(2-(Methylthio)ethyl)amine → 3-Chloro-1-[2-(methylsulfanyl)ethyl]-4-phenyl-1H-pyrrole-2,5-dione

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Reaction Steps

A solution of 3-chloro-4-phenylfuran-2,5-dione (1.00 mmol, 209 mg) and 2-aminoethyl methyl sulphide (1.00 mmol, 91 mg) in glacial acetic acid (2 mL) was heated in a microwave reactor at 120° C. for two min. After cooling, the solvent was evaporated at reduced pressure. The residue was partitioned between water and CH2Cl2. The organic phase was evaporated and the crude product was purified by HPLC (95% 0.1M ammonium acetate buffer: 5% CH3CN→100% CH3CN) to give 152 mg (54%) of the title compound. 1H NMR (400 MHz, CDCl3): δ 7.97-7.90 (m, 2H), 7.53-7.47 (m, 3H), 3.86 (t, J=6.8 Hz, 2H), 2.78 (t, J=6.8 Hz, 2H), 2.16 (s, 3H).

Provenance & Evidence