完全区域选择性的所需产物。初步的机理研究揭示了加氢胺化的非自由基途径。还开发了一种顺序远程加氢胺化策略,包括初始 Fe 催化的烯烃异构化,然后是我们的碱介导的加氢胺化,以直接从末端脂肪族烯烃中获取 β-芳基胺。
Transition-metal-free regioselective hydroamination of styrenes with amino-heteroarenes
作者:Priyanka Meena、Ayushee、Monika Patel、Akhilesh K. Verma
DOI:10.1039/d2cc02781j
日期:——
The base-mediated anti-Markovnikov hydroamination of functionally varied styrenes with amino-substituted pyridine, quinoline, pyrimidine, pyrazine, and phenanthridine with excellent regioselectivity has been described. Double hydroamination was observed chemoselectively on the secondary amine, leaving the primary amine intact. Experimental evidence suggests that the proposed reaction involves the nucleophilic
[EN] CATALYST COMPOUNDS AND USE THEREOF<br/>[FR] COMPOSÉS CATALYTIQUES ET APPLICATION ASSOCIÉE
申请人:EXXONMOBIL CHEM PATENTS INC
公开号:WO2011056432A2
公开(公告)日:2011-05-12
This invention relates to Group 4 dialkyl compounds supported by a pyridyl-amido-aryl ("PAA"), an anisole-amido-aryl ("AAA"), a phenoxy-amido-pyridyl ("PAPY"), an anisole- amido-phenoxy ("AAP") or a anisole-amido-phenoxy ("AAP") tridentate ligand. Such compounds can polymerize olefins, such as ethylene.