Visible light-catalytic hydroxylation of aryl halides with water to phenols by carbon nitride and nickel complex cooperative catalysis

Abstract

The efficient conversion of aryl halides to phenols under mild reaction conditions remains a grand challenge. Here we demonstrate that a facile and efficient hydroxylation reaction of aryl halides with...

Recent advances in visible-light graphitic carbon nitride (g-C3N4) photocatalysts for chemical transformations

“…F. Zhang and co-workers 169 reported the synthesis of phenols 39 via the facile and efficient hydroxylation reaction of aryl halides 38 with water through the merger of a heterogeneous organic semiconductor graphitic carbon nitride (g-C 3 N 4 ) photocatalyst and a homogeneous nickel( ii ) bipyridine organometallic catalyst under visible-light irradiation at room temperature ( Scheme 19 ).…”

Accelerated Direct Hydroxylation of Aryl Chlorides with Water to Phenols via the Proximity Effect in a Heterogeneous Metallaphotocatalyst

“…However, aryl chlorides are more abundant, stable, and lower in cost than aryl bromides or iodides, which can serve as excellent candidates. However, these chemicals are largely underexplored due to the need to overcome the high energetic barrier for the activation of the C–Cl bond . Recently, the activation of aryl chlorides by visible light has shown great potential. , Accordingly, the Xue group explored the use of NiBr 2 ·3H 2 O and the 6,6′-diamino-2,2′-bipyridyl ligand with an organic photocatalyst BODIPY can promote various aryl chlorides with water to functional phenols with high yields.…”

Hydroxyl-group-modified polymeric carbon nitride with the highly selective hydrogenation of nitrobenzene to N-phenylhydroxylamine under visible light

“…As a metal-free, environmentally friendly visible light absorbable photocatalyst, polymeric carbon nitride (PCN) has raised wide concern in photodegradation of pollutants, [17][18][19] reduction of CO 2 , 20,21 H 2 production [22][23][24] and, in particular, organic photosynthesis. [25][26][27][28][29][30][31][32][33] Many works had been reported that the surface modified methods can regulate the catalytic performance of the polymeric carbon nitride, and even control the selectivity of the reaction. For instance, our group has previously reported that the cyano modified PCN can selective control the conversion of benzylamine to imine.…”