Pyridine → HCID 135555957, compound

Participants

Reaction Steps

The product from example 20 step a) (24.3 g) and potassium thiocyanate (37.1 g) was stirred in dry DMF (400 ml) with pyridine (13.1 ml) at 0° C. Bromine (4.5 ml) was added over 1 hr. After stirring 2 hrs the mixture was poured into water. The resulting solution was concentrated to low volume then water added. The resulting solid was collected, taken up in 2M hydrochloric acid and precipitated by the addition of saturated sodium bicarbonate solution. The solid was collected, washed with water and dried to give the sub-title compound, (8.7 g).

Provenance & Evidence