[N+:1]([C:4]1[CH:9]=[CH:8][C:7]([O:10][S:11]([CH:14]2[CH2:16][CH2:15]2)(=[O:13])=[O:12])=[CH:6][CH:5]=1)([O-])=O.[P].[S]>[Pd].C(O)C.CCOC(C)=O>[NH2:1][C:4]1[CH:9]=[CH:8][C:7]([O:10][S:11]([CH:14]2[CH2:16][CH2:15]2)(=[O:13])=[O:12])=[CH:6][CH:5]=1This material was prepared from cyclopropanesulfonic acid 4-nitro-phenyl ester (J. F. King et al; Phosphorus, Sulfur and Silicon and the Related Elements; 1-4; 1993; p 445) (1.096 g) by hydrogenation over 10% Pd/C as catalyst, in ethanol/AcOEt as solvent (10 ml/15 ml) for 16 h, and at atmospheric pressure and RT. Yellow oil (0.55 g). MS (m/e): 214.2 [MH+].
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