Trifluoroacetic acid → 2-Nitrovinyl-6-methanesulfonyl-1H-indole
반응식
[CH3:1][N:2]([CH3:8])[CH:3]=[CH:4][N+:5]([O-:7])=[O:6].C(O)(C(F)(F)F)=O.[CH3:16][S:17]([C:20]1[CH:28]=C2[C:23]([CH:24]=CN2)=[CH:22][CH:21]=1)(=[O:19])=[O:18]>>[N+:5]([CH:4]=[CH:3][N:2]1[C:8]2[C:23](=[CH:22][CH:21]=[C:20]([S:17]([CH3:16])(=[O:19])=[O:18])[CH:28]=2)[CH:24]=[CH:1]1)([O-:7])=[O:6]참가 물질
4
실험 절차
Combine 1-dimethylamino-2-nitroethylene (892.1 mg, 7.68 mmol) and TFA (9.0 ml) and stir until dissolved. Add 6-methanesulfonyl-1H-indole (1.5 g, 7.68 mmol) and stir at ambient temperature. After 24 hours, pour the reaction mixture into ice/water, extract with ethyl acetate, then wash ethyl acetate with brine and saturated sodium bicarbonate. Filter, wash, and dry the precipitate to give the title compound as a yellow powder: mp >250° C. MS (ACPI): m/e 267.0 (M+1). Analysis for C11H10N2O4S: Calcd: C, 49.62; H, 3.79; N, 10.52; found: C, 49.86; H, 3.97; N, 10.25.