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A15806 Nitrosonium tetrafluoroborate, 98%

CAS Number
14635-75-7
Synonyms
Nitrosyl tetrafluoroborate

Stock No. Size Price ($) Quantity Availability
A15806-04 2g 34.50
A15806-09 10g 78.00
A15806-18 50g 309.00
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Nitrosonium tetrafluoroborate, 98%

MDL
MFCD00011433
EINECS
238-679-2

Chemical Properties

Formula
NOBF4
Formula Weight
116.82
Melting point
250° subl.
Boiling Point
250°/0.01mm subl.
Density
2.185
Storage & Sensitivity
Keep Cold. Moisture Sensitive.
Solubility
Soluble in acetonitrile.

Applications

Nitrosonium tetrafluoroborate is a nitrosating agent and oxidizer used in organic synthesis. It is also used to convert arylamines directly to diazonium tetrafluoroborates, which undergo the Balz-Schiemann reaction in situ to give high yields of aryl fluorides. Further, it is used as a catalyst for iodination of aromatics by iodide ion with air as oxidant, conversion of secondary amines to nitrosamines and in deamination of primary amides. It is involved in the conversion of arylhydrazines to azides. In addition to this, it reacts with ferrocene to prepare ferrocenium tetrafluoroborate.

Notes

Hygroscopic. Air and moisture sensitive. Store in a cool place. Keep the container tightly closed in a dry and well-ventilated place. Incompatible with acids and amines.

Literature References

Crystalline nitrosating agent: Secondary amines to nitrosamines: Chem. Ber., 89, 2374 (1956); deamination of primary amides: J. Org. Chem., 30, 2386 (1965); conversion of arylhydrazines to azides: Tetrahedron Lett., 28, 5091 (1987). In organic solvents, converts arylamines directly to diazonium tetrafluoroborates which undergo the Balz-Schiemann reaction (see Tetrafluoroboric acid, L14037 ) in situ to give high yields of aryl fluorides: Chem. Ber., 88, 1939 (1955); EP 430,434 (1991). Methyl or methoxy substituted aromatics in acetonitrile give the nitrosoaromatics in good yield: J. Org. Chem., 59, 5573 (1994).

Convenient catalyst for iodination of aromatics by iodide ion with air as oxidant: J. Org. Chem., 53, 3548 (1988), or for addition of iodine (or iodine + nucleophile) to alkenes: Acta Chem. Scand. B, 43, 902 (1989).

Undergoes an interesting insertion reaction with diarylcyclopropanes: Chem. Lett., 233 (1988):

With excess reagent, oxidation of the isoxazoline to the isoxazole occurs.

Yang, Y.; Yao, Y.; He, L.; Zhong, Y.; Ma, Y.; Yao, J. Nonaqueous synthesis of TiO2-carbon hybrid nanomaterials with enhanced stable photocatalytic hydrogen production activity. J. Mater. Chem. A 2015, 3 (18), 10060-10068.

Bandi, V.; Gobeze, H. B.; Lakshmi, V.; Ravikanth, M.; D’Souza, F. Vectorial Charge Separation and Selective Triplet-State Formation during Charge Recombination in a Pyrrolyl-Bridged BODIPY-Fullerene Dyad. J. Phys. Chem. C 2015, 119 (15), 8095-8102.

GHS Hazard and Precautionary Statements

Hazard Statements: H314-H318

Causes severe skin burns and eye damage. Causes serious eye damage.

Precautionary Statements: P260-P264b-P280-P301+P330+P331-P303+P361+P353-P304+P340-P305+P351+P338-P310-P363-P501c

Do not breathe dust/fume/gas/mist/vapours/spray. Wash face, hands and any exposed skin thoroughly after handling Wear protective gloves/protective clothing/eye protection/face protection. IF SWALLOWED: Rinse mouth. Do NOT induce vomiting. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. IF INHALED: Remove to fresh air and keep at rest in a position comfortable for breathing. IF IN EYES: Rinse cautiously with water for several minutes. Remove contact lenses, if present and easy to do. Continue rinsing. Immediately call a POISON CENTER or doctor/physician. Wash contaminated clothing before reuse. Dispose of contents/ container to an approved waste disposal plant

Other References

Merck
14,6649
Hazard Class
8
Packing Group
II
Harmonized Tariff Code
2812.90
TSCA
Yes

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