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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1936743Generated: October 30, 2026

2-Hydrazino-delta-2-imidazoline hydrobromide → HCID 86758082, compound

https://huagongshe.com/reaction/1936743

Reaction equation

Participants

RoleNameHCIDCharge
Reactant2-Hydrazino-delta-2-imidazoline hydrobromideHCID 3085099—
ReactantHCID 12235673HCID 12235673—
ReactantHCID 15857342HCID 15857342—
SolventMethanolHCID 887—
ProductHCID 86758082HCID 8675808210.9%

Reaction Steps

The operation is carried out as in Example 1 Stages A, B and C but using 390 mg of 4-(3-hydroxyphenyl)-2-butanone and 818 g of ethyl 4-bromo-2-[[(phenylmethoxy)carbonyl]amino]butanoate (Stage A) then, during Stage B, 380 mg of 4,5-dihydro-1H-imidazol-2-yl-hydrazine hydrobromide. The saponification stage is carried out in the presence of soda in methanol. 110 mg of expected product is obtained in the form of an E/Z mixture 45/55.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS06391904B1
Source datasetuspto-grants-2002_05
ORD IDord-f4919368667b4f28b6d072c4231dd551
Source noteuspto-grants-2002_05