Electrochemical dual α,β-C(sp³)–H functionalization of cyclic N-aryl amines

Abstract

Herein, a straightforward and efficient route for the construction of dual α,β-C(sp3)–H functionalized cyclic N-aryl amines using a combination of electrocatalysis and iron catalysis is disclosed. This approach is achieved...

Boosting Li–O2 Battery Performance via Coupling of P–N Site‐Rich N, P Co‐Doped Graphene‐Like Carbon Nanosheets with Nano‐CePO4

“…Two weak main peaks labeled as µ 0 and ν 0 and two intense satellite peaks labeled as µ′ and ν′ positioned at 900.7, 882.5, 904.9, and 886.1 eV, respectively, are assigned to Ce 3+ , suggesting that the Ce species in CePO 4 @N‐P‐CNSs existed only as Ce 3+ . [ 57,58 ] The C 1s and N 1s XPS spectra of CePO 4 @N‐P‐CNSs are deconvoluted into five types of carbon species and five types of nitrogen species, respectively, which are the same as those of N‐P‐CNSs (Figures S8a and S8b). However, in contrast with N‐P‐CNSs, two new peaks at ≈129.8 eV and ≈133.6 eV emerge in the P 2p XPS spectrum of CePO 4 @N‐P‐CNSs assigned to P‐Ce and P‐O in PO 4 3− tetrahedral structure, respectively (Figure 2g and Figures S8c, Supporting Information).…”

“…However, in contrast with N‐P‐CNSs, two new peaks at ≈129.8 eV and ≈133.6 eV emerge in the P 2p XPS spectrum of CePO 4 @N‐P‐CNSs assigned to P‐Ce and P‐O in PO 4 3− tetrahedral structure, respectively (Figure 2g and Figures S8c, Supporting Information). [ 57,59 ] Meanwhile, two new peaks appeared in the O1s XPS spectrum of CePO 4 @N‐P‐CNSs at ≈529.3 eV and ≈531.6 eV, which are assigned to lattice oxygen and Ce—O–P, respectively (Figure 2h and Figures S8d, Supporting Information). [ 59–61 ] Overall, as expected, the XPS results clearly demonstrate that the NPs in CePO 4 @N‐P‐CNSs are CePO 4 , which is in harmony with the findings from the previous XRD results (Figure 2a).…”

Deep eutectic solvents as an emerging green platform for the synthesis of functional materials

“…The PDES increased the adsorption sites of OVA and enhanced multiple interactions between the sorbent and OVA. 211,212 Li et al 213 reported the modification of magnetic titanium dioxide nanoparticles using a deep eutectic solvent consisting of choline chloride (ChCl) and xylitol (Xyl) (Fe 3 O 4 @TiO 2 @[ChCl] [Xyl]) and its application to chymotrypsin (Chy) solid phase extraction (MSPE). There was also a group led by Ni et al 214 who used carbon nanotubes (CNTs) for magnetization and radical polymerization, followed by solid-phase extraction of bovine serum proteins (BSA) using 3-acrylamidopropyltrimethylammonium chloride solution (APTMAC) and xylitol (Xyl) to coat the surface (Fig.…”

Metal-free electrochemical dihydroxylation of unactivated alkenes

“…With our continuous interests in sustainable electrochemistry 85 – 88 , here we report our effort in the development of this metal-free electrochemical dihydroxylation of unactivated alkenes, as a general, direct, and more environmentally friendly approach for the synthesis of aliphatic vicinal diols (Fig. 1B ).…”