HuagongsheHuagongshe Chemistry Print Report · For research reference only
Putrescine → HCID 24752058, compound
Participants
| Role | Name | HCID | Charge |
|---|---|---|---|
| Reactant | Putrescine | HCID 1045 | — |
| Reactant | Cyanogen Bromide | HCID 10476 | — |
| Reactant | 4-(Bromomethyl)-1,2-difluorobenzene | HCID 581436 | — |
| Product | HCID 24752058 | HCID 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
| DOI | 10.6084/m9.figshare.5104873.v1 |
|---|---|
| Patent number | US08048877B2 |
| Source dataset | uspto-grants-2011_11 |
| ORD ID | ord-a5c1deda724a43bf92f22234d67c0e27 |
| Source note | uspto-grants-2011_11 |