Isomerization Polymerization of the Phosphaalkene MesPCPh<sub>2</sub>: An Alternative Microstructure for Poly(methylenephosphine)s
作者:Paul W. Siu、Spencer C. Serin、Ivo Krummenacher、Thomas W. Hey、Derek P. Gates
DOI:10.1002/anie.201301881
日期:2013.7.1
Unique pathway: The radical‐initiated addition polymerization of MesP=CPh2 propagates through the ortho‐bound CH3 group of the Mes moiety after CH bond activation (see scheme, Mes=2,4,6‐trimethylphenyl, tht=tetrahydrothiophene, TEMPO=2,2,6,6‐tetramethyl‐l‐piperidinoxyl). This unique isomerization polymerization mechanism contrasts the previously suggested head‐to‐tail enchainment typically observed
独特途径:MESP = CPH的自由基引发加成聚合反应2个通过传播邻-结合的CH 3 ℃后在MES部分的组 H键活化(参见方案,MES = 2,4,6-三甲基苯基,THT =四氢噻吩,TEMPO = 2,2,6,6-四甲基-1-哌啶氧基)。这种独特的异构化聚合机理与以前建议的通常从头到尾的烯烃链形成对比。