Diisobutylaluminum hydride → (4-Chloroquinazolin-6-yl)methanol

HRID 425763

반응식

HRID 425763 반응식
C[O:2][C:3]([C:5]1[CH:6]=[C:7]2[C:12](=[CH:13][CH:14]=1)[N:11]=[CH:10][N:9]=[C:8]2[Cl:15])=O.CC(C[AlH]CC(C)C)C>C1COCC1>[Cl:15][C:8]1[C:7]2[C:12](=[CH:13][CH:14]=[C:5]([CH2:3][OH:2])[CH:6]=2)[N:11]=[CH:10][N:9]=1

참가 물질

4

반응물 2

HCID 14487Diisobutylaluminum hydrideHCID 18925080Methyl 4-chloroquinazoline-6-carboxylate

생성물 1

HCID 57469640(4-Chloroquinazolin-6-yl)methanol수율 68.5%

시약·촉매·용매 1

HCID 8028Tetrahydrofuran용매

반응 조건

온도
-10 °C

실험 절차

To a solution of methyl-4-chloroquinazoline-6-carboxylate (3.5 g, 0.015 mol) in dry THF (35 mL) at −25° C. was added DIBAL-H (4.4 g, 0.031 mol) and stirred at −25° C. to RT for 2 h. The reaction mixture was cooled to −10° C. and quenched with 10% aqueous NaHCO3 (9 mL). The reaction mixture was extracted with ethylacetate (100 mL), washed with water, brine and dried. The solvent was removed under vacuum to give 4-chloroquinazoline-6-yl methanol (2 g, 66%).

후처리

  1. customquenched with 10% aqueous NaHCO3 (9 mL)
  2. extractionThe reaction mixture was extracted with ethylacetate (100 mL)
  3. washwashed with water, brine
  4. customdried
  5. customThe solvent was removed under vacuum

출처 및 근거

ORD 기록
ord-ebf3c2ba782f47bf838d1fa2bf29ff02
출처 데이터셋
uspto-grants-2012_01
특허 번호
US08106214B2

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