Sodium Carbonate → HCID 59242670, compound

HRID 1630469Notes

Reaction equation

[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[N:15]=[N:16][C:17]([C:21]([F:24])([F:23])[F:22])=[C:18](I)[CH:19]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2].[Cl:25][C:26]1[S:30][C:29](B(O)O)=[CH:28][CH:27]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(COC)OC.O.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>[C:1]([O:5][C:6]([N:8]1[CH2:13][CH2:12][N:11]([C:14]2[N:15]=[N:16][C:17]([C:21]([F:24])([F:23])[F:22])=[C:18]([C:29]3[S:30][C:26]([Cl:25])=[CH:27][CH:28]=3)[CH:19]=2)[CH2:10][CH2:9]1)=[O:7])([CH3:4])([CH3:3])[CH3:2]

Participants

Conditions

Temperature: 110 °C

Procedure

A mixture of 4-(5-iodo-6-trifluoromethyl-pyridazin-3-yl)-piperazine-1-carboxylic acid tert-butyl ester (D10) (0.20 g, 0.436 mmol), 5-chlorothiophene-2-boronic acid (0.082 g, 0.51 mmol), tetrakis(triphenylphosphine)palladium (0) (0.024 g, 0.021 mmol) and sodium carbonate (0.103 g, 0.96 mmol) in dimethoxyethane (3 ml) and water (0.75 ml) was stirred in a sealed tube at 110° C. for 16 h. The mixture was then filtered through a pad of diatomaceous earth and the solvent was evaporated in vacuo. The residue was purified by column chromatography (silica gel; dichloromethane/10% ammonia in methanol (7M) in dichloromethane 97/3) to yield D15 (0.152 g, 67%) as a yellow syrup. C18H20ClF3N4O2S requires 448; Found 449 (MH+).

Workup

filtrationThe mixture was then filtered through a pad of diatomaceous earth
customthe solvent was evaporated in vacuo
customThe residue was purified by column chromatography (silica gel; dichloromethane/10% ammonia in methanol (7M) in dichloromethane 97/3)

Sources & evidence

ORD record: ord-b6852e4a5fe14752a81817dbadf0d77a
Source dataset: uspto-grants-2014_07
DOI: 10.6084/m9.figshare.5104873.v1
Patent number: US08791120B2

Reaction notes

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