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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 4684Generated: October 25, 2026

1-Methylpiperazine → 6-Methyl-5-[1-(4-methylpiperazin-1-yl)ethyl]-4-(3-nitrophenyl)-2-phenylpyrimidine

https://huagongshe.com/reaction/4684

Reaction equation

Participants

RoleNameHCIDCharge
Reactant1-MethylpiperazineHCID 53167—
Reactant5-(1-Bromoethyl)-6-methyl-4-(3-nitrophenyl)-2-phenylpyrimidineHCID 20151394—
SolventIsopropanolHCID 3776—
Product6-Methyl-5-[1-(4-methylpiperazin-1-yl)ethyl]-4-(3-nitrophenyl)-2-phenylpyrimidineHCID 2015142632.4%

Reaction Steps

A mixture of 5-(1-bromoethyl)-6-methyl-4-(3-nitrophenyl)-2-phenylpyrimidine (1.5 g) and N-methylpiperazine (1.13 g) in isopropylalcohol (15 ml) was refluxed for 1.5 hours. The reaction mixture was evaporated in vacuo. The residue was chromatographed on allumina eluting with a mixture of ethyl acetate and n-hexane (1:20). The fractions containing the desired product were combined and concentrated in vacuo. The residue was crystallized from a mixture of n-hexane and diethyl ether to give 6-methyl-5-[1-(4-methylpiperazin-1-yl)ethyl]-4-(3-nitrophenyl)-2-phenylpyrimidine (0.51 g).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS04727073
Source datasetuspto-grants-1988_02
ORD IDord-7f820da542c94a05a709cf0743a91157
Source noteuspto-grants-1988_02