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33725-74-5 - Tetra-n-butylammonium borohydride, 98% - Tetra-n-butylammonium tetrahydridoborate - A17494 - Alfa Aesar

A17494 Tetra-n-butylammonium borohydride, 98%

CAS-Nummer
33725-74-5
Synonyme
Tetra-n-butylammonium tetrahydridoborate

Größe Preis ($) Menge Verfügbarkeit
10g 57,91
50g 203,83
250g 753,00
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Tetra-n-butylammonium borohydride, 98%

MDL
MFCD00012035
EINECS
251-658-2

Chemische Eigenschaften

Formel
C16H40BN
Molmasse
257.31
Schmelzpunkt
125-131°
Flammpunkt
140°(284°F)
Sensitivität
Moisture Sensitive

Literaturverweise

Organic-soluble borohydride. For references to reduction by borohydride, see Sodium borohydride, 35788. Changing the counter ion permits variation in reactivity and selectivity.

/n

Amides and nitriles are selectively reduced in dichloromethane: Heterocycles, 14, 1437, 1441 (1980); aryl ester, nitro or halo-substituents are unaffected. For the 1,4-reduction of enones, see: Tetrahedron, 37, 1171 (1981). Carboxylic acids can be reduced to alcohols by refluxing in DCM: Synth. Commun., 30, 941 (2000).

/n

With reactive halides (e.g. MeI) in DCM, provides a convenient source of diborane: Tetrahedron Lett., 3173 (1972). Hydroboration of alkenes has also been effected by refluxing with the reagent in chloroform: Indian J. Chem., 37B, 1186 (1998).

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Effective regent for cleavage of TMS ethers: Synth. Commun., 26, 1065 (1996).

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See also Benzyl­triethyl­ammonium borohydride, B24952.

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GHS Gefahren- und Sicherheitshinweise

Gefahrenhinweise (EU): H261-H314-H318

In contact with water releases flammable gas. Causes severe skin burns and eye damage. Causes serious eye damage.

Sicherheitshinweise: P280-P303+P361+P353-P305+P351+P338-P310-P370+P378i-P402+P404

Wear protective gloves/protective clothing/eye protection/face protection. IF ON SKIN (or hair): Remove/Take off immediately all contaminated clothing. Rinse skin with water/shower. 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. In case of fire: Use for extinction: Fire-extinguishing powder. Store in a dry place. Store in a closed container.

Weitere Referenzen

Gefahrenklasse
4.3
Verpackungsgruppe
II
Harmonized Tariff Code
2923.90
TSCA
Yes

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