TBAI-Catalyzed S–H and N–H Insertion Reactions of α-Diazoesters with Thiophenols and Amines under Metal-Free Conditions

Abstract

Mild, convenient, and effective TBAI-catalyzed S–H and N–H insertion reactions of α-diazoesters with thiophenols and aromatic amines under metal-free conditions have been described, furnishing a straightforward and general platform for the synthesis of various thioethers and 2-amino-2-oxoacetates in moderate to excellent yields. Moreover, this strategy features simple operation, mild conditions, broad substrate scope, and easy scale-up.

Sulfoxonium Ylides as Carbene Precursors in Rhodium‐Catalyzed Sommelet‐Hauser Rearrangement for the Synthesis of S/Se‐Containing Compounds

“…Additional references cited within the Supporting Information (Ref. [18][19][20][21][22][23][24][25][26]).…”

Multi-objective collaborative design optimized highly efficient energy capacitive lead-free relaxor ferroelectrics

“…Relaxor ferroelectrics (RFEs), by virtue of their distinctive features of large maximum polarization (P max ), slim hysteresis with small remnant polarization (P r ), moderate breakdown strength (E b ), and large dielectric constant within a broad temperature range, have shown great promise for designing dielectric materials with superior ESP. A series of strategies based on element doping and forming solid solutions, such as domain/nanodomain regulation, [19][20][21] superparaelectric state, 4,22 defect engineering, 23,24 high-entropy design, 18,25,26 phase structure modication 8,27,28 and interfacial polarization restriction, 29 have been developed, and great breakthroughs in ESP have been achieved in RFEs. Unfortunately, various methods could restrict each other due to the intrinsic contradiction among the high E b a College of Materials and Environmental Engineering, Hangzhou Dianzi University, No.…”

Excellent Energy‐Storage Performance in Lead‐Free Capacitors with Highly Dynamic Polarization Heterogeneous Nanoregions

“…The dense microstructure with a small grain size is an important guarantee for achieving high energy-storage performance, resulting in a high E b . [8][9][10][11][12] Nanodomain/domain engineering is often utilized to drive the transition of ferroelectric macrodomains to small-size nanodomains and even polar nanoregions (PNRs) by enhancing relaxation behavior to form ergodic relaxors or superparaelectrics, [13][14][15][16][17][18] accompanied by the transition of ferroelectric or antiferroelectric phase to nonpolar pseudo-cubic phase. This process can effectively decrease P r and reduce polarization hysteresis or heat loss.…”

“…[3,8] To further reduce the size of PNRs or improve their activity, the local diverse polarization configuration with the coexisting R-orthorhombic (O)-T multiphase PNRs in cubic (C) phase matrix can be constructed by high-entropy strategy, leading to ultrasmall PNRs of ≈1-3 nm and the reduced anisotropy and rotational energy barriers between different polarizations, which have made good progress in lead-free energy-storage ceramics. [2,16,26,27] However, due to the great challenge of local structure regulation, the energy-storage performance of most ceramics regulated by local polarization structure is not satisfactory (W rec <6 J cm −3 ), and highly dynamic polar regions are rarely observed or proven directly.…”