Syntheses of RuHCl(CO)(PAr3)3 and RuH2(CO)(PAr3)3 Containing Various Triarylphosphines and Their Use for Arylation of Sterically Congested Aromatic C–H Bonds
摘要:
A series of ruthenium complexes, RuHCl(CO)(PAr3)(3) and RuH2(CO)(PAr3)(3), containing various triarylphosphines were synthesized. Screening of these complexes as catalysts for direct arylation of sterically congested ortho C-H bonds of aromatic ketones improved the yields of the arylation products.
钌催化的1-环naphthylsilanes与通过C的裂解,得到silaphenalenes内炔 H键在萘的8位上。[RuH 2(CO){P(p- FC 6 H 4)3 } 3 ]有效地催化了反应。与使用在硅原子上带有烷基的硅烷相比,使用1-萘基二苯基硅烷作为基材可提高环化产物的收率。在该反应中容许同时具有芳基和烷基的内部炔烃。