Hexachloroethane → HCID 46869072, compound

Participants

Reaction Steps

To a solution of N-(2-(2-acetylhydrazinecarbonyl)thiophen-3-yl)-2-(4-methoxyphenyl)acetamide (300 mg, 0.86 mmol) in anh. acetonitrile (6 mL) was added diisopropylethylamine (0.8 mL, 4.84 mmol) and triphenylphosphine (396 mg, 1.51 mmol). After 5 min, hexachloroethane (292 mg, 1.23 mmol) was added to the reaction mixture and then stirred at room temperature overnight under N2(g) inlet. The reaction mixture was evaporated under reduced pressure, partitioned between ethyl acetate and H2O, dried (sodium sulfate), filtered and concentrated under reduced pressure. Purification by flash column chromatography (silica, 40:60 ethyl acetate/hexane) gave 2-(4-methoxyphenyl)-N-(2-(5-methyl-1,3,4-oxadiazol-2-yl)thiophen-3-yl)acetamide (25 mg, 9%). See James, C. A. et al., Tet. Lett. 47 (2006) 511-514. Method [7] m/z 330.0 (M+H); retention time=4.805. 1H-NMR (CDCl3) δ 10.15 (broad s, 1H), 8.18 (d, J=5.4 Hz, 1H), 7.43 (d, J=5.4 Hz, 1H), 7.31 (d, J=7.6 Hz, 2H), 6.92 (d, J=7.6 Hz, 2H), 3.81 (s, 3H), 3.75 (s, 2H), 2.75 (s, 3H).

Provenance & Evidence