Pyridine → 3-chloro-N'-(3-nitrobenzoyl)benzohydrazide

HRID 1442058Notes

Reaction equation

HRID 1442058 reaction equation
[Cl:1][C:2]1[CH:3]=[C:4]([CH:9]=[CH:10][CH:11]=1)[C:5]([NH:7][NH2:8])=[O:6].N1C=CC=CC=1.[N+:18]([C:21]1[CH:22]=[C:23]([CH:27]=[CH:28][CH:29]=1)[C:24](Cl)=[O:25])([O-:20])=[O:19]>C(Cl)Cl>[Cl:1][C:2]1[CH:3]=[C:4]([CH:9]=[CH:10][CH:11]=1)[C:5]([NH:7][NH:8][C:24]([C:23]1[CH:27]=[CH:28][CH:29]=[C:21]([N+:18]([O-:20])=[O:19])[CH:22]=1)=[O:25])=[O:6]

Participants

5

Reactant 3

HCID 1049PyridineHCID 8495Benzoyl chloride, 3-nitro-HCID 742893-Chlorobenzohydrazide

Product 1

HCID 38545223-chloro-N'-(3-nitrobenzoyl)benzohydrazide

Reagents, catalysts & solvents 1

HCID 6344DichloromethaneSolvent2×

Conditions

Temperature
0 °C

Procedure

To a solution of 3-chlorobenzohydrazide (1 equivalent) and pyridine (2 equivalents) in CH2Cl2 at 0° C. was added a CH2Cl2 solution of 3-nitrobenzoyl chloride (1 equivalents) and stirred at 0° C. for 1 h and then at room temperature for overnight. The resulting solution was concentrated and diluted with water, basified with NaHCO3, the solid was filtered, washed with water, dried and analyzed to obtain N′1-(3-chlorobenzoyl)-3-nitrobenzene-1-carbohydrazide. 1H NMR (DMSO-d6): δ 10.99 (s, 1H), 10.79 (s, 1H), 8.73 (bs, 1H), 8.43 (bdd, 1H, J=1.2 and 8.1 Hz), 8.33 (bdd, 1J, J=8.4 Hz), 7.95 (s, 1H), 7.87 (m, 2H), 7.67 (bdd, 1H, J=1.2 and 8.1 Hz), 7.57 (t, 1H, J=7.8 Hz); LCMS: purity: 85%; MS (m/e): 320 (MH+).

Workup

  1. waitat room temperature for overnight
  2. concentrationThe resulting solution was concentrated
  3. additiondiluted with water
  4. filtrationthe solid was filtered
  5. washwashed with water
  6. customdried

Sources & evidence

ORD record
ord-7b6a6d27af024921b6d2c74561afa39d
Source dataset
uspto-grants-2010_02
Patent number
US07655797B2

Reaction notes

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