Ammonium, tetrabutyl 250 Subject

The pyrolysis derivatization approach may also be used. THM results in the formation of dimethyl terephthalate when PET fibers are subjected to the procedure. Tetrabutyl ammonium hydroxide may be used to replace TMAH in the reaction to confirm the presence of vinyl acetate in acrylonitrile-vinyl acetate copolymer acrylic fibers. The derivatized product is butyl acetate. ... 

The resultant alkenyl(2-pyridyl)silanes can be subjected to further transformations. For example, the treatment of alkenyl (2-pyridyl)silanes with aryl iodides in the presence of tetrabutyl-ammonium fluoride and palladium catalyst affords substituted oleflns in good yields (eq 3). This cross-coupling reaction is suggested to proceed through the intermediacy of a highly reactive alkenylsilanol. The treatment of alkenyl(2-pyridyl)silanes with tetrabutylammonium fluoride effects simple protodesilyl-ation (eq The reaction with acetyl chloride in the presence of aluminum chloride affords the corresponding Q ,/3-unsaturated enones (eq 5). ... 

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