- SuFEx-based synthesis of polysulfates
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High-molecular-weight polysulfates are readily formed from aromatic bis(silyl ethers) and bis(fluorosulfates) in the presence of a base catalyst. The reaction is fast and proceeds well under neat conditions or in solvents, such as dimethyl formamide or N-methylpyrrolidone, to provide the desired polymers in nearly quantitative yield. These polymers are more resistant to chemical degradation than their polycarbonate analogues and exhibit excellent mechanical, optical, and oxygen-barrier properties. High-molecular-weight polysulfates are readily formed from aromatic bis(silyl ethers) and bis(fluorosulfates) in the presence of a base catalyst. The polymers were obtained in nearly quantitative yield under neat conditions, they are more resistant to chemical degradation than their polycarbonate analogues and exhibit excellent mechanical, optical, and oxygen-barrier properties. BPA=bisphenol A.
- Dong, Jiajia,Sharpless, K. Barry,Kwisnek, Luke,Oakdale, James S.,Fokin, Valery V.
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supporting information
p. 9466 - 9470
(2014/11/07)
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- Biaryl construction through kumada coupling with diaryl sulfates as one-by-one electrophiles under mild conditions
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(Figure presented) Diaryl sulfates were successfully applied as one-by-one organo electrophiles in Kumada coupling to construct biaryls with the emission of harmless Inorganic salts.
- Guan, Bing-Tao,Lu, Xing-Yu,Zheng, Yang,Yu, Da-Gang,Wu, Tong,Li, Kun-N,Li, Bi-Jie,Shi, Zhang-Jie
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supporting information; experimental part
p. 396 - 399
(2010/03/04)
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