Water → HCID 21471860, compound

Participants

Reaction Steps

To a mixture of 6.7 g of 4,5,6,7-tetrahydro-8H-thieno[2,3-c]azepin-8-one and 4.5 g of sodium borohydride in 70 ml of tetrahydrofuran was added boron trifluoride-ether complex dropwise under ice-cooling and the mixture was refluxed under heating for an hour. The mixture was poured into water, washed with chloroform, made alkaline with 10% potassium hydroxide solution and extracted with chloroform. The extract was washed with water, dried and concentrated to give 4.1 g of 5,6,7,8-tetrahydro-4H-thieno[2,3-c]azepine as an oil.

Provenance & Evidence