Phenol → 4-tert-Butyl-N-(5-chloro-2-phenoxy-pyridin-3-yl)-benzenesulfonamide

HRID 419009Notes

Reaction equation

Br[C:2]1[C:7]([N:8](COC)[S:9]([C:12]2[CH:17]=[CH:16][C:15]([C:18]([CH3:21])([CH3:20])[CH3:19])=[CH:14][CH:13]=2)(=[O:11])=[O:10])=[CH:6][C:5]([Cl:25])=[CH:4][N:3]=1.[C:26]1([OH:32])[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=1.C(=O)([O-])[O-].[K+].[K+]>CC(N(C)C)=O>[C:18]([C:15]1[CH:16]=[CH:17][C:12]([S:9]([NH:8][C:7]2[C:2]([O:32][C:26]3[CH:31]=[CH:30][CH:29]=[CH:28][CH:27]=3)=[N:3][CH:4]=[C:5]([Cl:25])[CH:6]=2)(=[O:11])=[O:10])=[CH:13][CH:14]=1)([CH3:20])([CH3:21])[CH3:19]

Participants

Conditions

Temperature: 150 °C

Procedure

A 5 mL pear-shaped flask was charged with N-(2-bromo-5-chloro-pyridin-3-yl)-4-tert-butyl-N-methoxymethyl-benzenesulfonamide (134 mg, 0.30 mmol), phenol (85 mg, 0.90 mmol), potassium carbonate (250 mg, 18.0 mmol), and DMA (0.9 mL). The heterogeneous solution was heated to 150° C. and stirred overnight. The crude reaction mixture was subsequently purified via reverse phase HPLC (Column: Varian Dynamax 250×21.4 mm Microsorb100-8 C18, 0.1% TFA/H2O (Eluent A): 0.1% TFA/MeCN (Eluent B)): 1H NMR (400 MHz, CDCl3) δ 7.95 (d, 1H), 7.75 (d, 1H), 7.72 (d, 2H), 7.48 (d, 2H), 7.28-7.34 (m, 2H), 7.17-7.21 (m, 1H), 7.05 (bs, 1H), 6.71-6.76 (m, 2H), 1.34 (s, 9H); MS (ES) M+H expect 417.1, found 417.4.

Workup

customThe crude reaction mixture
customwas subsequently purified via reverse phase HPLC (Column: Varian Dynamax 250×21.4 mm Microsorb100-8 C18, 0.1% TFA/H2O (Eluent A): 0.1% TFA/MeCN (Eluent B))

Sources & evidence

ORD record: ord-20037fb7eda54998babe4ddbfe8204e8
Source dataset: uspto-grants-2012_01
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08093247B2

Reaction notes

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