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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 716050Generated: October 30, 2026

Hexamethylenetetramine → 2-Bromo-5H-pyrrolo[2,3-b]pyrazine-7-carbaldehyde

https://huagongshe.com/reaction/716050

Reaction equation

Participants

RoleNameHCIDCharge
ReactantHexamethylenetetramineHCID 4101—
ReactantSodium CarbonateHCID 10340—
Reactant2-bromo-5H-pyrrolo[2,3-b]pyrazineHCID 25067308—
SolventTrifluoroacetic acidHCID 6422—
Product2-Bromo-5H-pyrrolo[2,3-b]pyrazine-7-carbaldehydeHCID 57516587—

Reaction Conditions

Temperature80 °C

Reaction Steps

To a reaction vial, 2-bromo-5H-pyrrolo[2,3-b]pyrazine (1 g, 0.00505 mol) was added in TFA (10 ml). Hexamine (1.06 g, 0.00757 mol) was added and reaction mixture was heated to 80° C. in microwave for 15 min. After completion of the reaction, the reaction mixture was poured into aq. Na2CO3 solution. Solid obtained was filtered, dried and purified using column purification by eluting with 3-5% EtOAc in Hexanes to yield 0.450 g of 2-bromo-5H-pyrrolo[2,3-b]pyrazine-7-carbaldehyde.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS09187487B2
Source datasetuspto-grants-2015_11
ORD IDord-0f159efb45a846dabcd168ab551619d0
Source noteuspto-grants-2015_11