Hydrochloric Acid → HCID 2801521, compound

HRID 236965Notes

Reaction equation

HRID 236965 reaction equation
O[C:2]1([C:20]([O:22][CH2:23][CH3:24])=[O:21])[O:7][C:6]2[C:8]([CH2:16][CH2:17][CH3:18])=[C:9]3[C:14](=[CH:15][C:5]=2[C:4](=[O:19])[CH2:3]1)[CH2:13][CH2:12][CH2:11][CH2:10]3.Cl>C(O)C>[O:19]=[C:4]1[CH:3]=[C:2]([C:20]([O:22][CH2:23][CH3:24])=[O:21])[O:7][C:6]2[C:8]([CH2:16][CH2:17][CH3:18])=[C:9]3[C:14](=[CH:15][C:5]1=2)[CH2:13][CH2:12][CH2:11][CH2:10]3

Participants

4

Reactant 2

HCID 313Hydrochloric AcidHCID 20304508HCID 20304508, compound

Product 1

HCID 2801521HCID 2801521, compound

Reagents, catalysts & solvents 1

HCID 702EthanolSolvent

Procedure

The product of step (a) (1 g) in ethanol (50 ml) containing concentrated HCl (1 ml) was heated under reflux for 4 hours. Evaporation of the resulting solution to a volume of 20 mls caused the chromone ester, identical to that of Example 1(d) to crystallise.

Workup

  1. temperaturewas heated
  2. temperatureunder reflux for 4 hours
  3. customEvaporation of the resulting solution to a volume of 20 mls
  4. customidentical to that of Example 1(d) to crystallise

Sources & evidence

ORD record
ord-2df78cbb04944eb8a6c1518fbe830b12
Source dataset
uspto-grants-1979_06
Patent number
US04159273

Reaction notes

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