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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 234934Generated: October 30, 2026

Ammonia → 2,4-Diamino-5-(2,4-dichlorophenyl)-6-methylthiopyrimidine

https://huagongshe.com/reaction/234934

Reaction equation

Participants

RoleNameHCIDCharge
ReactantAmmoniaHCID 222—
ReactantEthanamine, 2-(2-methoxyethoxy)-N,N-bis[2-(2-methoxyethoxy)ethyl]-HCID 112414—
Reactant2-Amino-4-chloro-5-(2,4-dichlorophenyl)-6-methylthio pyrimidineHCID 19705079—
CatalystCopperHCID 23978—
SolventEthanolHCID 702—
Product2,4-Diamino-5-(2,4-dichlorophenyl)-6-methylthiopyrimidineHCID 197051171,181.2%

Reaction Conditions

Temperature180 °C

Reaction Steps

A mixture of 2-amino-4-chloro-5-(2,4-dichlorophenyl)-6-methylthio pyrimidine (0.5 g) (Example 32) EtOH saturated with ammonia (20 ml), copper powder (0.05 g) and tris[2-(2-methoxyethoxy)ethyl]amine (0.01 g) was heated in an autoclave at 180° C. for 18 hours. The cooled reaction mixture was filtered, evaporated and the residue purified by flash column chromatography to give the title compound (0.11 g, 23.5%), mp. 191°-192° C. Microanalysis:

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05597827
Source datasetuspto-grants-1997_01
ORD IDord-9d85c620209348b58412b91bdcc5e99b
Source noteuspto-grants-1997_01