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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1352214Generated: November 2, 2026

Hydrochloric Acid → 2,6-Dichloro-3-fluoroacetophenone

https://huagongshe.com/reaction/1352214

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHydrochloric AcidHCID 313—
ReactantTert-butyl 4-(2-(tert-butoxycarbonyl)hydrazinyl)piperidine-1-carboxylateHCID 20824232—
Product2,6-Dichloro-3-fluoroacetophenoneHCID 22311317—

Reaction Conditions

Temperature90 °C

Reaction Steps

A mixture of 0.1 mole of 4-(N′-tert-Butoxycarbonyl-hydrazino)-piperidine-1-carboxylic acid tert-butyl ester (starting compound A6) and 150 ml of concentrated hydrochloric acid is heated at 90° C. for 60 min after which the clear solution is evaporated. The residue is washed with tetrahydrofurane, filtered off and dried under vacuum. M. p. 256–259° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07220746B2
Source datasetuspto-grants-2007_05
ORD IDord-7140b3ae4a5a4287899a04f7ca615146
Source noteuspto-grants-2007_05