Iron-catalyzed synthesis of arylsulfinates through radical coupling reaction
作者:Weixi Zhang、Meiming Luo
DOI:10.1039/c5cc09830k
日期:——
A novel strategy for installation of sulfonyl fragment into arenes has been accomplished via an iron-catalyzed radical couplingreaction. Arene radicals derived from diaryliodoniums via single electron transfer reaction combine...
processes for their production are scarce and would greatly benefit from further investigations. Herein, we demonstrate that an iridium‐based photocatalyst promotes the direct reductive cross‐coupling of imines with olefins upon irradiation with visible light to give GABA derivatives in good yields and selectivities. We also stress the enabling triple role of tributylamine additive in this process
Metal free photooxidation of alkyl bis(catecholato)silicates with the organic dye, 1,2,3,5-tetrakis(carbazol-9-yl)-4,6-dicyano-benzene (4CzIPN), allows the smooth formation of alkyl radicals. The latter can be efficiently engaged either with radical acceptors to...
DENTAL MATERIALS WITH DEBONDING-ON-DEMAND PROPERTIES
申请人:Ivoclar Vivadent AG
公开号:US20170156993A1
公开(公告)日:2017-06-08
Radically polymerizable dental material, which contains at least one compound of Formula I:
and at least one thermolabile radically polymerizable compound and/or at least one photolabile radically polymerizable compound. The materials are characterized by debonding-on-demand properties.
The influence of vinyl activating groups on β-allyl sulfone-based chain transfer agents for tough methacrylate networks
作者:Paul Gauss、Samuel Clark Ligon-Auer、Markus Griesser、Christian Gorsche、Helena Svajdlenkova、Thomas Koch、Norbert Moszner、Robert Liska
DOI:10.1002/pola.27993
日期:2016.5.15
systems providing information about the influence on photoreactivity, molecular weight, as well as thermal and mechanical properties of the resultant polymers. Where more potent activatinggroups (‐Ph, ‐CN) markedly influenced polymerization at lower concentrations, the AFCT reagent with an ester activatinggroup reacted at a similar rate to the methacrylate monomer (CT ≈ 1) and provided the best overall