Palladium-catalyzed oxygenation of C(sp²)–H and C(sp³)–H bonds under the assistance of oxalyl amide

Abstract

A general palladium catalyzed selective γ-oxygenation of oxalyl amide protected amines is accomplished under mild condition.

Redox-Induced Aromatic C–H Bond Functionalization in Metal Complex Catalysis from the Electrochemical Point of View

“…Thus, it is obvious that such weak oxidants as oxygen (−0.78 to −1.26 V), 1,4-benzoquinone (0.16 to −0.875V) are not able to oxidize many palladacycles even up to Pd(III) (~0.25 to 1.4 V) complexes, the more so to Pd(IV) (~1.0 to 1.6V) [25]. This explains the numerous failed attempts to use them in such Pd-catalysed C-H functionalizations, such as 1,4-benzoquinone [27][28][29]75,[82][83][84][85], and O 2 [77,82,[86][87][88] for example.…”

Dehydrogenative (Hetero)arene Alkoxylations Triggered by PdII‐Catalyzed C(sp2)–H Activation and Coordinating Substituent: PdII,III or PdIV Complex as Key Intermediate?

“…Monoalkoxylation with assistance from an oxalylamide unit has been performed with use of the Pd(OAc) 2 /PhI(OAc) 2 system at 60–130 °C in 6:1 mixtures of toluene and a primary or secondary alcohol [Equation ] . No reaction occurred on substituting PhI(OAc) 2 with K 2 S 2 O 8 , Cu(OAc) 2 , or BQ.…”

Developing Polybenzoxazine Composites Based on Various Carbon Structures

“…Surface treatment of CFs influence chemical and mechanical properties and improves the chemical interactions with the polymer matrix. [58][59][60][61][62][63][64][65] The influences of nitric acid treatment and oxygen plasma treatment on the mechanical properties of CF/PBZ composites were reported by Jang and his group, [66] showing that nitric acid treatment significantly improved the mechanical properties of final composites in comparison with the oxygen plasma treatment caused by a larger surface roughness of the CF.…”