Aryloxy--terminated polydimethylsiloxanes (AOS) were synthesized by the telomerization of hexamethylcyclotrisiloxane(D3) with phenols. The structures of AOS were characterized by UV, IR, 2HNMR and elemental analysis, ...Aryloxy--terminated polydimethylsiloxanes (AOS) were synthesized by the telomerization of hexamethylcyclotrisiloxane(D3) with phenols. The structures of AOS were characterized by UV, IR, 2HNMR and elemental analysis, The effects of the reaction conditions and the mole ratios of the reactants on foe molecular weight of the polymer were discussed. A OS's structural influence on bactericidal action, flocculation and hydrolysis was studied.展开更多
A new radical-mediated method for the synthesis of 1-(2-(1,2-diarylvinyl)phenyl)ethan-1-ones by the redox hydroarylation of o-(hydroxyalkyl)arylalkynes with arylsulfonyl chlorides is described. This visible light cata...A new radical-mediated method for the synthesis of 1-(2-(1,2-diarylvinyl)phenyl)ethan-1-ones by the redox hydroarylation of o-(hydroxyalkyl)arylalkynes with arylsulfonyl chlorides is described. This visible light catalysis method proceeds via a sequence of the radical addition of aryl group across the C?C triple bond, protonation and redox reaction, and represents a new redox transformation reaction directed by a neighboring hydroxyl group.展开更多
文摘Aryloxy--terminated polydimethylsiloxanes (AOS) were synthesized by the telomerization of hexamethylcyclotrisiloxane(D3) with phenols. The structures of AOS were characterized by UV, IR, 2HNMR and elemental analysis, The effects of the reaction conditions and the mole ratios of the reactants on foe molecular weight of the polymer were discussed. A OS's structural influence on bactericidal action, flocculation and hydrolysis was studied.
基金supported by the National Natural Science Foundation of China(2140204621172060+1 种基金21472039)the Fundamental Research Funds for the Central Universities
文摘A new radical-mediated method for the synthesis of 1-(2-(1,2-diarylvinyl)phenyl)ethan-1-ones by the redox hydroarylation of o-(hydroxyalkyl)arylalkynes with arylsulfonyl chlorides is described. This visible light catalysis method proceeds via a sequence of the radical addition of aryl group across the C?C triple bond, protonation and redox reaction, and represents a new redox transformation reaction directed by a neighboring hydroxyl group.
