Organophotocatalytic silyl transfer of silylboranes enabled by methanol association: a versatile strategy for C–Si bond construction

Abstract

Development of mild, robust and metal-free catalytic approach for the silyl transfer of silylboranes is critical to the advancement of modern organosilicon chemistry given their powerful capacity in the construction...

Photoredox Metal‐Free Synthesis of Unnatural β‐Silyl‐α‐Amino Acids via Hydrosilylation

“…Recently, a copper‐catalyzed silylamination of α , β ‐unsaturated esters with PhMe 2 SiBpin and hydroxylamines has also been discovered by Hirano and coworkers (Scheme 1–1a, bottom) [12b] . More recently, Zhang and collaborators also reported photo‐induced hydrosilylation of bis‐ N ‐boc‐protected dehydroalanine benzyl ester with several silylboranes (Scheme 1, 1b) [12c] . In addition, using hexamethyldisilane (TMS‐TMS) as silicon reagent, Shi [13a] and Zhang [13b] independently demonstrated Pd‐catalyzed C(sp 3 )−H silylation of 8‐aminoquinoline‐protected aliphatic amides (Scheme 1, 2).…”

Biomass-derived 2D carbon materials: structure, fabrication, and application in electrochemical sensors

“…50 Since most lignin resources are regarded as pollutants, 51 BC materials prepared using lignin are considered to be high value-added products. 52 Animals contain chitosan, animal protein and other substances, and their components are far more complex than plant biomass. The nitrogen atoms rich in these proteins can be uniformly added to the carbon rings, resulting the BC materials have enhanced electrochemical properties compared with pure carbon materials.…”

Metal-free photocatalyzed allylic silylation of allyl acetates and chlorides

“…Silyl radicals are important intermediates for the synthesis and transformation of organosilicon compounds. 13 Visible light-induced fragmentation of silicon chemical bonds such as Si–H, 14 Si–B, 15 Si–Si, 16 and Si–Se 17 have been established to generate silyl radicals. In 2020, Uchiyama and Wang et al developed an efficient protocol for the generation of silyl radicals by photoinduced decarboxylation of silacarboxylic acids.…”