- Method for preparation of tricyanidofluoroborates in 2 steps
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The invention discloses a method for the preparation of tricyanidofluoroborate in two steps via tetra alkylammonium and tetra alkylphosphonium tricyanidofluoroborate, starting from tetraalkylammonium or tetra alkylphosphonium tetrafluoroborate and trimethylsilylcyanide in the first step and exchanging the cation in the second step.
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Paragraph 0090-0091
(2014/09/17)
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- METHOD FOR THE PREPARATION OF TETRAALKYLAMMONIUM OR TETRAALKYLPHOSPHONIUM|TRICYANIDOFLUOROBORATES
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The invention discloses a method for the preparation of tetra alkylammonium and tetra alkylphosphonium tricyanidofluoroborate starting from tetraalkylammonium or tetra alkylphosphonium tetrafluoroborate and trimethylsilylcyanide.
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Page/Page column 13
(2014/03/25)
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- METHOD FOR THE PREPARATION OF TETRAALKYLAMMONIUM TETRACYANIDOBORATES
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The invention discloses a method for the preparation of tetra alkylammonium tetracyanidoborate starting from tetraalkylammonium tetrafluoroborate and trimethylsilylcyanide.
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Page/Page column 14
(2014/03/25)
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- Direct syntheses of tetramethylammonium salts of complex fluoroanions
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The tetramethylammonium salts of BF4-, PF6-, SiF5-, SiF2-6, GeF5- and GeF2-6 were prepared in high yields by direct synthesis from N(CH3)3, CH3F and the corresponding Lewis acid at elevated temperature and pressure. Attempts to prepare anhydrous N(CH3)4F directly from N(CH3)3 and CH3F at elevated temperature and pressure or by pyrolysis of some of the above tetramethylammonium complex fluoroanion salts were unsuccessful.
- Gnann,Wagner,Christe
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p. 191 - 194
(2007/10/03)
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- Thermolyses of 1,1-dimethyl-2-pyrazolinium fluoborates - Evidence for spiro--1-aza-1,4,6-octatrienyl cation
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Thermolyses of 3-aryl-1,1-dimethyl-2-pyrazolinium fluoborates give an isomeric mixture of 3-aryl-1-methylpyrazole and 5-aryl-1-methylpyrazole as major products in complete contrast to the corresponding acyclic analogs. 2,6-Diaryl-3-methylpyridines were isolated only in trace quantities.The probable reasons for this unique behaviour was explored using semi-empirical calculations, non-kinetic methods and radiolabelling experiments.A pathway was proposed.
- Subramaniam, Girija,Fishel, Derry L
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p. 172 - 176
(2007/10/02)
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