6-iodo-N-phenylimidazo[1,2-a]pyridine-2-carboxamide → N-phenyl-6-vinylimidazo[1,2-a]pyridine-2-carboxamide

HRID 645365노트

반응식

HRID 645365 반응식
I[C:2]1[CH:3]=[CH:4][C:5]2[N:6]([CH:8]=[C:9]([C:11]([NH:13][C:14]3[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=3)=[O:12])[N:10]=2)[CH:7]=1.[CH2:20](C([Sn])=C(CCCC)CCCC)[CH2:21]CC>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.CN(C=O)C>[C:14]1([NH:13][C:11]([C:9]2[N:10]=[C:5]3[CH:4]=[CH:3][C:2]([CH:20]=[CH2:21])=[CH:7][N:6]3[CH:8]=2)=[O:12])[CH:19]=[CH:18][CH:17]=[CH:16][CH:15]=1

참가 물질

5

반응물 2

HCID 441359396-iodo-N-phenylimidazo[1,2-a]pyridine-2-carboxamideHCID 53438229Tri(butyl)vinyltin

생성물 1

HCID 24771613N-phenyl-6-vinylimidazo[1,2-a]pyridine-2-carboxamide

시약·촉매·용매 2

HCID 178418397HCID 178418397, 화합물촉매HCID 6228Dimethylformamide용매

반응 조건

온도
130 °C

실험 절차

A mixture of 0.73 g of 6-iodo-N-phenylimidazo[1,2-a]pyridine-2-carboxamide, 209 mg of tetrakis(triphenylphosphine)palladium(0), 587 μl of tributylvinyltin and 17 ml of DMF is heated at 130° C. for 10 minutes in a microwave device and then concentrated to dryness. The residue is taken up in 100 ml of water and extracted with two times 70 ml of ethyl acetate. The combined organic phases are washed with a saturated sodium chloride solution, dried over magnesium sulfate and evaporated to dryness under reduced pressure. The solid is triturated from ethyl acetate, filtered off, washed with ethyl acetate and then with isopropyl ether, and taken up in a mixture of methanol and dichloromethane. The insoluble material is filtered off and washed with methanol. The filtrate is concentrated to dryness under reduced pressure to give 0.29 g of N-phenyl-6-vinylimidazo[1,2-a]pyridine-2-carboxamide in the form of a white solid.

후처리

  1. concentrationconcentrated to dryness
  2. extractionextracted with two times 70 ml of ethyl acetate
  3. washThe combined organic phases are washed with a saturated sodium chloride solution
  4. dry with materialdried over magnesium sulfate
  5. customevaporated to dryness under reduced pressure
  6. customThe solid is triturated from ethyl acetate
  7. filtrationfiltered off
  8. washwashed with ethyl acetate
  9. additionwith isopropyl ether, and taken up in a mixture of methanol and dichloromethane
  10. filtrationThe insoluble material is filtered off
  11. washwashed with methanol
  12. concentrationThe filtrate is concentrated to dryness under reduced pressure

출처 및 근거

ORD 기록
ord-4f79e5aba68c425db7a6b72693c8c400
출처 데이터셋
uspto-grants-2010_04
특허 번호
US07704989B2

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