Methyltriphenylphosphonium bromide (often referred to as Ph3P+CH3Br-) is a quaternary ammonium salt. It doesn’t contain an ammonium cation but rather a phosphonium cation (Ph3P+) combined with a methyl group (CH3) and a bromine anion (Br-). Despite this difference in cation, it functions similarly to quaternary ammonium salts in various chemical reactions. Here’s how it functions: […]