Trifluoroacetic acid → 3-(9-bromo-4,5-dihydrobenzo[b]thieno[2,3-d]oxepin-2-yl)-4-(2-chloro-4-(trifluoromethyl)phenyl)-4H-1,2,4-triazole

HRID 84576

Reaktionsgleichung

[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[O:14][CH2:13][CH2:12][C:11]3[CH:10]=[C:9]([C:15]4O[CH:17]=[N:18][N:19]=4)[S:8][C:7]=3[C:6]=2[CH:20]=1.[Cl:21][C:22]1[CH:28]=[C:27]([C:29]([F:32])([F:31])[F:30])[CH:26]=[CH:25][C:23]=1[NH2:24].C(O)(C(F)(F)F)=O.CCN(C(C)C)C(C)C>C1(C)C=CC=CC=1>[Br:1][C:2]1[CH:3]=[CH:4][C:5]2[O:14][CH2:13][CH2:12][C:11]3[CH:10]=[C:9]([C:15]4[N:24]([C:23]5[CH:25]=[CH:26][C:27]([C:29]([F:30])([F:31])[F:32])=[CH:28][C:22]=5[Cl:21])[CH:17]=[N:18][N:19]=4)[S:8][C:7]=3[C:6]=2[CH:20]=1

Komponenten

Reaktionsbedingungen

Temperatur: 160 °C

Versuchsvorschrift

A microwave tube charged with 2-(9-bromo-4,5-dihydro-6-oxa-1-thia-benzo[e]azulen-2-yl)-[1,3,4]oxadiazole (200 mg; 0.57 mmol), 2-chloro-4-trifluoromethylaniline (0.12 ml; 0.86 mmol), TFA (64 μl; 0.86 mmol) and toluene (1.5 ml) was heated in a microwave at 160° C. for 30 min. The reaction mixture was basified with DIPEA (0.2 ml), volatiles removed in vacuo and the residue purified by prep. LCMS to give 289 as a white solid (109 mg; 36%). δH (400 MHz, CDCl3) 3.13 (t, J=5.2, 2H), 4.29 (t, J=5.2, 2H), 6.89-6.93 (m, 2H), 7.24-7.28 (m, 1H), 7.62-7.67 (m, 2H), 7.80-7.83 (m, 1H), 7.98 (s, 1H), 8.26 (s, 1H). [M+H]+: 527

Aufarbeitung

customvolatiles removed in vacuo
customthe residue purified by prep

Quellen und Nachweise

ORD-Eintrag: ord-b290c766a22848a6b516e0af32d80fe9
Quelldatensatz: uspto-grants-2014_09
DOI: 10.6084/m9.figshare.5104873.v1
Patentnummer: US08846762B2

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