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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1768963Generated: November 2, 2026

2,4-Diamino-6-chloropyrimidine → HCID 18946293, compound

https://huagongshe.com/reaction/1768963

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2,4-Diamino-6-chloropyrimidineHCID 67432—
Reactanttert-Butyl piperazine-1-carboxylateHCID 143452—
SolventChlorobenzeneHCID 7964—
ProductHCID 18946293HCID 1894629390.4%

Reaction Steps

A mixture of 2,6-diamino-4-chloropyrimidine (2.88 g, 20 mmol) and 1- (tert-butoxycarbonyl)piperazine (5.6 g, 30 mmol) in chlorobenzene (30 ml) was stirred under reflux for 3 hours. After cooling the formed precipitate was collected and stirred with aqueous 1N NaOH (63 ml) at room temperature for 15 minutes. The solids were collected, washed with water and dried, yield: 90.4%, mp. 176°-179° C.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05380724
Source datasetuspto-grants-1995_01
ORD IDord-4f2c63873b85405d8b0940922e6b8f9b
Source noteuspto-grants-1995_01