Tetra-n-butylammonium borohydride

• Catalog No.: A17494
• CAS Number: 33725-74-5
• M. F.: C16H39BN
• M. W.: 256.29856
• Purity: 98%

SYNONYMS

• Title: 四正丁基硼氢化铵
• IUPAC name: tetrabutylazanium boranuide
• IUPAC Traditional name: tetrabutylammonium boranuide
• Synonyms: Tetra-n-butylammonium tetrahydridoborate

DATABASE IDS

• CAS Number: 33725-74-5
• EC Number: 251-658-2
• MDL Number: MFCD00012035

PROPERTIES

• Purity: 98%
• Flash Point: 140°C(284°F)
• Melting Point: 125-131°C
• GHS Hazard statements: H261-H314-H318
• European Hazard Symbols: Corrosive (C)
• European Hazard Symbols: Flammable (F)
• GHS Precautionary statements: P280-P303+P361+P353-P305+P351+P338-P310-P370+P378I-P402+P404
• Risk Statements: 15-34
• Safety Statements: 7/8-26-36/37/39-43-45
• Storage Warning: Moisture Sensitive
• TSCA Listed: 是
• Hazard Class: 4.3
• UN Number: UN3131
• Packing Group: II

REFERENCES

• Organic-soluble borohydride. For references to reduction by borohydride, see Sodium borohydride, 35788. Changing the counter ion permits variation in reactivity and selectivity.
• 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).
• 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).
• Effective regent for cleavage of TMS ethers: Synth. Commun., 26, 1065 (1996).
• See also Benzyltriethylammonium borohydride, B24952.