Hydrazine → 2-Hydrazino-5,6-dihydrobenzo[h]quinazoline

HRID 1400093노트

반응식

HRID 1400093 반응식
Cl[C:2]1[N:11]=[CH:10][C:9]2[CH2:8][CH2:7][C:6]3[CH:12]=[CH:13][CH:14]=[CH:15][C:5]=3[C:4]=2[N:3]=1.[NH2:16][NH2:17]>N1C=CC=CC=1>[NH:16]([C:2]1[N:11]=[CH:10][C:9]2[CH2:8][CH2:7][C:6]3[CH:12]=[CH:13][CH:14]=[CH:15][C:5]=3[C:4]=2[N:3]=1)[NH2:17]

참가 물질

4

반응물 2

HCID 9321HydrazineHCID 534860272-Chloro-5,6-dihydrobenzo[h]quinazoline

생성물 1

HCID 597745152-Hydrazino-5,6-dihydrobenzo[h]quinazoline

시약·촉매·용매 1

HCID 1049Pyridine용매

실험 절차

Crude 2-chloro-5,6-dihydrobenzo[h]quinazoline was heated at 120° C. in a mixture of anhydrous pyridine (20 mL) and anhydrous hydrazine (7 mL) for 4 h. The solvent was removed under vacuum and the residue was partitioned between chloroform and 1M aqueous potassium carbonate solution. The organic layer was dried over anhydrous sodium sulfate and concentrated under vacuum to give 2-hydrazinyl-5,6-dihydrobenzo[h]quinazoline as a white solid, 2.16 g. 1H NMR (CDCl3, 300 MHz) 8.27 (d, 1H), 8.20 (s, 1H), 7.35 (m, 2H), 7.21 (d, 1H), 6.42 (s, 1H), 4.00 (br s, 2H), 2.91 (m, 2H), 2.80 (m, 2H) ppm; 13C NMR (CDCl3, 75 MHz) 164.29, 160.00, 156.72, 139.87, 132.83, 131.02, 128.25, 127.25, 125.47, 119.03, 28.54, 24.24; MS (ES) 213 (M+H).

후처리

  1. customThe solvent was removed under vacuum
  2. customthe residue was partitioned between chloroform and 1M aqueous potassium carbonate solution
  3. dry with materialThe organic layer was dried over anhydrous sodium sulfate
  4. concentrationconcentrated under vacuum

출처 및 근거

ORD 기록
ord-a8c27fd403294bd0b92cb77e737a1b5a
출처 데이터셋
uspto-grants-2014_12
특허 번호
US08906922B2

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