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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2210692Generated: November 4, 2026

p-Toluenesulfonic acid monohydrate → cis-3-Hydroxy-2-phenylpiperidinium tosylate

https://huagongshe.com/reaction/2210692

Reaction equation

Participants

RoleNameHCIDCharge
Reactantp-Toluenesulfonic acid monohydrateHCID 521998—
Reactant3-Hydroxy-2-phenylpiperidineHCID 18782643—
Productcis-3-Hydroxy-2-phenylpiperidinium tosylateHCID 86748915—

Reaction Steps

The mixture of cis- and trans-isomers of 3-hydroxy-2-phenylpiperidine (Example 2b) and 4-toluenesulfonic acid monohydrate was crystallized from methanol/ethyl acetate to give cis-3-hydroxy-2-phenylpiperidinium tosylate, m.p. 266°-267° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05459270
Source datasetuspto-grants-1995_10
ORD IDord-2498869015544665bb0b51990a9490df
Source noteuspto-grants-1995_10