Sodium Hydroxide → 6-carboxy-5-methyl-2-phenyl-3-propargyl-4(3H)-pyrimidinone

HRID 1451

반응식

HRID 1451 반응식
C([O:3][C:4]([C:6]1[N:11]=[C:10]([C:12]2[CH:17]=[CH:16][CH:15]=[CH:14][CH:13]=2)[N:9]([CH2:18][C:19]#[CH:20])[C:8](=[O:21])[C:7]=1[CH3:22])=[O:5])C.[OH-].[Na+]>C(O)C.C1COCC1>[C:4]([C:6]1[N:11]=[C:10]([C:12]2[CH:13]=[CH:14][CH:15]=[CH:16][CH:17]=2)[N:9]([CH2:18][C:19]#[CH:20])[C:8](=[O:21])[C:7]=1[CH3:22])([OH:5])=[O:3]

참가 물질

5

반응물 2

HCID 14798Sodium HydroxideHCID 196907226-ethoxycarbonyl-5-methyl-2-phenyl-3-propargyl-4(3H)-pyrimidinone

생성물 1

HCID 196907156-carboxy-5-methyl-2-phenyl-3-propargyl-4(3H)-pyrimidinone수율 53.2%

시약·촉매·용매 2

HCID 702Ethanol용매HCID 8028Tetrahydrofuran용매

실험 절차

To a solution of 1.81 g (6.1 mmol) of 6-ethoxycarbonyl-5-methyl-2-phenyl-3-propargyl-4(3H)-pyrimidinone in 100 mL of ethanol and 50 mL of THF was added 50 mL of 5% aqueous sodium hydroxide. The mixture was stirred at room temperature for 24 h and rotovapped to remove the bulk of the organic solvents. The residue was diluted with 50 mL of 5% aqueous sodium hydroxide and washed with 100 mL of ether. The aqueous phase was acidified with concentrated hydrochloric acid and extracted with two 100 mL portions of ethyl acetate. The combined ethyl acetate extracts were washed with 50 mL of brine, dried over MgSO4 and concentrated to leave 0.87 g (53%) of crude 6-carboxy-5-methyl-2-phenyl-3-propargyl-4(3H)-pyrimidinone as a brown oil.

후처리

  1. customto remove the bulk of the organic solvents
  2. additionThe residue was diluted with 50 mL of 5% aqueous sodium hydroxide
  3. washwashed with 100 mL of ether
  4. extractionextracted with two 100 mL portions of ethyl acetate
  5. washThe combined ethyl acetate extracts were washed with 50 mL of brine
  6. dry with materialdried over MgSO4
  7. concentrationconcentrated

출처 및 근거

ORD 기록
ord-c70bc697c73a4481b3467e71a66893b5
출처 데이터셋
uspto-grants-1998_03
특허 번호
US05726124

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