Isocyanuric fluoride

Inorganic Chemical Manufacture Anliydrous aluminum clUoride Antimony pentaeldoride Antimony trichloride Arsenic cliloride Bismutli trichloride Chlorinated isocyanurates Clilorine tri fluoride Ferric chloride Hydrochloric acid... 

COFj reacts with ammonia to give urea, guanidine, isocyanuric acid, and hydrogen fluoride (c/. Section 9.10.2.1) [1756]. 

A comprehensive review of trimerization catalysts appeared in 1985 . The need to synthesize high purity triphenyl isocyanurate as an activator for the continuous anionic polymerization of caprolactam to nylon-6 prompted the development of new catalysts, which trimerize aryl isocyanates at a fast rate at room temperature, achieving virtually quantitative yields. Examples of these new supercatalysts are tetrabutylammonium fluoride (TBAF), cesium fluoride and [P(MeNCH2CH2)3N]. The latter catalysts gives a 97 % yield of triphenyl isocyanurate after 3.8 min at room temperature (catalyst concentration, 0.33 mol%). Likewise, TBAF affords 98.8 % of triphenyl isocyanurate after 5 min at room temperature. A similar fast trimerization can be achieved using potassium t-butoxide as the catalyst . 

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