[C:1]1([CH2:7][CH2:8][C:9]([NH2:11])=O)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.COC1C=CC(P2(SP(C3C=CC(OC)=CC=3)(=S)S2)=[S:21])=CC=1.CCCCCC.C(Cl)Cl>C1(C)C=CC=CC=1.C(O)(=O)C>[C:1]1([CH2:7][CH2:8][C:9]([NH2:11])=[S:21])[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1To a solution of 3-phenylpropionamide (1.653 g, 6.827 mmol) in toluene (20 mL) was added Lawesson's reagent (0.716 g, 1.77 mmol). The reaction was refluxed overnight, cooled to room temperature and concentrated yielding an orange oil. Flash chromatography of this oil (1:1 hexane:methylene chloride with 1% acetic acid) yielded 3-phenylthiopropionamide (0.070 g) as a white solid: mp 82°-83° C.; 1HNMR (DMSO d6) 300 mHz 9.35 (br s, 1 H), 9.15 (br s, 1 H), 7.34-7.10 (m, 2 H), 2.95 (t, J=8.48 Hz, 2 H), 2.72 (t, J=8.48 Hz, 2 H).
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