Dimethylformamide → 6-Cyano-2-(2-fluoro-4-trimethylsilanyl-phenylamino)-nicotinic acid methyl ester

HRID 2063970노트

반응식

HRID 2063970 반응식
[CH3:1][O:2][C:3](=[O:23])[C:4]1[CH:9]=[CH:8][C:7](Cl)=[N:6][C:5]=1[NH:11][C:12]1[CH:17]=[CH:16][C:15]([Si:18]([CH3:21])([CH3:20])[CH3:19])=[CH:14][C:13]=1[F:22].[CH3:24][N:25](C)C=O>[C-]#N.[Zn+2].[C-]#N.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>[CH3:1][O:2][C:3](=[O:23])[C:4]1[CH:9]=[CH:8][C:7]([C:24]#[N:25])=[N:6][C:5]=1[NH:11][C:12]1[CH:17]=[CH:16][C:15]([Si:18]([CH3:21])([CH3:20])[CH3:19])=[CH:14][C:13]=1[F:22]

참가 물질

5

반응물 2

HCID 6228DimethylformamideHCID 591401556-Chloro-2-(2-fluoro-4-trimethylsilanyl-phenylamino)-nicotinic acid methyl ester

생성물 1

HCID 591401856-Cyano-2-(2-fluoro-4-trimethylsilanyl-phenylamino)-nicotinic acid methyl ester

시약·촉매·용매 2

HCID 11186Zinc cyanide (Zn(CN)2)촉매HCID 178418397HCID 178418397, 화합물촉매

실험 절차

A degassed suspension of 6-chloro-2-(2-fluoro-4-trimethylsilanyl-phenylamino)-nicotinic acid methyl ester (4.8 g, 12.4 mmol), zinc cyanide (1.2 g, 10.2 mmol), and Pd(PPh3)4 (1.6 g, 1.36 mmol) in dimethylformamide (14 mL) was subjected to microwave irradiation at 190° C. for 20 minutes. This procedure was repeated seven times and all the reaction mixtures were combined and concentrated in vacuo. The resultant residue was dissolved in ethyl acetate and washed with a saturated aqueous solution of sodium hydrogen carbonate. The aqueous layer was separated and extracted with ethyl acetate three times. The combined organic extracts were washed with water and then brine, dried (Na2SO4), filtered and evaporated in vacuo. The resultant residue was subjected to flash chromatography (silica, gradient 0% to 100%, diethyl ether in pentane) to afford the title compound as a yellow solid (18.2 g). LCMS (method B): RT=4.74 min, M+H+=344.

후처리

  1. customirradiation at 190° C. for 20 minutes
  2. customthe reaction mixtures
  3. concentrationconcentrated in vacuo
  4. dissolutionThe resultant residue was dissolved in ethyl acetate
  5. washwashed with a saturated aqueous solution of sodium hydrogen carbonate
  6. customThe aqueous layer was separated
  7. extractionextracted with ethyl acetate three times
  8. washThe combined organic extracts were washed with water
  9. dry with materialbrine, dried (Na2SO4)
  10. filtrationfiltered
  11. customevaporated in vacuo

출처 및 근거

ORD 기록
ord-4ec28e01c4784ab0b4c0ff59d3d95944
출처 데이터셋
uspto-grants-2012_10
특허 번호
US08288408B2

반응 노트

불러오는 중…