Sodium Carbonate → (R)-4-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)phenol

HRID 340123노트

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HRID 340123 반응식
Cl[C:2]1[C:3]2[C@H:10]([CH3:11])[CH2:9][CH2:8][C:4]=2[N:5]=[CH:6][N:7]=1.[OH:12][C:13]1[CH:18]=[CH:17][C:16](B(O)O)=[CH:15][CH:14]=1.C(=O)([O-])[O-].[Na+].[Na+]>C(O)(C)C.O.CCOC(C)=O.Cl[Pd](Cl)([P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1)[P](C1C=CC=CC=1)(C1C=CC=CC=1)C1C=CC=CC=1>[CH3:11][C@H:10]1[C:3]2[C:2]([C:16]3[CH:17]=[CH:18][C:13]([OH:12])=[CH:14][CH:15]=3)=[N:7][CH:6]=[N:5][C:4]=2[CH2:8][CH2:9]1

참가 물질

8

반응물 3

HCID 10340Sodium CarbonateHCID 27343604-Hydroxyphenylboronic acidHCID 59670769(R)-4-chloro-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine

생성물 1

HCID 136385952(R)-4-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)phenol수율 87.1%

시약·촉매·용매 4

HCID 178418476HCID 178418476, 화합물촉매HCID 962Water용매2회HCID 3776Isopropanol용매HCID 8857Ethyl Acetate용매

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온도
100 °C

실험 절차

(R)-4-chloro-5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidine (137 mg, 0.812 mmol) and 4-hydroxybenzeneboronic acid (123 mg, 0.894 mmol) was dissolved in isopropyl alcohol (1.6 mL). Sodium carbonate in water (0.97 mL, 1.0M) was added slowly, followed by bis(triphenylphosphine)palladium chloride (26.5 mg, 0.0378 mmol). The mixture was stirred at 100° C. (bath) for 16 hours. The contents were diluted with water (5 mL) and EtOAc (10 mL). The aqueous layer was separated and extracted with EtOAc (2×5 mL). The combined EtOAc solutions were washed with brine (5 mL) and dried (Na2SO4). The crude was purified by flash chromatography to give (R)-4-(5-methyl-6,7-dihydro-5H-cyclopenta[d]pyrimidin-4-yl)phenol (160 mg, 87%) as viscous oil which solidified upon standing.

후처리

  1. customThe aqueous layer was separated
  2. extractionextracted with EtOAc (2×5 mL)
  3. washThe combined EtOAc solutions were washed with brine (5 mL)
  4. dry with materialdried (Na2SO4)
  5. customThe crude was purified by flash chromatography

출처 및 근거

ORD 기록
ord-b646106251d34f5ab06c9adb28134b8c
출처 데이터셋
uspto-grants-2014_11
특허 번호
US08895566B2

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