Hydrochloric Acid → HCID 20481737, compound

HRID 127947Notes

Reaction equation

HRID 127947 reaction equation
[CH:1](=[O:9])[C:2]1[C:3](=[CH:5][CH:6]=[CH:7][CH:8]=1)O.[ClH:10].C([O:14][CH2:15][CH3:16])(=O)C>>[Cl-:10].[OH:14][C:15]1[C:1]([C:2]2[CH:3]=[CH:5][CH:6]=[CH:7][CH:8]=2)=[O+:9][C:2]2[C:3]([CH:16]=1)=[CH:5][CH:6]=[CH:7][CH:8]=2

Participants

4

Reactant 3

HCID 313Hydrochloric AcidHCID 6998SalicylaldehydeHCID 8857Ethyl Acetate

Product 1

HCID 20481737HCID 20481737, compound

Conditions

Temperature
0 °C

Procedure

88 g of salicylaldehyde were dissolved in 300 ml of anhydrous ethyl acetate together with 132 g of omega-acetoxyacethophenone. The solution was cooled to 0° C. and saturation with gaseous HCl commenced, which took about one hour. The mixture was then left at 4° C. for 48 hours and the crystallised solid filtered off, this consisting of 106 g of 3-hydroxyflavylium chloride.

Workup

  1. waitThe mixture was then left at 4° C. for 48 hours
  2. filtrationthe crystallised solid filtered off

Sources & evidence

ORD record
ord-ecbdcdd14fad4360af7402dc6e1f7c4f
Source dataset
uspto-grants-1981_03
Patent number
US04258055

Reaction notes

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