POLYMERIZATION METHOD AND POLYMERS FORMED THEREWITH
申请人:THE SCRIPPS RESEARCH INSTITUTE
公开号:US20150315340A1
公开(公告)日:2015-11-05
Condensation of fluoro-substituted and silyl-substituted monomers provides polymers suitable for use, e.g., as engineering polymers. A monomer composition is condensed in the presence of a basic catalyst. The monomer composition contains a compound of formula F—X—F and a compound of formula (R
1
)3Si—Z—Si(R
1
)3, and forms an alternating X—Z polymer chain and a silyl fluoride byproduct. X has the formula -A(-R
2
-A)n-; each A is SO
2
, C(═O), or Het; R
2
is an organic moiety; n is 0 or 1; Het is an aromatic nitrogen heterocycle; Z has the formula -L-R
3
-L-; each L is O, S, or N(R
4
); and each R
3
is an organic moiety, and R
4
comprises H or an organic moiety.
Regioselectivity of electrophilic additions to 7-oxabicyclo[2.2.1]heptenes controlled by remote substituents. Arenesulfonyl substituted 7-oxabicyclo[2.2.1]heptenes as stereo- and regioselective chiral dienophiles
作者:Kersey A. Black、Pierre Vogel
DOI:10.1021/jo00376a054
日期:1986.12
Studies in Organosilicon Chemistry. XXXVII. The Preparation of Dimethylsiloxy and Trimethylsiloxy Derivatives of Naphthalene
作者:RAYMOND C. FINCH、HOWARD W. POST
DOI:10.1021/jo01089a021
日期:1959.7
BLACK K. A.; VOGEL P., J. ORG. CHEM., 51,(1986) N 26, 5341-5348
作者:BLACK K. A.、 VOGEL P.
DOI:——
日期:——
SuFEx-Based Synthesis of Polysulfates
作者:Jiajia Dong、K. Barry Sharpless、Luke Kwisnek、James S. Oakdale、Valery V. Fokin
DOI:10.1002/anie.201403758
日期:2014.9.1
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