Triethylamine → 7-Bromo-6-methoxy-1(2H)-isoquinolinone

HRID 389195

반응식

HRID 389195 반응식
[Br:1][C:2]1[CH:7]=[CH:6][C:5](/[CH:8]=[CH:9]/C(O)=O)=[CH:4][C:3]=1[O:13][CH3:14].CC[N:17]([CH2:20]C)CC.C1(P(N=[N+]=[N-])(C2C=CC=CC=2)=[O:29])C=CC=CC=1>C1C=CC=CC=1>[Br:1][C:2]1[CH:7]=[C:6]2[C:5]([CH:8]=[CH:9][NH:17][C:20]2=[O:29])=[CH:4][C:3]=1[O:13][CH3:14]

참가 물질

5

반응물 3

HCID 8471TriethylamineHCID 199401P,P-Diphenylphosphinic azideHCID 580051274-Bromo-3-methoxycinnamic acid

생성물 1

HCID 580051257-Bromo-6-methoxy-1(2H)-isoquinolinone수율 59.9%

시약·촉매·용매 1

HCID 241Benzene용매2회

실험 절차

A portion of the product from Step 1 (12.5 g, 48.6 mmol) was azeotroped with benzene and resuspended in benzene (94 mL). Et3N (9.49 mL, 68.1 mmol) and diphenylphosphoryl azide (10.48 mL, 48.6 mmol) were added, and the reaction mixture stirred at RT for 1 hour. The reaction mixture was then filtered through a pad of silica and eluted with ˜1 L of PhMe; the volatiles were evaporated; the residue was resuspended in diphenylmethane (94 mL); and the mixture heated to reflux for 3 hours (internal temperature 250° C.). The reaction mixture was allowed to cool to RT, stirred overnight, filtered and the solid washed with hexanes (100 mL) to give tan solid (7.4 g). LRMS ESI+ (M+H)+ 254.1.

후처리

  1. filtrationThe reaction mixture was then filtered through a pad of silica
  2. washeluted with ˜1 L of PhMe
  3. customthe volatiles were evaporated
  4. temperatureand the mixture heated
  5. temperatureto reflux for 3 hours (internal temperature 250° C.)
  6. temperatureto cool to RT
  7. stirringstirred overnight
  8. filtrationfiltered
  9. washthe solid washed with hexanes (100 mL)

출처 및 근거

ORD 기록
ord-919e903631084bfda8b1e0e10094874b
출처 데이터셋
uspto-grants-2013_02
특허 번호
US08377874B2

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