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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1730922Generated: October 26, 2026

Ethylene Glycol → 1-(3-Pyridylmethyl)-3-(4-nitrophenyl)urea hydrobromide

https://huagongshe.com/reaction/1730922

Reaction equation

Participants

RoleNameHCIDCharge
ReactantEthylene GlycolHCID 174—
ReactantHydrogen BromideHCID 260—
ReactantDiethyl EtherHCID 3283—
ReactantPyrinuronHCID 40813—
SolventDimethyl EtherHCID 8254—
Product1-(3-Pyridylmethyl)-3-(4-nitrophenyl)urea hydrobromideHCID 2036887276%

Reaction Steps

Gaseous HBr was passed into a solution of 3 g. of 3-pyridylmethyl-3-(4-nitrophenyl)urea in the monomethyl ether of ethyleneglycol. Ether was added to give a precipitate and after isolation, washing with ether and drying, 2.95 g. of white solid was obtained. This was a 76% yield of 1-(3-pyridylmethyl)-3-(4-nitrophenyl)urea hydrobromide.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS03994905
Source datasetuspto-grants-1976_11
ORD IDord-c90e0c80e13f467ab0012d87ee8db524
Source noteuspto-grants-1976_11