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Ruthenium catalyzed polymerization of 4‐acetylstilbenes and 1,3‐divinyltetramethyldisiloxane
Author(s) -
Londergan Timothy Martin,
Weber William P.
Publication year - 1997
Publication title -
macromolecular rapid communications
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.348
H-Index - 154
eISSN - 1521-3927
pISSN - 1022-1336
DOI - 10.1002/marc.1997.030180220
Subject(s) - ruthenium , polymerization , triphenylphosphine , catalysis , polymer chemistry , double bond , markovnikov's rule , chemistry , yield (engineering) , materials science , organic chemistry , polymer , regioselectivity , metallurgy
Successful dihydridocarbonyltris(triphenylphosphine)ruthenium (Ru‐complex) catalyzed polymerization of 4‐acetylstilbene with 1,3‐divinyltetramethyldisiloxane to yield poly(3,3,5,5‐tetramethyl‐4‐oxa‐3,5‐disila‐1,7‐heptanylene‐ alt ‐4‐acetyl‐3,5‐stilbenylene) is reported. Polymerization results from Ru‐complex catalyzed activation of aromatic C‐H bonds which are ortho to the acetyl for selective anti‐Markovnikov addition across the terminal C‐C double bonds of 1,3‐divinyltetramethyldisiloxane. The internal C‐C double bond of 4‐acetylstilbene does not react.