Phenylhydrazine → 4-(Diphenylamino) benzaldehyde phenylhydrazone

HRID 1270029

반응식

HRID 1270029 반응식
[C:1]1([N:7]([C:16]2[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=2)[C:8]2[CH:15]=[CH:14][C:11]([CH:12]=O)=[CH:10][CH:9]=2)[CH:6]=[CH:5][CH:4]=[CH:3][CH:2]=1.[C:22]1([NH:28][NH2:29])[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1>CO>[C:22]1([NH:28][N:29]=[CH:12][C:11]2[CH:14]=[CH:15][C:8]([N:7]([C:16]3[CH:21]=[CH:20][CH:19]=[CH:18][CH:17]=3)[C:1]3[CH:2]=[CH:3][CH:4]=[CH:5][CH:6]=3)=[CH:9][CH:10]=2)[CH:27]=[CH:26][CH:25]=[CH:24][CH:23]=1

참가 물질

4

반응물 2

HCID 7516PhenylhydrazineHCID 77846Benzaldehyde, 4-(diphenylamino)-

생성물 1

HCID 41696414-(Diphenylamino) benzaldehyde phenylhydrazone수율 87%

시약·촉매·용매 1

HCID 887Methanol용매2회

실험 절차

A mixture of 4-(diphenylamino)benzaldehyde (10 g, 0.037 mol) and 300 ml of methanol was added to 500 ml 3-neck round bottom flask equipped with a reflux condenser and a mechanical stirrer. The mixture was mildly heated by a heating mantle until all solid entered into solution. Then a solution of N-phenylhydrazine (5.94 g, 0.055 mol, from Aldrich, Milwauke, Wis.) in 50 ml of methanol was added. The reaction mixture was refluxed for 0.5 hour and then cooled to room temperature. The yellow precipitated product was filtered off, washed with a large amount of methanol, and dried to yield 11.7 g (86.7%) of 4-(diphenylamino)benzaldehyde N-phenylhydrazone. The melting point was found to be 168–169° C. The 1H-NMR spectrum (100 MHz) of the product in CDCl3 was characterized by the following chemical shifts (δ, ppm): 6.55–7.64 (m, 21H, Ar, ═CH, —NH). The IR spectrum of the product was characterized by the following absorption frequencies (KBr, cm−1): ν(N—H) 3294, ν(arene C—H) 3026, ν(C═C in Ar) 1595; 1489, ν(C—N) 1282; 1257, γ(Ar) 750; 731. The mass spectrum of the product was characterized by the following mass peaks (m/z): 364 (100%, M+1), 314, 223, 159.

후처리

  1. additionwas added to 500 ml 3-neck round bottom flask
  2. customequipped with a reflux condenser and a mechanical stirrer
  3. temperatureThe mixture was mildly heated by a heating mantle until all solid
  4. temperatureThe reaction mixture was refluxed for 0.5 hour
  5. filtrationThe yellow precipitated product was filtered off
  6. washwashed with a large amount of methanol
  7. customdried

출처 및 근거

ORD 기록
ord-0a088042896247a3a9858bb74b34bc12
출처 데이터셋
uspto-grants-2007_04
특허 번호
US07202002B2

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