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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2352477Generated: November 1, 2026

Phosphoric Acid → Alpha-Ionone

https://huagongshe.com/reaction/2352477

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphoric AcidHCID 1004—
ReactantI2-IononeHCID 638014—
ProductAlpha-IononeHCID 5282108—

Reaction Steps

The same procedure was used as for β-ionone except phosphoric acid was used as the cyclizing agent. Boiling point 63°-65° C./0.1 mm; nD25 1.4960; yield 3.8 g.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04877607
Source datasetuspto-grants-1989_10
ORD IDord-00b2262b598d49bb8f98421ac3454553
Source noteuspto-grants-1989_10