Potassium Phosphate, Tribasic → HCID 59589786, compound

HRID 1054342Notes

Reaction equation

Br[C:2]1[N:7]2[N:8]=[C:9]([NH:11][C:12]([CH:14]3[CH2:16][CH2:15]3)=[O:13])[N:10]=[C:6]2[CH:5]=[CH:4][CH:3]=1.[CH2:17]([N:20]1[CH:24]=[C:23](B(O)O)[CH:22]=[N:21]1)[CH2:18][CH3:19].P([O-])([O-])([O-])=O.[K+].[K+].[K+]>C1C=CC([P]([Pd]([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)([P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)[P](C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)(C2C=CC=CC=2)C2C=CC=CC=2)=CC=1.CC(N(C)C)=O>[CH2:17]([N:20]1[CH:24]=[C:23]([C:2]2[N:7]3[N:8]=[C:9]([NH:11][C:12]([CH:14]4[CH2:16][CH2:15]4)=[O:13])[N:10]=[C:6]3[CH:5]=[CH:4][CH:3]=2)[CH:22]=[N:21]1)[CH2:18][CH3:19]

Participants

Conditions

Temperature: 150 °C

Procedure

Cyclopropanecarboxylic acid (5-bromo-[1,2,4]triazolo[1,5-a]pyridin-2-yl)-amide (0.05 g, 0.178 mmol), 1-propyl-1H-pyrazole-4-boronic acid, pinacol ester (0.054 g, 0.231 mmol) and dimethylacetamide (1 mL) were added to a microwave tube containing a stirrer bar, potassium phosphate solution (0.5M in water, 0.7 mL, 0.356 mmol) and tetrakis(triphenylphosphine)palladium (0.02 g, 0.018 mmol). The reaction was heated to 150° C. for 10 min under microwave heating. The crude was purified straight away by preparatory chromatography after filtration. LCMS method: 2, RT: 3.75 min; MI: 311 [M+1]; NMR 1H (DMSO): 0.80-0.88 (m, 7H), 1.78-1.90 (m, 2H), 2.05 (brs, 1H), 4.16 (t, 2H), 7.52 (dd, 1H), 7.55 (d, 1H), 7.66 (t, 1H), 8.51 (s, 1H), 8.86 (s, 1H), 11.11 (brs, 1H).

Workup

additioncontaining a stirrer bar
temperatureheating
customThe crude was purified straight away by preparatory chromatography
filtrationafter filtration

Sources & evidence

ORD record: ord-79f4f64e742a4228963a499d49e82cd3
Source dataset: uspto-grants-2016_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US09394301B2

Reaction notes

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