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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 2366346Generated: November 3, 2026

N,N,N',N'-Tetramethylethylenediamine → 1,2,3,4-Tetrahydropyrido[2,3-b]pyrazine

https://huagongshe.com/reaction/2366346

Reaction equation

Participants

RoleNameHCIDCharge
ReactantN,N,N',N'-TetramethylethylenediamineHCID 8037—
Reactant5-Bromo-6-chloropyridine-3-sulfonamideHCID 4730022—
ReactantHCID 86661595HCID 86661595—
Product1,2,3,4-Tetrahydropyrido[2,3-b]pyrazineHCID 12531338—

Reaction Steps

The 5-bromo-6-chloro-3-pyridinesulfonamide derivative (lix) (prepared from the commercially available 5-bromo-6-chloropyridine sulfonyl chloride as shown in Scheme 18) is condensed with diamine (lxxix), (lxxx) or N1,N1,N2,N2-tetramethylethane-1,2-diamine to form tetrahydropyridopyrazine derivative (I-e), (I-f) or (I-d), respectively, as shown.

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS08697739B2
Source datasetuspto-grants-2014_04
ORD IDord-5201fa113ba345599e72b16a2a8fb461
Source noteuspto-grants-2014_04