4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE synthesis
- Product Name:4-FLUOROBENZENEDIAZONIUM TETRAFLUOROBORATE
- CAS Number:459-45-0
- Molecular formula:C6H4BF5N2
- Molecular Weight:209.91
371-40-4
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Yield: 96%
Reaction Conditions:
with sodium nitrite in tetrafluoroboric acid;water
Steps:
1 EXAMPLE 1
EXAMPLE 1 71.5 g of 4-fluoroaniline are dissolved in 246.6 g of 50% tetrafluoroboric acid, and the resulting mixture is stirred at 0° to 5° C. for 10 minutes. 47.9 g of sodium nitrite in 55 ml of water are then added at 0° to 5° C. over a period of 20 minutes. The precipitated product is washed with cold ether. Yield: 96% of 4-fluorophenyldiazonium tetrafluoroborate.
References:
Hoechst Aktiengesellschaft US5675034, 1997, A
