Methyl iodide → HCID 86748467, compound

Participants

Reaction Conditions

Reaction Steps

[1-Hydroxy-2-(2-pyridinyl)ethylidene]bis[phosphonic acid] (3.53 mmol, 1.0 g) is dissolved in 8.8 ml of 1N sodium hydroxide solution and 8.8 ml of distilled water. To this is added iodomethane (17.67 mmol, 1.1 ml) in 18 ml of ethanol. This reaction mixture is heated at 80° C. until complete. The solvent is concentrated in vacuo and the residue is recrystallized from ethanol and water to yield 0.92 g of 2-(2 -hydroxy-2,2-diphosphonoethyl)-1-methyl pyridinium hydroxide, inner salt, monosodium salt.

Provenance & Evidence