Boron tribromide → HCID 68229038, compound

HRID 1853868Notes

Reaction equation

C[O:2][C:3]1[CH:12]=[CH:11][C:10]2[NH:9][C:8](=[O:13])[C:7]3[S:14][CH:15]=[CH:16][C:6]=3[C:5]=2[C:4]=1[C:17]1[CH:22]=[CH:21][C:20]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:25])=[O:24])=[CH:19][CH:18]=1.BrB(Br)Br>>[OH:2][C:3]1[CH:12]=[CH:11][C:10]2[NH:9][C:8](=[O:13])[C:7]3[S:14][CH:15]=[CH:16][C:6]=3[C:5]=2[C:4]=1[C:17]1[CH:18]=[CH:19][C:20]([S:23]([N:26]([CH3:28])[CH3:27])(=[O:24])=[O:25])=[CH:21][CH:22]=1

Participants

Reactant 2

HCID 25134Boron tribromide

HCID 67449270HCID 67449270, compound

Product 1

HCID 68229038HCID 68229038, compoundYield 28.1%

Procedure

Following General Procedure F, the crude material from Example 74, 4-(8-methoxy-4-oxo-4,5-dihydrothieno[2,3-c]quinolin-9-yl)-N,N-dimethylbenzenesulfonamide (33 mg, 0.080 mmol), was reacted with tribromoborane (0.2 mL) to afford the desired product (9 mg, 7% over 2 steps) as a brown solid: 1H NMR (500 MHz, DMSO-d6) δ 11.85 (s, 1H), 9.44 (s, 1H), 7.88 (dd, J=6.8, 1.6 Hz, 2H), 7.79 (d, J=5.4 Hz, 1H), 7.57 (dd, J=6.6, 1.7 Hz, 2H), 7.42 (d, J=8.9 Hz, 1H), 7.20 (d, J=8.9 Hz, 1H), 5.69 (d, J=5.4 Hz, 1H), 2.71 (s, 6H); ESI MS m/z 401 [C19H6N2O4S2+H]+; HPLC 94.5% (AUC), tR=14.84 min.

Sources & evidence

ORD record: ord-45e4093ea2ba4daa99a03a68ddcaa0c4
Source dataset: uspto-grants-2015_02
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08962648B2

Reaction notes

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