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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1697630Generated: October 31, 2026

Formaldehyde → 4-(2-Trifluoromethyl-benzenesulfonyl)-1-(3-trifluoromethyl-phenyl)-pyrrolidine-2-carboxylic Acid Ethyl Ester

https://huagongshe.com/reaction/1697630

Reaction equation

Participants

RoleNameHCIDCharge
ReactantFormaldehydeHCID 712—
Reactant(3-Trifluoromethyl-phenylamino)-acetic acid ethyl esterHCID 247832—
Reactant1-Ethenesulfonyl-2-trifluoromethyl-benzeneHCID 23466718—
Product4-(2-Trifluoromethyl-benzenesulfonyl)-1-(3-trifluoromethyl-phenyl)-pyrrolidine-2-carboxylic Acid Ethyl EsterHCID 86646848—

Reaction Steps

In analogy to the procedure described in example 343d, (3-trifluoromethyl-phenylamino)-acetic acid ethyl ester (CAS Reg. No. 2445-84-3) was reacted with paraformaldehyde and 1-ethenesulfonyl-2-trifluoromethyl-benzene (example 243c) to give the title compound as off-white solid. MS (ESI): m/z=496.3 [M+H]+.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08163793B2
Source datasetuspto-grants-2012_04
ORD IDord-8752015ec8dc4356ab22e9d454881b05
Source noteuspto-grants-2012_04