An Active Palladium Colloidal Catalyst for the Selective Oxidative Heterocoupling of (Hetero)Aryl Boronic Acids
作者:Vaibhav Sable、Karan Maindan、Shatrughn Bhilare、Nicolas Chrysochos、Carola Schulzke、Anant R. Kapdi
DOI:10.1002/asia.201800358
日期:2018.9.4
A highly selective oxidative heterocoupling protocol for (hetero)arylboronicacids with an active palladium colloidal catalyst was developed. The judicious choice of electronically different arylboronicacids made possible such couplings under mild conditions, with air as oxidant, while embracing a wide substrate scope. This successful approach further allowed the development of a unique one‐pot
Polycyclic Aromatic Hydrocarbons via Iron(III)-Catalyzed Carbonyl–Olefin Metathesis
作者:Christopher C. McAtee、Paul S. Riehl、Corinna S. Schindler
DOI:10.1021/jacs.7b01114
日期:2017.3.1
Polycyclicaromatichydrocarbons are important structural motifs in organic chemistry, pharmaceutical chemistry, and materials science. The development of a new syntheticstrategytoward these compounds is described based on the design principle of iron(III)-catalyzed carbonyl-olefin metathesis reactions. This approach is characterized by its operational simplicity, high functional group compatibility
Palladium-catalyzed cross-dehydrogenativecoupling of phenanthrenes with simple arenes is innovated. This protocol provides an opportunity for a waste–minimized construction of π-extended PAHs with high atomic efficiency under mild and ligand-free conditions.
Application of Sulfoxonium Ylides or Iodonium Ylides in Rhodium‐Catalyzed Synthesis of Phenanthrenes
作者:Xiao Liu、Bingxin Zhou、Kelu Yan、Jiangwei Wen、Qiuyun Li、Xutong Wang、Xiu Wang
DOI:10.1002/adsc.202301451
日期:2024.4.23
The transmetalation triggered rhodium‐catalyzed C‒H bond activation and tandem annulation of 2‐biphenylboronic acids with sulfoxonium ylides or iodonium ylides has been developed. Various products of phenanthrenes were constructed under redox‐neutral conditions in 34−86% yields. Several mechanism exploration experiments and derivatization reactions were conducted in sequence to gain a deeper understanding