Potassium Phosphate, Tribasic → US10023592, Example 292

HRID 518502Notes

Reaction equation

Br[C:2]1[CH:3]=[C:4]([O:10][CH2:11][C:12]([F:15])([F:14])[F:13])[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1.[F:16][C:17]1[CH:44]=[C:43]([F:45])[CH:42]=[CH:41][C:18]=1[O:19][C:20]1[CH:25]=[CH:24][C:23]([CH2:26][S:27]([CH2:30][CH3:31])(=[O:29])=[O:28])=[CH:22][C:21]=1B1OC(C)(C)C(C)(C)O1.[O-]P([O-])([O-])=O.[K+].[K+].[K+]>O1CCOCC1.O.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.C1C=CC(P(C2C=CC=CC=2)[C-]2C=CC=C2)=CC=1.Cl[Pd]Cl.[Fe+2]>[F:16][C:17]1[CH:44]=[C:43]([F:45])[CH:42]=[CH:41][C:18]=1[O:19][C:20]1[CH:25]=[CH:24][C:23]([CH2:26][S:27]([CH2:30][CH3:31])(=[O:29])=[O:28])=[CH:22][C:21]=1[C:2]1[CH:3]=[C:4]([O:10][CH2:11][C:12]([F:15])([F:14])[F:13])[C:5](=[O:9])[N:6]([CH3:8])[CH:7]=1

Participants

Conditions

Temperature: 70 °C

Procedure

A mixture of 5-bromo-1-methyl-3-(2,2,2-trifluoroethoxyl)pyridin-2-one (50 mg, 0.18 mmol), 2-[2-(2,4-difluorophenoxy)-5-(ethylsulfonylmethyl)phenyl]-4,4,5,5-tetramethyl-1,3,2-dioxaborolane (88 mg, 0.20 mmol), Pd(dppf)Cl2 (11 mg) and K3PO4 (85 mg, 0.40 mmol) in dioxane (5 mL) and water (5 drops) was purged with nitrogen, capped, and heated to 70° C. for 8 h. After the mixture was filtered, the filtrate was concentrated in vacuo and purified by prep-HPLC to afford the title compound (21 mg, 22%) as a white solid. 1H NMR (CDCl3, 400 MHz) δ 7.41 (m, 2H) 7.35 (m, 1H) 7.30 (m, 1H) 7.07-6.96 (m, 2H) 6.92-6.87 (m, 1H) 6.80 (m, 1H), 4.51 (m, 2H) 4.21 (s, 2H) 3.69 (s, 3H) 2.97 (m, 2H) 1.44 (m, 3H). LCMS (M+H)+=518.

Workup

customwas purged with nitrogen
customcapped
filtrationAfter the mixture was filtered
concentrationthe filtrate was concentrated in vacuo
custompurified by prep-HPLC

Sources & evidence

ORD record: ord-0486be9e6a1b4e2797f21e4f5c284e93
Source dataset: uspto-grants-2015_08
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09115114B2

Reaction notes

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