Hydrochloric Acid → 4-Methylpentyl phosphonic acid

Participants

Reaction Steps

To a solution of 4-methylpentyl phosphonous acid (0.64 g, 4.2 mmole) in acetone (10 ml) and water (10 ml) was added a solution of sodium hydroxide (0.208 g, 0.005 mole) in water (10 ml) until a pH of about 7 was reached. A solution of KMnO4 (0.399 g, 2.52 mmole) in water (10 ml) was added slowly to the vigorously stirred solution of phosphonous acid at 20°-25° C. After the addition (5 minutes), the reaction mixture was stirred for 5 minutes at ambient temperature and acidified with concentrated HCl acid until a pH of 1 was reached. Saturated sodium bisulfite solution was added to the reaction mixture thereby resulting in formation of a precipitate.

Provenance & Evidence