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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1648740Generated: October 31, 2026

Hydrochloric Acid → HCID 20481737, compound

https://huagongshe.com/reaction/1648740

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantSalicylaldehydeHCID 6998—
ReactantEthyl AcetateHCID 8857—
ProductHCID 20481737HCID 20481737—

Reaction Conditions

Temperature0 °C

Reaction Steps

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.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04413004
Source datasetuspto-grants-1983_11
ORD IDord-1ed9f5b1bca548a48af74450864a8eb7
Source noteuspto-grants-1983_11