1779-49-3

Methyl triphenylphosphonium bromide CAS No 1779-49-3, EINECS number: 217-218-9, molecular formula: C19H18P.Br, Molecular weight: 357.23; It is a white crystal. Melting point 234-235 ℃. Methyl triphenyl phosphonium bromide cas:1779-49-3, also known as methyltriphenylphosphine bromide; Methyl triphenylphosphine bromide; Triphenylmethylphosphonium bromide; Triphenylmethylphosphonium bromide; Triphenylmethylphosphorus bromide; Its use is for organic synthesis. Wittig reagent is used for the preparation of alkenes and increasing the carbon number of unsaturated carbon chains. The precursor of the Wittig reaction is widely used in the synthesis of unsaturated bonds in liquid crystal materials. It also has a wide range of applications in organic synthesis. It is a good cationic phase transition catalyst; Used as a pharmaceutical intermediate and phase transfer catalyst. Methyl triphenylphosphine bromide also has important applications in organic synthesis. It is widely used as a precursor for the Wittig reaction in the synthesis of unsaturated bonds in liquid crystal materials. Through this reaction, organic compounds with specific structures and functions can be efficiently prepared, providing important raw material support for fields such as polymer materials, pharmaceutical intermediates, and fine chemicals.