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HuagongsheHuagongshe Chemistry Print Report · For research reference only
HRID 1491643Generated: October 31, 2026

3,4-Diaminopyridine → HCID 67849427, compound

https://huagongshe.com/reaction/1491643

Reaction equation

Participants

RoleNameHCIDCharge
Reactant3,4-DiaminopyridineHCID 5918—
Reactant1,1-Bis(methylthio)-2-nitroethyleneHCID 83623—
SolventDimethylformamideHCID 6228—
SolventTriethylamineHCID 8471—
ProductHCID 67849427HCID 6784942713.1%

Reaction Steps

3,4-Diaminopyridine (6.00 g, 55.0 mmol) and 1,1-bis(methylthio)-2-nitroethylene (10.0 g, 60.5 mmol) were dissolved in 60 ml of DMF and 10 ml of triethylamine, followed by reaction at 70° C. for 5 hours. The solvent was removed by distillation under reduced pressure, and the residue was purified by silica gel column chromatography [eluent: chloroform:methanol=2:1 (v/v)] to obtain 1.63 g of the intended product (yield: 13.1%)

Provenance & Evidence

DOI10.6084/m9.figshare.5104873.v1
Patent numberUS05371086
Source datasetuspto-grants-1994_12
ORD IDord-805516621c454ced8608e044dade321e
Source noteuspto-grants-1994_12