Potassium phenyl borate

Salts synthesized by reacting potassium hydroxide with carboxylic acids are suitable for nucleation of polypropylene compositions. Potassium phenyl borate is a nucleating agent used for this nucleation process. ... 

The reaction of potassium dienoxy borates with A-fluorobis(phenylsulfonyl)amine (la) gives y-fluoro enones in good yield. The potassium dienoxy borates are prepared by treating potassium enolates derived from unsaturated ketones with 2-phenyl-1,3,2-benzodioxaborole. This methodology offers a convenient alternative to the traditional fluorination of dienol acetates, ethers, or enamines.145 An example is given by the formation of 13.145... 

Although the ratio of biaryls formed in these halogenative oxidations is somewhat sensitive to the reaction medium, it is noteworthy that the amount of biaryl formation is quite dependent both on the nature of the solvent and the metal ion (L, Na" ", or K+). Although potassium phenyl(tri-/7-tolyl)borate (58) dissolved in chloroform reacted with iodine to yield a 1.4 1.0 ratio of biaryl to p-iodotoluene, the same reaction in dimethylformamide gave almost exclusively p-iodotoluene. Likewise, the sodium analog of 58 gave a biaryl p-iodotoluene ratio of 1 32 (48). 

Recently, interesting recognition abilities toward both sodium and potassium cations were reported for cone-shaped l,4 2,3-doubly-bridged calrx[7]arene 8i [6b] by using the corresponding Tetrakis[3,5-bis(triFluoromethyl)Phenyl]Borate (TFPB ) salts. In particular, a selectivity of 94 for sodium over potassium was found [6b]. Derivative 8i also showed interesting recognition abilities toward linear and branched alkyl ammonium cations with which forms cnt/o-cavity complexes (Fig. 7.19). 

Tsubouchi, M., N. Yamasaki, K. Yanagisawa, Two-phase titration of poly(oxyethylene) nonionic surfactants with tetrakis(4-fluorophenyl)borate. Anal. Chem., 1985,57,783-784. O Connell, A. W., Titration of nonionic surfactants with potassium tetrakis(4-chloro-phenyl)borate, Aruil. Chem., 1986,58, 669-670. 

Olealkonium chloride Phenoxyisopropanol Phenyl benzoate Phenylmercuric acetate Phenylmercuric benzoate Phenylmercuric borate Phenylmercuric bromide Phenylmercuric chloride Phenylparaben o-Phenylphenol Piroctone olamine Polyaminopropyl biguanide Potassium benzoate Potassium butyl paraben Potassium caroate Potassium ethylparaben Potassium metabisulfite . Potassium methylparaben Potassium paraben Potassium o-phenylphenate... 

Oleic Acid 112-80-1 Phenyl Ether 101-84-8 Potassium Borate 126755-38-2... 

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