Benzylamine → HCID 19774261, compound

Reaction equation

[CH3:1][S:2]([NH:5][C:6]1[CH:11]=[CH:10][C:9]([CH2:12][CH2:13]CS([O-])(=O)=O)=[CH:8][CH:7]=1)(=[O:4])=[O:3].[CH2:19]([NH2:26])[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1.C(N(CC)CC)C>CN(C)C=O>[CH2:19]([NH:26][CH2:13][CH2:12][C:9]1[CH:8]=[CH:7][C:6]([NH:5][S:2]([CH3:1])(=[O:3])=[O:4])=[CH:11][CH:10]=1)[C:20]1[CH:25]=[CH:24][CH:23]=[CH:22][CH:21]=1

Participants

Procedure

2-(4-Methanesulfonamidophenyl)ethylmethanesulfonate (XXXII) (20 g), benzylamine (7.0 g) and triethylamine (15 ml) were combined in dimethylformamide (75 ml) and heated 18 hours at 100°. The solvent was evaporated and the residue was dissolved in EtOAc, which was washed with saturated NaHCO3, dried (MgSO4) and evaporated to give a dark oil. This was chromatographed on a silica column, eluting 8.0 g of solid product with CHCl3 /MeOH/concentrated NH4OH (15:1:0.1). This solid was treated with MeOH/concentrated HCl (10:1), causing precipitation of 4'-(2-benzylaminoethyl)methanesulfonanilide.HCl (XXIX.HCl), m.p. 244°-245°, whose NMR was consistent with the proposed structure.