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72453

Sigma-Aldrich

Tetrabutylammonium bisulfate solution

~55% in H2O

Synonym(s):

Tetrabutylammonium hydrogen sulfate solution

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About This Item

Linear Formula:
(CH3CH2CH2CH2)4N(HSO4)
CAS Number:
32503-27-8
Molecular Weight:
339.53
Beilstein/REAXYS Number:
3599663
MDL number:
MFCD00011637
UNSPSC Code:
12352107
PubChem Substance ID:
57652417
NACRES:
NA.22

form

liquid

concentration

~55% in H2O

SMILES string

OS([O-])(=O)=O.CCCC[N+](CCCC)(CCCC)CCCC

InChI

1S/C16H36N.H2O4S/c1-5-9-13-17(14-10-6-2,15-11-7-3)16-12-8-4;1-5(2,3)4/h5-16H2,1-4H3;(H2,1,2,3,4)/q+1;/p-1

InChI key

SHFJWMWCIHQNCP-UHFFFAOYSA-M

Application

Tetrabutylammonium bisulfate (Bu4NHSO4) can be used as a reagent along with potassium fluoride dihydrate to synthesize β-fluoro amine derivatives by the ring-opening reaction of aziridines. It may also be utilized as a catalyst in the hydrolysis of aziridines and epoxides to corresponding β-amino alcohols and 1,2-diols, respectively.

pictograms

CorrosionExclamation mark
GHS05,GHS07

signalword

Danger

Hazard Classifications

Acute Tox. 4 Oral - Aquatic Chronic 3 - Eye Dam. 1 - Skin Corr. 1

Storage Class

8A - Combustible corrosive hazardous materials

wgk_germany

WGK 2

flash_point_f

Not applicable

flash_point_c

Not applicable

ppe

Eyeshields, Faceshields, Gloves, type ABEK (EN14387) respirator filter

Certificates of Analysis (COA)

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Ren-Hua Fan et al.
The Journal of organic chemistry, 69(2), 335-338 (2004-01-17)
Potassium fluoride combined with tetrabutylammonium bisulfate is an efficient reagent to convert a variety of aziridines derived from cyclic and acyclic alkenes to beta-fluoro amine derivatives in high yield.
Ren-Hua Fan et al.
Organic & biomolecular chemistry, 1(9), 1565-1567 (2003-08-21)
Bu4NHSO4 (TBAHS) is an effective catalyst for the hydrolysis of aziridines and epoxides under mild and non-metal conditions to give the corresponding beta-amino alcohols and 1,2-diols in high yields. The catalyst can be recycled.
Jia Bao et al.
Environmental science and pollution research international, 21(12), 7650-7655 (2014-03-14)
Severe perfluoroalkyl acid (PFAA) contamination resulting from the fast-growing semiconductor, electrochemical, and optoelectronic industries has been determined in the river water in the vicinity of the Taipei area, Taiwan, during recent years. However, little is known about body burdens of
David J Posson et al.
Nature structural & molecular biology, 20(2), 159-166 (2012-12-25)
Understanding how ion channels open and close their pores is crucial for comprehending their physiological roles. We used intracellular quaternary ammonium blockers, electrophysiology and X-ray crystallography to locate the voltage-dependent gate in MthK potassium channels from Methanobacterium thermoautotrophicum. Blockers bind
Toshihiro Kimura et al.
Inorganic chemistry, 51(23), 13001-13008 (2012-11-15)
A simple monomeric tungstate, TBA(2)[WO(4)] (I, TBA = tetra-n-butylammonium), could act as an efficient homogeneous catalyst for chemical fixation of CO(2) with 2-aminobenzonitriles to quinazoline-2,4(1H,3H)-diones. Various kinds of structurally diverse 2-aminobenzonitriles could be converted into the corresponding quinazoline-2,4(1H,3H)-diones in high
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