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Creators/Authors contains: "Deng, Shijie"

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  1. Free, publicly-accessible full text available January 1, 2026
  2. A phosgene-free method to prepareN-carboxyanhydrides from amino acids and carbon dioxide has been developed. This method is mild enough to be used in the tandem synthesis of alkaloids tryptanthrin and phaitanthrin A. 
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  3. null (Ed.)
    A dimeric yttrium phenoxide complex supported by a ferrocene Schiff base ligand, [(salfen)Y(OPh)] 2 (salfen = ( N,N ′-bis(2,4-di- tert -butylphenoxy)-1,1′-ferrocenediimine), was synthesized and characterized. According to electrochemical studies and 1 H NMR spectroscopy, [(salfen)Y(OPh)] 2 can be oxidized in a stepwise fashion to access three oxidation states. The catalytic activity of the three states toward the ring opening polymerization of cyclic esters and epoxides was investigated. The activity toward cyclic esters decreases upon oxidation while the opposite trend was observed in epoxide polymerization. Block copolymer syntheses using a redox switch were also performed. 
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