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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2291489Generated: October 31, 2026

Aniline → 3-Ethyl 5-methyl 6-(chlorodifluoromethyl)-4-(phenylamino)-2-(trifluoromethyl)-3,5-pyridinedicarboxylate

https://huagongshe.com/reaction/2291489

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAnilineHCID 6115—
ReactantTriethylamineHCID 8471—
Reactant3-Ethyl 5-methyl 4-chloro-6-(chlorodifluoromethyl)-2-(trifluoromethyl)-3,5-pyridinedicarboxylateHCID 14013759—
SolventDimethylformamideHCID 6228—
Product3-Ethyl 5-methyl 6-(chlorodifluoromethyl)-4-(phenylamino)-2-(trifluoromethyl)-3,5-pyridinedicarboxylateHCID 14013826—

Reaction Conditions

Temperature35 °C

Reaction Steps

This compound was prepared as described in Example 37: 5.0 g (0.013 mol) of product of Example 28, 3.6 ml (0.039 mol) of aniline, 1.3 g (0.013 mol) of triethylamine in 30 ml of DMF were reacted at room temperature for 16 hours and heated to 35° C. for 20 minutes The residue was recrystallized in hot hexane affording 4.0 g (68.0%) of product as a beige solid; mp 91°-92° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04797149
Source datasetuspto-grants-1989_01
ORD IDord-3545d651f25c48bd8cbc8e6e018f40b0
Source noteuspto-grants-1989_01