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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 736668Generated: October 29, 2026

Carbon tetrabromide → HCID 57850288, compound

https://huagongshe.com/reaction/736668

Reaction equation

Participants

RoleNameHCIDCharge
ReactantCarbon tetrabromideHCID 11205—
ReactantTriphenylphosphineHCID 11776—
ReactantHCID 68520514HCID 68520514—
SolventDichloromethaneHCID 6344—
ProductHCID 57850288HCID 5785028884.8%

Reaction Conditions

Temperature0 °C

Reaction Steps

The 1-(1-cyclopropyl-3-hydroxy-propyl)-3-isopropyl-urea (0.189 g, 0.950 mmol) was then dissolved in CH2Cl2 (10 mL) and CBr4 (0.477 g, 1.40 mmol) was added and the mixture was cooled to 0° C. To the mixture was added PPh3-polymer-bound resin (0.889 g, 1.40 mmol; 1.6 mmol/g) in portionwise. After stirring for at rt for 3 h, the mixture was diluted with CH2Cl2 (50 mL), filtered, and washed with CH2Cl2/MeOH/Acetone. The combined filtrates were concentrated in vacuo to give 1-(3-Bromo-1-cyclopropyl-propyl)-3-isopropyl-urea (0.212 g). GC-MS m/z 262.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS07595401B2
Source datasetuspto-grants-2009_09
ORD IDord-6ef820c607e147d5a75994eeb008593c
Source noteuspto-grants-2009_09