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Reaction of Boranes with TMS Diazomethane and Dimethylsulfoxonium Methylide. Synthesis of Poly(methylidene‐ co ‐TMSmethylidene) Random Copolymers
Author(s) -
Bai Jie,
Shea Kenneth J.
Publication year - 2006
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.200600252
Subject(s) - diazomethane , trimethylsilyl , copolymer , borane , chemistry , polymer chemistry , disproportionation , boranes , polymer , organic chemistry , catalysis , boron
Summary: Borane reacts with TDM by a sequence of insertion and disproportionation reactions to yield tris‐(trimethylsilylmethyl)borane. No further addition of TDM occurs. Triallylborane and tris‐(4‐methoxyphenylethyl)borane initiate the copolymerization of TDM and dimethylsulfoxonium methylide. The reactions afford TMS‐substituted polymethylene oligomers. The resultant poly(methylidene‐ co ‐TMSmethylidene) random copolymers arise from incorporation of TMSmethylidene (CHSiMe 3 ) and methylidene (CH 2 ) groups into the growing polymer chain one carbon at a time .Trialkylborane‐catalyzed copolymerization of trimethylsilyl diazomethane and dimethylsulfoxonium methylide.