Pyridine → HCID 732341, compound

Participants

Reaction Conditions

Reaction Steps

A mixture of 4-nitrobenzenesulfonyl chloride (1.78 g, 8.0 mmol), pyridine (0.78 mL, 9.6 mmol), and hexamethyleneimine (0.796 g, 8.02 mmol) in dichloromethane (22 mL) was stirred for 5 hrs at 0° C., diluted with 1N HCl, and extracted with dichloromethane. The organic layer was dried (Na2SO4), filtered, concentrated, and triturated with diethyl ether to give 1-(4-nitro-benzenesulfonyl)-azepane as a brown solid. The solid was added to a mixture of HCO2NH4 (1.91 g, 30.3 mmol) and 10% Pd/C (catalytic amount) in methanol (20 mL) and ethyl acetate (4 mL), stirred overnight at about 25° C., filtered, concentrated, diluted with water, and extracted with dichloromethane. The isolated organic layer was dried (Na2SO4), filtered and concentrated to give the title compound. 1H NMR (300 MHz, CDCl3) δ 8.35 (d, 2H), 7.97 (d, 2H), 3.31 (t, 4H), 1.70-1.79 (m, 4H), 1.56-1.63 (m, 4H).

Provenance & Evidence