Select Page


Ethyltriphenylphosphonium Bromide

  • Product Name: Ethyltriphenylphosphonium bromide
  • Cas No.: 1530-32-1
  • Purity: 98%
  • MF: C20H20BrP
  • Appearance: White crystal
  • Package: Drum
  • Certificate: ISO
  • Application: It is s a chemical compound that is commonly used as a reagent in organic synthesis. It is often employed in reactions involving Wittig and related reactions, which are methods for forming carbon-carbon double bonds
  • Sample: Available

Send Email To Us


1 + 6 =

Product Detail

Ethyltriphenylphosphonium bromide is an organic compound with the formula (C6H5)3PC2H5Br and is a white crystal or crystalline powder. Ethyltriphenylphosphonium bromide is mainly used in organic synthesis as an important reagent and intermediate. It can participate in substitution reactions and is often used in electrophilic alkylation reactions in organic synthesis. By reacting bromoethane triphenylphosphine salt with other compounds, the ethyl group can be transferred to the target compound.

Product Parameter

Chemical Formula C20H20BrP CAS Number 1530-32-1
Molar mass 371.25 EINECS number 216-223-3
Appearance White crystal
Melting point 206.5-208.5 °C
Sensibility It has hygroscopic properties
Solubility in water 120 g/L (23 °C)
Content ≥99%



1. Electrophilic alkylation catalyst: Bromoethane triphenylphosphine salt can be used as a catalyst for electrophilic alkylation reaction. It can react with acidic negative ions (such as alkali metal alcohols) to form ethyl ions with high electrophilicity, thus carrying out alkylation reactions and transferring ethyl groups to the substrate.

2. Reaction intermediates: Bromoethane triphenyl phosphine salt can be used as a reaction intermediate to participate in organic synthesis. It can produce products such as triphenylphosphine and ethylene bromide by eliminating the reaction, so as to achieve many different types of reaction transformation, such as N-deprotection, nucleophilic substitution.

3. Cationic catalyst: Bromoethane triphenylphosphonate can be used as a cationic catalyst in some cases, such as for catalyzing the cyclization reaction of olefin or the polydecomposition reaction of olefin.

4. Organic photochemical reaction: chemical bromoethane triphenylphosphonate can be used as an organic photosensitizer to participate in photosensitive chemical reactions or photochemical cross-coupling reactions. Under light excitation, it can produce high-energy ions and intermediates, which participate in the photochemical reaction.

In general, bromoethane triphenylphosphine salts are widely used in organic synthesis as reaction initiators, catalysts and intermediates, with high reactivity and a wide range of reaction pathways. In practical applications, it is necessary to make reasonable selection and operation according to specific reaction needs and conditions.

Multiple uses of products

It use in Chemical Manufacturing,Pharmaceutical Industry.