Hydrochloric Acid → 2,3-Dihydroxy-1-naphthaldehyde

HRID 1756699Notes

Reaction equation

HRID 1756699 reaction equation
[C:1]1([OH:7])C=CC=CC=1.[OH:8][C:9]1[C:18]([OH:19])=[CH:17][C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[CH:10]=1.Cl.P(=O)(O)(O)O>CC(C)=O>[OH:8][C:9]1[C:18]([OH:19])=[CH:17][C:16]2[C:11](=[CH:12][CH:13]=[CH:14][CH:15]=2)[C:10]=1[CH:1]=[O:7]

Participants

6

Reactant 4

HCID 313Hydrochloric AcidHCID 996PhenolHCID 1004Phosphoric AcidHCID 70912,3-Dihydroxynaphthalene

Product 1

HCID 133438102,3-Dihydroxy-1-naphthaldehyde

Reagents, catalysts & solvents 1

HCID 180AcetoneSolvent

Procedure

The procedure of Production Example 3 was repeated except that phenol was replaced with 2,3-dihydroxynaphthalene, the 35% concentrated hydrochloric acid was replaced with 0.1 ml of phosphoric acid, and the reaction solution to be subjected to reflux was added with 100 g of acetone and then was heated under reflux, to give a 2,3-dihydroxynaphthalene-formaldehyde condensate.

Workup

  1. temperatureto reflux
  2. temperaturewas heated
  3. temperatureunder reflux

Sources & evidence

ORD record
ord-6deb15e2d9f64e7b97058cd2968ac4c0
Source dataset
uspto-grants-1995_08
Patent number
US05442017

Reaction notes

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