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1-(Bromomethyl)-4-chlorobenzene → 5-[1-(4-Chlorobenzyl)-5-methyl-1H-pyrazol-3-yl]-3-[4-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole

HRID 2400590
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HRID 2400590 반응식
[CH3:1][C:2]1[NH:6][N:5]=[C:4]([C:7]2[O:11][N:10]=[C:9]([C:12]3[CH:17]=[CH:16][C:15]([O:18][C:19]([F:22])([F:21])[F:20])=[CH:14][CH:13]=3)[N:8]=2)[CH:3]=1.Br[CH2:24][C:25]1[CH:30]=[CH:29][C:28]([Cl:31])=[CH:27][CH:26]=1.CC(C)([O-])C.[K+]>C1COCC1>[Cl:31][C:28]1[CH:29]=[CH:30][C:25]([CH2:24][N:6]2[C:2]([CH3:1])=[CH:3][C:4]([C:7]3[O:11][N:10]=[C:9]([C:12]4[CH:13]=[CH:14][C:15]([O:18][C:19]([F:20])([F:22])[F:21])=[CH:16][CH:17]=4)[N:8]=3)=[N:5]2)=[CH:26][CH:27]=1
참가 물질실험 절차후처리출처 및 근거반응 노트

참가 물질

5

반응물 3

HCID 693291-(Bromomethyl)-4-chlorobenzeneHCID 23665647Potassium tert-butoxideHCID 469016545-(5-methyl-1H-pyrazol-3-yl)-3-[4-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole2회

생성물 1

HCID 462157425-[1-(4-Chlorobenzyl)-5-methyl-1H-pyrazol-3-yl]-3-[4-(trifluoromethoxy)phenyl]-1,2,4-oxadiazole

시약·촉매·용매 1

HCID 8028Tetrahydrofuran
용매

실험 절차

To a mechanically stirred solution of 5-(5-methyl-1H-pyrazol-3-yl)-3-[4-(trifluoromethoxy)-phenyl]-1,2,4-oxadiazole (Intermediate C, 60 mg, 0.193 mmol) and 1-(bromomethyl)-4-chlorobenzene (53 mg, 0.215 mmol) in dry THF (2 mL) was added potassium tert-butoxide (24 mg, 0.213 mmol) at a temperature of 0° C. The cooling bath was removed, and the reaction mixture was stirred at rt over night. After the addition of DMF (1 mL), the complete reaction mixture was subjected to preparative HPLC affording the title compound in pure form (68 mg, 81%): 1H NMR (400 MHz, CDCl3) 8.25 (d, 2H), 7.33 (d, 2H), 7.31 (d, 2H), 7.11 (d, 2H), 6.82 (s, 1H), 5.42 (s, 2H), 2.27 (s, 3H); ES-MS m/z 435, HPLC RT (Method K) 1.63 min.

후처리

  1. customThe cooling bath was removed
  2. additionAfter the addition of DMF (1 mL)

출처 및 근거

ORD 기록
ord-d19e25ab33314c18b24007f39fb4896e
출처 데이터셋
uspto-grants-2014_08
DOI
10.6084/m9.figshare.5104873.v1
특허 번호
US08796253B2

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