Iodoethane → 2-Ethoxynaphthalene-1-carbaldehyde

HRID 647209

Reaction equation

HRID 647209 reaction equation
[OH:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]=1[CH:12]=[O:13].I[CH2:15][CH3:16].C(=O)([O-])[O-].[K+].[K+]>CC(C)=O>[CH2:15]([O:1][C:2]1[CH:11]=[CH:10][C:9]2[C:4](=[CH:5][CH:6]=[CH:7][CH:8]=2)[C:3]=1[CH:12]=[O:13])[CH3:16]

Participants

5

Reactant 3

HCID 6340IodoethaneHCID 11430Potassium CarbonateHCID 128192-Hydroxy-1-naphthaldehyde

Product 1

HCID 880992-Ethoxynaphthalene-1-carbaldehyde

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

2-Hydroxy-1-naphthaldehyde (10 g., 0.058 mole) was combined with acetone (120 ml.), iodoethane (9.9 g., 0.063 mole) and anhydrous potassium carbonate (8.0 g., 0.058 mole) and the mixture heated to reflux for 48 hours. The reaction mixture was cooled to room temperature, filtered and filtrate evaporated to solids (9.0 g.) Recrystallization from isopropyl ether afforded purified 2-ethoxy-1-naphthaldehyde in two crops (4.5 g. and 0.5 g., m.p. 106°-109° C.).

Workup

  1. temperaturethe mixture heated
  2. temperatureto reflux for 48 hours
  3. filtrationfiltered
  4. customfiltrate evaporated to solids (9.0 g.) Recrystallization from isopropyl ether
  5. customafforded
  6. custompurified 2-ethoxy-1-naphthaldehyde in two crops (4.5 g. and 0.5 g., m.p. 106°-109° C.)

Sources & evidence

ORD record
ord-01869157afa74ea5bfba573618782ad5
Source dataset
uspto-grants-1983_10
Patent number
US04407811

Linked notes

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