Ethanol → 2-(2-(2-Oxoimidazolidin-1-yl)ethylamino)-4-(5-(thiophen-2-yl)thiophen-2-yl)pyrimidine-5-carbonitrile

HRID 2267437Notes

Reaction equation

HRID 2267437 reaction equation
Br[C:2]1[S:6][C:5]([C:7]2[C:12]([C:13]#[N:14])=[CH:11][N:10]=[C:9]([NH:15][CH2:16][CH2:17][N:18]3[CH2:22][CH2:21][NH:20][C:19]3=[O:23])[N:8]=2)=[CH:4][CH:3]=1.[S:24]1[CH:28]=[CH:27][CH:26]=[C:25]1B(O)O.C(=O)([O-])[O-].[Na+].[Na+].C(O)C>ClCCl.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>[O:23]=[C:19]1[NH:20][CH2:21][CH2:22][N:18]1[CH2:17][CH2:16][NH:15][C:9]1[N:8]=[C:7]([C:5]2[S:6][C:2]([C:25]3[S:24][CH:28]=[CH:27][CH:26]=3)=[CH:3][CH:4]=2)[C:12]([C:13]#[N:14])=[CH:11][N:10]=1

Participants

7

Reactant 4

HCID 702EthanolHCID 10340Sodium CarbonateHCID 27339602-Thiopheneboronic acidHCID 602045694-(5-Bromothiophen-2-yl)-2-(2-(2-oxoimidazolidin-1-yl)ethylamino)pyrimidine-5-carbonitrile

Product 1

HCID 602045672-(2-(2-Oxoimidazolidin-1-yl)ethylamino)-4-(5-(thiophen-2-yl)thiophen-2-yl)pyrimidine-5-carbonitrile

Reagents, catalysts & solvents 2

HCID 178418397HCID 178418397, compoundCatalystHCID 6344DichloromethaneSolvent

Conditions

Temperature
130 °C

Procedure

4-(5-Bromothiophen-2-yl)-2-(2-(2-oxoimidazolidin-1-yl)ethylamino)pyrimidine-5-carbonitrile (0.08 g, 0.2 mmol), thiophen-2-ylboronic acid (0.052 g, 04 mmol), sodium carbonate (1.5 mL of 2 M solution, 1 mmol) were added to a microwave tube containing ethanol (1.5 mL). The tube was flushed with nitrogen and tetrakis(triphenylphosphine)palladium (0.06 g, 0.054 mmol) was added. The tube was capped and heated to 130° C. for 30 min in a Personal Chemistry microwave. The reaction was diluted with dichloromethane and washed with saturated aqueous sodium bicarbonate, water and brine. The organic layer was then dried with sodium sulfate, reduced in vacuo and purified by flash chromatography on silica gel using a gradient of 0 to 10% methanol in dichloromethane to afford a yellow solid which recrystallized from ethyl acetate. Yield=0.066 g. MS (M+H)+ 397.

Workup

  1. additionwas added
  2. customThe tube was capped
  3. washwashed with saturated aqueous sodium bicarbonate, water and brine
  4. dry with materialThe organic layer was then dried with sodium sulfate
  5. custompurified by flash chromatography on silica gel using a gradient of 0 to 10% methanol in dichloromethane
  6. customto afford a yellow solid which
  7. customrecrystallized from ethyl acetate

Sources & evidence

ORD record
ord-13821481fe2d4cca99d88871ec9c51f6
Source dataset
uspto-grants-2010_12
Patent number
US07858785B2

Reaction notes

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