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426288
Sigma-Aldrich

Tetrabutylammonium bromid Tetrabutylammonium bromid

Linear Formula:

(CH3CH2CH2CH2)4N(Br)

Empform:

C16H36BrN

Nacres: NA.21
Mdl No: MFCD00011633
Fw: 322.37
Pubchem Substance Id: 24866693
CAS Number: 1643-19-2
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Thuộc tính

Thuộc tính
assay
assay range 98.0%
Description Tetrabutylammonium bromid Tetrabutylammonium bromid
format solid
gradient analysis ACS reagent
greener alternative product score Catalysis
Learn more about the Principles of Green Chemistry.
inchi
inchi key 0.5% tributylamine hydrobromide
indiff. to chromic acid 1S/C16H36N.BrH/c1-5-9-13-17(14-10-6-215-11-7-3)16-12-8-4
inherent viscosity /h5-16H21-4H3
inlet and outlet diam. 1H/q+1
inlet and outlet nptm × nptm /p-1
inlet and outlet size JRMUNVKIHCOMHV-UHFFFAOYSA-M
Yêu cầu giấy phép Not required
Kiểm tra hết hạn 12/31/9999 12:00:00 AM
Kiểm soát nhiệt độ 1554
Hình thức vận chuyển DAS
Lĩnh vực sản phẩm 774

Mô tả

Application

Tetrabutylammonium bromide (TBAB) may be used in the molten state in the following processes:
  • Synthesis of (2S)-5-(3-phenyl-2-phthalimidylpropanoylamino)isophthalic acid.
  • Synthesis of alkyl-substituted pyrroles in the absence of catalyst and organic solvent.
  • Synthesis of dithioacetals from acetals by transthioacetalisation in a solvent free environment.
  • Synthesis of polyamides (PAs) by the polymerization of terephthalic acid and diisocyanates.
  • Catalyze the addition of thiols to conjugated alkenes.
  • Dehydrochlorination of poly(vinyl chloride).

General description

Tetrabutylammonium bromide (TBAB) is a quaternary ammonium compound. It is the most widely used phase transfer catalyst. Its interfacial properties have been studied in case of hydroxide initiated reactions. This may be applied in understanding the mechanism of phase transfer reactions. TBAB is reported to decrease retention time and remove peak tailing by acting as an ion pair reagent during the chromatographic analysis of quaternary ammonium compounds. In the molten state TBAB behaves like an ionic liquid which is a promising green alternative to organic solvents in organic synthesis. Its molar heat capacity, entropy and free energy function have been determined.

THÔNG TIN AN TOÀN

Signal Word

Warning

H302 - H315 - H319 - H412

P264 - P270 - P273 - P301 + P312 - P302 + P352 - P305 + P351 + P338

RIDADRRIDADR

WGK Germany

WGK 3

Flash Point (F)

Flash Point (C)

Target Organs

Risk Statement

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