p-Bromobenzenesulfonyl chloride → 3-Cyclopentylpropyl 4-bromobenzenesulfonate

To a solution of 3-cyclopentyl-1-propanol (2.0 g, 15.6 mmol) in triethylamine (3.25 ml, 23.4 mmol) and dichloromethane (50 ml) was added 4-bromobenzenesulfonyl chloride (4.4 g, 17.6 mmol). The solution was stirred for 16 h, diluted with 2 N aqueous hydrochloric acid (100 ml) and extracted with dichloromethane (100 ml). The extract was washed with saturated aqueous sodium hydrogen carbonate solution (100 ml) and brine (100 ml), dried (MgSO4) and concentrated in vacuo to give the title compound as a white crystalline solid (4.50 g, 80%).

1. extractionextracted with dichloromethane (100 ml)
2. washThe extract was washed with saturated aqueous sodium hydrogen carbonate solution (100 ml) and brine (100 ml)
3. dry with materialdried (MgSO4)
4. concentrationconcentrated in vacuo

ORD record

ord-71e6cd67d026411793d852f7d654c0d8

Source dataset

uspto-grants-2003_08

DOI

10.6084/m9.figshare.5104873.v1

Patent number

US06610711B2