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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 553410Generated: October 31, 2026

Putrescine → HCID 24752058, compound

https://huagongshe.com/reaction/553410

Reaction equation

Participants

RoleNameHCIDCharge
ReactantPutrescineHCID 1045—
ReactantCyanogen BromideHCID 10476—
Reactant4-(Bromomethyl)-1,2-difluorobenzeneHCID 581436—
ProductHCID 24752058HCID 24752058—

Reaction Steps

The title compound was prepared from 1,4-diaminobutane in four steps by Procedure A, using 3,4-difluorobenzyl bromide as benzylating reagent. After reacting with cyanogen bromide (this step performed at 200° C. for 60 min using MW heating), the crude product was isolated upon aqueous work-up and purified by preparative LCMS to give the title compound as the free base. MS (ES+) m/z 366 ([M+1]+, 100); HR-MS: 366.1599 ([M+1]+, C19H20F4N3; calc. 366.159334).

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08048877B2
Source datasetuspto-grants-2011_11
ORD IDord-a5c1deda724a43bf92f22234d67c0e27
Source noteuspto-grants-2011_11