Hydrochloric Acid → HCID 54236483, compound

HRID 2108053Notes

Reaction equation

HRID 2108053 reaction equation
[OH:1][C:2]1[CH:3]=[C:4]2[C:9](=[CH:10][CH:11]=1)[O:8][CH:7]([C:12]1[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=1)[CH2:6][C:5]2=[O:20].[CH3:21][O:22][C:23]1[CH:24]=[CH:25][C:26]([CH:29]=O)=[CH:27][CH:28]=1.Cl>C(O)C>[CH3:21][O:22][C:23]1[CH:24]=[CH:25][C:26]([CH:29]=[C:6]2[C:5](=[O:20])[C:4]3[C:9](=[CH:10][CH:11]=[C:2]([OH:1])[CH:3]=3)[O:8][CH:7]2[C:12]2[CH:17]=[CH:16][C:15]([O:18][CH3:19])=[CH:14][CH:13]=2)=[CH:27][CH:28]=1

Participants

5

Reactant 3

HCID 313Hydrochloric AcidHCID 312444-MethoxybenzaldehydeHCID 118180796-hydroxy-2-(4-methoxyphenyl)chroman-4-one

Product 1

HCID 54236483HCID 54236483, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

A hot solution of 27 g of 6-hydroxy-4'-methoxyflavanone and 13.6 g of anisaldehyde in 1,400 ml of ethanol is saturated with HCl and is left for 3 hours to cool; precipitation with water gives 3-p-methoxybenzylidene-6-hydroxy-4'-methoxyflavanone, m.p. 199°-201°.

Workup

  1. temperatureto cool
  2. customprecipitation with water

Sources & evidence

ORD record
ord-c38b45c036bf4128bf144ae397863882
Source dataset
uspto-grants-1990_06
Patent number
US04937257

Reaction notes

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