tetrabutylammonium bromide cas 1643-19-2

描述

Tetrabutylammonium bromideQuick Details

Chemical Name: Tetrabutylammonium bromide

CAS No: 1643-19-2

Molecular Formula: C16H36BrN

Molecular Weight: 322.37

Molecular Structure:

Appearance: White crystalline powder.

Assay: 99%min

Tetrabutylammonium bromideTypical Properties

Item	Specifications
Appearance	White crystalline powder.
Moisture	≤500ppm
Purity	≥99%

Tetrabutylammonium bromideUsage

(1) Used as a polarographic analysis reagent and also for organic synthesis.

(2) Tetrabutylammonium bromide is also an effective phase transfer catalyst.

A phase transfer catalyst, abbreviated as PTC, is a catalyst capable of transferring a reactant of an aqueous phase (or an organic phase) to an organic phase (or an aqueous phase), that is, a catalyst capable of reacting between an aqueous phase and an organic phase. The PTC has properties such as changing the degree of solvation of ions, increasing ion reactivity, and speeding up the reaction. It solves the problem that the reactants in the past two phases are difficult to react.

Commonly used quaternary ammonium salt phase transfer catalysts are: benzyltriethylammonium chloride, trioctylmethylammonium chloride, tetramethylammonium bromide, tetrapropylammonium chloride, tetrabutylammonium bromide , tetrabutylammonium iodide, triethylbenzylammonium bromide, triethylhexylammonium bromide, triethyloctyl ammonium bromide.

The phase transfer catalyst is widely used in organic synthesis: for preparing R2C type compound (carbene type compound), and further preparing corresponding nitrile, isonitrile, halogenated alkane, dichlorocyclopropane derivative, hydroxycarboxylic acid and diazomethane; Used in alkylation reaction, it can avoid harsh conditions such as anhydrous operation and high product yield compared with traditional methods; it can also be used for redox reaction, ester hydrolysis, cyanide halide displacement reaction, condensation reaction, addition Reaction, polymerization, carbene ring addition reaction, elimination reaction, and the like.

Tetrabutylammonium bromidePackaging and Shipping

Packing: 25KG/ drum/25Kg/bag

Delivery: 7-10 days after receipt the payment.

Tetrabutylammonium bromideStorage

The package is complete and lightly loaded; the warehouse is ventilated, away from open flames, high temperature, and stored separately from oxidants and acids.