Aniline → Salicylideneaniline

HRID 225175Notes

Reaction equation

HRID 225175 reaction equation
[OH:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]=O.[NH2:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1>C(O)C>[OH:1][C:2]1[CH:9]=[CH:8][CH:7]=[CH:6][C:3]=1[CH:4]=[N:10][C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1

Participants

4

Reactant 2

HCID 6115AnilineHCID 6998Salicylaldehyde

Product 1

HCID 136621Salicylideneaniline

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

o-Hydroxybenzaldehyde (0.20 mole) was treated with aniline with vigorous stirring in a 1 liter Erlenmeyer Flask. After 15 min., 33 cc of 95% ethanol was added and the reaction mixture was stirred vigorously for an additional 5 min. The reaction mixture was left standing at room temperature for 10 min., then it was placed in an ice-bath for 0.5 hour. The crystals which formed were collected, washed with 95% ethanol, and air dried. Recrystallization from 85% ethanol yielded N-(o-hydroxybenzylidene)aniline. m.p. 47°-49° C.

Workup

  1. stirringthe reaction mixture was stirred vigorously for an additional 5 min
  2. waitThe reaction mixture was left
  3. waitstanding at room temperature for 10 min.
  4. waitit was placed in an ice-bath for 0.5 hour
  5. customThe crystals which formed
  6. customwere collected
  7. washwashed with 95% ethanol, and air
  8. customdried
  9. customRecrystallization from 85% ethanol

Sources & evidence

ORD record
ord-7530ef2c376245c9b443f5de6187f395
Source dataset
uspto-grants-1980_11
Patent number
US04235929

Reaction notes

Loading…