Boron tribromide → HCID 86689547, compound

HRID 1853865Notes

Reaction equation

O[CH2:2][CH2:3][NH:4][S:5]([C:8]1[CH:13]=[CH:12][C:11]([C:14]2[C:15]3[C:16]4[CH:29]=[CH:28][S:27][C:17]=4[C:18](=[O:26])[NH:19][C:20]=3[CH:21]=[CH:22][C:23]=2[O:24]C)=[CH:10][CH:9]=1)(=[O:7])=[O:6].[Br:30]B(Br)Br>>[Br:30][CH2:2][CH2:3][NH:4][S:5]([C:8]1[CH:13]=[CH:12][C:11]([C:14]2[C:15]3[C:16]4[CH:29]=[CH:28][S:27][C:17]=4[C:18](=[O:26])[NH:19][C:20]=3[CH:21]=[CH:22][C:23]=2[OH:24])=[CH:10][CH:9]=1)(=[O:7])=[O:6]

Participants

Reactant 2

HCID 25134Boron tribromide

HCID 67450881HCID 67450881, compound

Product 1

HCID 86689547HCID 86689547, compoundYield 91%

Procedure

Following General Procedure F, N-(2-hydroxyethyl)-4-(8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)benzenesulfonamide (1.7 g, 3.9 mmol) was reacted with tribromoborane (3.7 mL, 24 mmol) to afford the desired product (1.7 g, 91%) as an off-white solid: 1H NMR (500 MHz, DMSO-d6) δ 11.84 (s, 1H), 9.43 (s, 1H), 8.16 (t, J=5.9 Hz, 1H), 7.94 (d, J=8.3 Hz, 2H), 7.75 (d, J=5.4 Hz, 1H), 7.52 (d, J=8.3 Hz, 2H), 7.41 (d, J=8.9 Hz, 1H), 7.19 (d, J=8.9 Hz, 1H), 5.83 (d, J=5.4 Hz, 1H), 3.51 (t, J=6.4 Hz, 2H), 3.28 (q, J=6.2 Hz, 2H); ESI MS m/z 478 [C19H15BrN2O4S2+H]+; HPLC 98.5% (AUC), tR=15.23 min.

Sources & evidence

ORD record: ord-d4b23c9c71114157a061c6430ff8d0ae
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08962648B2

Reaction notes

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