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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 447691Generated: October 30, 2026

1-Butanol → n4-Benzyl-6-chloropyrimidine-4,5-diamine

https://huagongshe.com/reaction/447691

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-ButanolHCID 263—
ReactantBenzylamineHCID 7504—
ReactantTriethylamineHCID 8471—
Reactant5-Amino-4,6-dichloropyrimidineHCID 79434—
Productn4-Benzyl-6-chloropyrimidine-4,5-diamineHCID 25859696.1%

Reaction Conditions

Temperature100 °C

Reaction Steps

To a solution of 5-amino-4,6-dichloropyrimidine (8.4 g, 0.051 mol) in 1-butanol (50.0 mL, 0.547 mol) was added triethylamine (12 mL, 0.084 mol) and benzylamine (17 mL, 0.15 mol), and the mixture was heated at 100° C. for 3 hours. The reaction was cooled at 0 C, filtered and washed with ethanol. The residue was dissolved in CH2Cl2 and washed with saturated aqueous NaHCO3, and concentrated. The residue was triturated in diethyl ether to obtain 11.5 g (96%) of a light brown solid.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08481550B2
Source datasetuspto-grants-2013_07
ORD IDord-56755664621840f4a28b852543b5827c
Source noteuspto-grants-2013_07