Pyridine → 2-​Dodecenal

Participants

Reaction Steps

A solution of 9.5 ml of pyridine in 150 ml of methylene chloride was treated in one portion with 6.0 g of chromium trioxide. The mixture was stirred for 15 minutes at room temperature and then 1.60 g of 3Z-dodecen-1-ol in 3 ml of methylene chloride was added. After 5 minutes the reaction mixture was diluted with 200 ml of ether and then filtered through celite. The filtrate was washed three times with 100 ml of 5% aqueous sodium hydroxide, then with ice-cold 5% hydrochloric acid, saturated sodium bicarbonate and finally with brine. After drying over sodium sulfate, the solvent was evaporated giving 1.5 g of 3Z-dodecen-1-al.

Provenance & Evidence