Formaldehyde → 4-(4-Chlorophenyl)-1-(1-methyl-piperidin-4-yl)-5-pyridin-4-yl-1,2-dihydro-pyrazol-3-one

HRID 1064077노트

반응식

HRID 1064077 반응식
[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9](=[O:25])[NH:10][N:11]([CH:19]3[CH2:24][CH2:23][NH:22][CH2:21][CH2:20]3)[C:12]=2[C:13]2[CH:18]=[CH:17][N:16]=[CH:15][CH:14]=2)=[CH:4][CH:3]=1.[CH2:26]=O.[BH4-].[Na+]>CO>[Cl:1][C:2]1[CH:7]=[CH:6][C:5]([C:8]2[C:9](=[O:25])[NH:10][N:11]([CH:19]3[CH2:20][CH2:21][N:22]([CH3:26])[CH2:23][CH2:24]3)[C:12]=2[C:13]2[CH:14]=[CH:15][N:16]=[CH:17][CH:18]=2)=[CH:4][CH:3]=1

참가 물질

5

반응물 3

HCID 712FormaldehydeHCID 4311764Sodium borohydrideHCID 9928554HCID 9928554, 화합물

생성물 1

HCID 100904564-(4-Chlorophenyl)-1-(1-methyl-piperidin-4-yl)-5-pyridin-4-yl-1,2-dihydro-pyrazol-3-one

시약·촉매·용매 1

HCID 887Methanol용매

실험 절차

A solution of 4-(4-chlorophenyl)-1-piperidin-4-yl-5-pyridin-4-yl-1,2-dihydro-pyrazol-3-one (0.12 g, 0.34 mmol) in anhydrous methanol (3 mL) was cooled to 0° C. in an ice-water bath and added formaldehyde (3 mL; 37 wt. % in water), followed by sodium borohydride (0.039 g, 1 mmol). After stirring for 1 hour, the reaction was quenched with water and diluted with methylene chloride. The organic layer was washed with brine, dried (Na2SO4), and concentrated in vacuo. The title compound was isolated as a yellow amorphous solid by preparative HPLC. MS (ES+): 369.2 (M+H)+; (ES−): 367.1 (M−H)−.

후처리

  1. customthe reaction was quenched with water
  2. additiondiluted with methylene chloride
  3. washThe organic layer was washed with brine
  4. dry with materialdried (Na2SO4)
  5. concentrationconcentrated in vacuo

출처 및 근거

ORD 기록
ord-56a9d3d970bd49648c2fa4c015eb334c
출처 데이터셋
uspto-grants-2005_11
특허 번호
US06967254B2

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