4-Toluenesulfonyl chloride → HCID 87983453, compound

Participants

Reaction Steps

A 6.1 g amount of 7,10,13-tri (t-butoxycarbonyl)-7,10,13-triazapentadecanol, 100 mg of dimethylaminopyridine, and 4 ml of triethylamine in 100 ml of CH2Cl2 was stirred at 0° C. Dropwise, 2.64 of tosyl chloride in 20 ml of CH2Cl2 was added at 0° to 5° C. The reaction was then stirred overnight at room temperature and then 100 ml of CH2Cl2 was added. The reaction mixture was washed with 30 ml of 2N HCl, 30 ml of water and 30 ml of brine. The organic layer was dried over MgSO4 and was filtered. The solvent was evaporated and the residue from the filtrate was purified using a silica gel column and eluted with ethyl acetate/hexane (1:2 v/v). About 7.8 g of 7,10,13-tri(t-butoxycarbonyl)-7,10,13-triazapentadecanol tosylate was collected. The reaction is shown below:

Provenance & Evidence