Hydrochloric Acid → 2H-1-Benzopyran-2-one, 5,7-dihydroxy-4-phenyl-

HRID 1835680Notes

Reaction equation

HRID 1835680 reaction equation
[C:1]1([CH:9]=[C:7]([OH:8])[CH:6]=[C:4]([OH:5])[CH:3]=1)[OH:2].[C:10]([CH2:18][C:19](OCC)=[O:20])(=O)[C:11]1[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=1.Cl>C(O)C>[OH:2][C:1]1[C:9]2[C:10]([C:11]3[CH:16]=[CH:15][CH:14]=[CH:13][CH:12]=3)=[CH:18][C:19](=[O:20])[O:8][C:7]=2[CH:6]=[C:4]([OH:5])[CH:3]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 359PhloroglucinolHCID 7170Ethyl benzoylacetate

Product 1

HCID 53986492H-1-Benzopyran-2-one, 5,7-dihydroxy-4-phenyl-

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A solution of phloroglucinol (2.00 g) and ethyl benzoylacetate (3.05 g) in ethanol (30 ml) was treated with dry HCl as described in example 1a. The product was recrystallized from ethanol-water (1:1). Yield 3.0 g (75%).

Workup

  1. customThe product was recrystallized from ethanol-water (1:1)

Sources & evidence

ORD record
ord-a0683a756be54efd8ecac75aa520c482
Source dataset
uspto-grants-2004_08
Patent number
US06774103B1

Reaction notes

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