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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1766278Generated: November 3, 2026

Phosphoric Acid → HCID 17980106, compound

https://huagongshe.com/reaction/1766278

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPhosphoric AcidHCID 1004—
ReactantAmmonium HydroxideHCID 14923—
Reactant1-Methyl-4-piperidoneHCID 74049—
ReactantBenzenesulfonic acid 7-bromo-1H-indol-5-yl esterHCID 86592475—
SolventAcetic AcidHCID 176—
ProductHCID 17980106HCID 17980106—

Reaction Conditions

Temperature75 °C

Reaction Steps

Combine benzenesulfonic acid 7-bromo-1H-indole-5-yl ester and 1-methyl-4-piperidone (4 eq.) in acetic acid. Heat to about 75° C. before adding 2.0 N H3PO4 (3 eq.). After about 6 hours, cool to room temperature and pour into a mixture of ammonium hydroxide in ice water. Separate the organic layer and dry over Na2SO4 and concentrated. Purify to give the title compound.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07230011B2
Source datasetuspto-grants-2007_06
ORD IDord-46953f80c8524a64bb9010793e26f803
Source noteuspto-grants-2007_06