Potassium Iodide → 3-(((2-(Diethylamino)ethyl)(methyl)amino)methyl)benzoic acid

HRID 625385

Reaction equation

[CH2:1]([N:3]([CH2:8][CH3:9])[CH2:4][CH2:5][NH:6][CH3:7])[CH3:2].Br[CH2:11][C:12]1[CH:13]=[C:14]([CH:18]=[CH:19][CH:20]=1)[C:15]([OH:17])=[O:16].C(=O)([O-])[O-].[K+].[K+].[I-].[K+]>CN(C)C=O>[CH2:1]([N:3]([CH2:8][CH3:9])[CH2:4][CH2:5][N:6]([CH2:11][C:12]1[CH:13]=[C:14]([CH:18]=[CH:19][CH:20]=1)[C:15]([OH:17])=[O:16])[CH3:7])[CH3:2]

Participants

Conditions

Temperature: 90 °C

Procedure

Into a 1000-mL round bottom flask, was placed a solution of N1,N1-diethyl-N2-methylethane-1,2-diamine (9.1 g, 63.00 mmol, 1.50 equiv, 90%) in N,N-dimethylformamide (500 mL), 3-(bromomethyl)benzoic acid (10 g, 46.51 mmol, 1.00 equiv), potassium carbonate (7.8 g, 56.12 mmol, 1.20 equiv), and potassium iodide (1.55 g, 9.34 mmol, 0.20 equiv). The resulting solution was stirred for 2 h at 90° C. in an oil bath. The solids were filtered out. The resulting mixture was concentrated under vacuum. The crude product (10 g) was purified by reverse phase HPLC eluting with 0.05% TFA in a water/CH3CN gradient. The product was obtained as 6 g (46%) of a white solid. 1H-NMR (300 MHz, CDCl3, ppm): δ 8.01 (m, 1H), 7.89-7.87 (m, 1H), 7.28-7.22 (m, 2H), 3.99 (s, 2H), 2.97-2.72 (m, 8H), 2.28 (s, 3H), 1.13-1.01 (m, 6H). MS (ES, m/z): 265 [M+H]+.

Workup

customInto a 1000-mL round bottom flask, was placed
filtrationThe solids were filtered out
concentrationThe resulting mixture was concentrated under vacuum
customThe crude product (10 g) was purified by reverse phase HPLC
washeluting with 0.05% TFA in a water/CH3CN gradient

Sources & evidence

ORD record: ord-caf790e52b57421fbc5fcb5407053606
Source dataset: uspto-grants-2016_04
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09301951B2

Linked notes

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